<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.2 20190208//EN" "http://jats.nlm.nih.gov/publishing/1.2/JATS-journalpublishing1.dtd"><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" article-type="systematic-review" dtd-version="1.2" xml:lang="en">
    <front>
        <journal-meta>
            <journal-id journal-id-type="pmc">F1000Research</journal-id>
            <journal-title-group>
                <journal-title>F1000Research</journal-title>
            </journal-title-group>
            <issn pub-type="epub">2046-1402</issn>
            <publisher>
                <publisher-name>F1000 Research Limited</publisher-name>
                <publisher-loc>London, UK</publisher-loc>
            </publisher>
        </journal-meta>
        <article-meta>
            <article-id pub-id-type="doi">10.12688/f1000research.183637.1</article-id>
            <article-categories>
                <subj-group subj-group-type="heading">
                    <subject>Systematic Review</subject>
                </subj-group>
                <subj-group>
                    <subject>Articles</subject>
                </subj-group>
            </article-categories>
            <title-group>
                <article-title>Governing Low-Carbon Landscapes: A Systematic Review of Incentives, Spatial Planning, and Community Forest Management</article-title>
                <fn-group content-type="pub-status">
                    <fn>
                        <p>[version 1; peer review: awaiting peer review]</p>
                    </fn>
                </fn-group>
            </title-group>
            <contrib-group>
                <contrib contrib-type="author" corresp="yes">
                    <name>
                        <surname>Saiyuli</surname>
                        <given-names>Saiyuli</given-names>
                    </name>
                    <role content-type="http://credit.niso.org/">Conceptualization</role>
                    <role content-type="http://credit.niso.org/">Funding Acquisition</role>
                    <role content-type="http://credit.niso.org/">Project Administration</role>
                    <role content-type="http://credit.niso.org/">Supervision</role>
                    <uri content-type="orcid">https://orcid.org/0009-0006-2589-1948</uri>
                    <xref ref-type="corresp" rid="c1">a</xref>
                    <xref ref-type="aff" rid="a1">1</xref>
                </contrib>
                <contrib contrib-type="author" corresp="no">
                    <name>
                        <surname>Mareta</surname>
                        <given-names>Ristia</given-names>
                    </name>
                    <role content-type="http://credit.niso.org/">Conceptualization</role>
                    <role content-type="http://credit.niso.org/">Funding Acquisition</role>
                    <role content-type="http://credit.niso.org/">Investigation</role>
                    <role content-type="http://credit.niso.org/">Methodology</role>
                    <uri content-type="orcid">https://orcid.org/0009-0001-4397-4564</uri>
                    <xref ref-type="aff" rid="a2">2</xref>
                </contrib>
                <contrib contrib-type="author" corresp="no">
                    <name>
                        <surname>Evangelistha</surname>
                        <given-names>Sherin</given-names>
                    </name>
                    <role content-type="http://credit.niso.org/">Funding Acquisition</role>
                    <role content-type="http://credit.niso.org/">Validation</role>
                    <role content-type="http://credit.niso.org/">Writing &#x2013; Original Draft Preparation</role>
                    <role content-type="http://credit.niso.org/">Writing &#x2013; Review &amp; Editing</role>
                    <xref ref-type="aff" rid="a2">2</xref>
                </contrib>
                <contrib contrib-type="author" corresp="no">
                    <name>
                        <surname>Nugrika</surname>
                        <given-names>Vivin</given-names>
                    </name>
                    <role content-type="http://credit.niso.org/">Formal Analysis</role>
                    <role content-type="http://credit.niso.org/">Funding Acquisition</role>
                    <role content-type="http://credit.niso.org/">Investigation</role>
                    <role content-type="http://credit.niso.org/">Writing &#x2013; Review &amp; Editing</role>
                    <xref ref-type="aff" rid="a3">3</xref>
                </contrib>
                <contrib contrib-type="author" corresp="no">
                    <name>
                        <surname>Syam</surname>
                        <given-names>Muh Arief</given-names>
                    </name>
                    <role content-type="http://credit.niso.org/">Data Curation</role>
                    <role content-type="http://credit.niso.org/">Funding Acquisition</role>
                    <role content-type="http://credit.niso.org/">Methodology</role>
                    <role content-type="http://credit.niso.org/">Writing &#x2013; Review &amp; Editing</role>
                    <xref ref-type="aff" rid="a4">4</xref>
                </contrib>
                <contrib contrib-type="author" corresp="no">
                    <name>
                        <surname>Pebriansyah</surname>
                        <given-names>Rian</given-names>
                    </name>
                    <role content-type="http://credit.niso.org/">Funding Acquisition</role>
                    <role content-type="http://credit.niso.org/">Project Administration</role>
                    <role content-type="http://credit.niso.org/">Validation</role>
                    <uri content-type="orcid">https://orcid.org/0009-0002-1653-1853</uri>
                    <xref ref-type="aff" rid="a5">5</xref>
                </contrib>
                <contrib contrib-type="author" corresp="no">
                    <name>
                        <surname>Bhayangkara</surname>
                        <given-names>Bima Dwi Putra</given-names>
                    </name>
                    <role content-type="http://credit.niso.org/">Conceptualization</role>
                    <role content-type="http://credit.niso.org/">Funding Acquisition</role>
                    <role content-type="http://credit.niso.org/">Resources</role>
                    <role content-type="http://credit.niso.org/">Writing &#x2013; Review &amp; Editing</role>
                    <xref ref-type="aff" rid="a6">6</xref>
                </contrib>
                <contrib contrib-type="author" corresp="no">
                    <name>
                        <surname>Panjaitan</surname>
                        <given-names>Jeremy Given Adriel Orlando</given-names>
                    </name>
                    <role content-type="http://credit.niso.org/">Funding Acquisition</role>
                    <role content-type="http://credit.niso.org/">Software</role>
                    <role content-type="http://credit.niso.org/">Visualization</role>
                    <role content-type="http://credit.niso.org/">Writing &#x2013; Review &amp; Editing</role>
                    <xref ref-type="aff" rid="a7">7</xref>
                </contrib>
                <contrib contrib-type="author" corresp="no">
                    <name>
                        <surname>Anwar</surname>
                        <given-names>Widya Anjani</given-names>
                    </name>
                    <role content-type="http://credit.niso.org/">Data Curation</role>
                    <role content-type="http://credit.niso.org/">Formal Analysis</role>
                    <role content-type="http://credit.niso.org/">Funding Acquisition</role>
                    <role content-type="http://credit.niso.org/">Visualization</role>
                    <xref ref-type="aff" rid="a8">8</xref>
                </contrib>
                <aff id="a1">
                    <label>1</label>Public Administration, Universitas Padjadjaran, Bandung, West Java, 40132, Indonesia</aff>
                <aff id="a2">
                    <label>2</label>Public Policy, Universitas Padjadjaran, Bandung, West Java, 40132, Indonesia</aff>
                <aff id="a3">
                    <label>3</label>Rural Sociology, IPB University, Bogor, West Java, 16680, Indonesia</aff>
                <aff id="a4">
                    <label>4</label>Forest Management Science, IPB University, Bogor, West Java, 16680, Indonesia</aff>
                <aff id="a5">
                    <label>5</label>Urban and Regional Planning, Universitas Gadjah Mada, Yogyakarta, Special Region of Yogyakarta, 55281, Indonesia</aff>
                <aff id="a6">
                    <label>6</label>Public Policy and Management, Universitas Gadjah Mada, Yogyakarta, Special Region of Yogyakarta, 55281, Indonesia</aff>
                <aff id="a7">
                    <label>7</label>Economic Planning and Development Policy, Universitas Indonesia, Depok, West Java, 16424, Indonesia</aff>
                <aff id="a8">
                    <label>8</label>Management, Universitas Padjadjaran, Bandung, West Java, 40132, Indonesia</aff>
            </contrib-group>
            <author-notes>
                <corresp id="c1">
                    <label>a</label>
                    <email xlink:href="mailto:saiyuli24001@mail.unpad.ac.id">saiyuli24001@mail.unpad.ac.id</email>
                </corresp>
                <fn fn-type="conflict">
                    <p>No competing interests were disclosed.</p>
                </fn>
            </author-notes>
            <pub-date pub-type="epub">
                <day>8</day>
                <month>7</month>
                <year>2026</year>
            </pub-date>
            <pub-date pub-type="collection">
                <year>2026</year>
            </pub-date>
            <volume>15</volume>
            <elocation-id>1108</elocation-id>
            <history>
                <date date-type="accepted">
                    <day>8</day>
                    <month>6</month>
                    <year>2026</year>
                </date>
            </history>
            <permissions>
                <copyright-statement>Copyright: &#x00a9; 2026 Saiyuli S et al.</copyright-statement>
                <copyright-year>2026</copyright-year>
                <license xlink:href="https://creativecommons.org/licenses/by/4.0/">
                    <license-p>This is an open access article distributed under the terms of the Creative Commons Attribution Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.</license-p>
                </license>
            </permissions>
            <self-uri content-type="pdf" xlink:href="https://f1000research.com/articles/15-1108/pdf"/>
            <abstract>
                <p>Integrating incentive policies, spatial planning, and community forest management is increasingly promoted for low-carbon development, yet evidence on their combined effectiveness remains fragmented. This systematic review synthesises empirical evidence across diverse geographic and institutional contexts. Following PRISMA 2020 guidelines, we searched Scopus, Springer, and ScienceDirect using a search string combining low-carbon, community, incentives, planning, and forest management. Studies published between 2016 and 2026 in English, open access, and reporting empirical research were included. After title-abstract (n&#x00a0;=&#x00a0;503) and full-text screening (n&#x00a0;=&#x00a0;58), 13 studies from 11 countries were included. Methodological quality was assessed using the Mixed Methods Appraisal Tool (MMAT). Thematic synthesis was conducted based on the PEO framework (Population, Exposure, Outcome). Incentive mechanisms (REDD+, carbon credits, PES, tax relief
) and community forest management (CFMGs, agroforestry, NTFP commercialisation) are widely implemented, but spatial planning remains weakly integrated. Success factors include participatory governance, transparent benefit-sharing, flexible long-term schemes, and trusted local advisory support. Persistent barriers distrust in government, high transaction costs, short-term policies, gender inequities, weak state authority, elite capture, and leakage consistently undermine outcomes. Risk of bias assessment revealed moderate-to-low risk across most studies, with common limitations being lack of researcher reflexivity and reliance on secondary data. Technical carbon interventions cannot succeed without addressing power asymmetries, strengthening local institutions, and placing communities at the centre of decision-making. Policies should prioritise flexible, long-term incentive design, gender-responsive approaches, secure land tenure, and cross-sectoral coordination.</p>
            </abstract>
            <kwd-group kwd-group-type="author">
                <kwd>Low-carbon development; Community forestry; Incentive schemes; Forest governance; Systematic review</kwd>
            </kwd-group>
            <funding-group>
                <award-group id="fund-1" xlink:href="https://doi.org/10.13039/501100014538">
                    <funding-source>Lembaga Pengelola Dana Pendidikan</funding-source>
                </award-group>
                <funding-statement>This research was supported by the Indonesia Endowment Fund for Education (Lembaga Pengelola Dana Pendidikan &#x2013; LPDP), Ministry of Finance, Republic of Indonesia. The funder had no role in the study design, data collection, analysis, interpretation, or manuscript writing. </funding-statement>
                <funding-statement>
                    <italic>The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.</italic>
                </funding-statement>
            </funding-group>
        </article-meta>
    </front>
    <body>
        <sec id="sec1" sec-type="intro">
            <title>1. Introduction</title>
            <p>Climate change is widely recognised as one of the most pressing global challenges of the twenty-first century, with profound implications for ecosystems, economies, and human well-being (
                <xref ref-type="bibr" rid="ref18">IPCC, 2022</xref>). The land use, land-use change, and forestry (LULUCF) sector contributes significantly to global greenhouse gas (GHG) emissions, accounting for approximately 13&#x2013;21% of total anthropogenic emissions (
                <xref ref-type="bibr" rid="ref15">FAO, 2020</xref>). At the same time, forests and agricultural lands offer substantial opportunities for carbon sequestration and emission reduction, making them central to climate change mitigation strategies (
                <xref ref-type="bibr" rid="ref16">Griscom et al., 2017</xref>).</p>
            <p>In response to the climate crisis, many countries have committed to reducing emissions through their Nationally Determined Contributions (NDCs) under the Paris Agreement (
                <xref ref-type="bibr" rid="ref40">UNFCCC, 2015</xref>). A growing number of these commitments emphasise land-based mitigation, including reforestation, avoided deforestation, sustainable forest management, and the adoption of climate-smart agricultural practices (
                <xref ref-type="bibr" rid="ref34">Seddon et al., 2019</xref>). Among the most prominent mechanisms is REDD+ (Reducing Emissions from Deforestation and Forest Degradation), which provides financial incentives for developing countries to conserve and sustainably manage their forests (
                <xref ref-type="bibr" rid="ref5">Angelsen et al., 2012</xref>). Similarly, payment for ecosystem services (PES) schemes and voluntary carbon markets have emerged as tools to channel private and public finance towards nature-based solutions (
                <xref ref-type="bibr" rid="ref41">Wunder, 2015</xref>).</p>
            <p>Despite the proliferation of incentive-based mechanisms, their effectiveness in achieving both carbon mitigation and livelihood improvement remains contested (
                <xref ref-type="bibr" rid="ref7">B&#x00f6;rner et al., 2017</xref>). A growing body of evidence suggests that top-down, technocratic approaches often fail to address the complex social, political, and institutional contexts in which land-use decisions are made, while multi-stakeholder partnerships have been proposed as a more inclusive mechanism to tackle climate change (
                <xref ref-type="bibr" rid="ref9">Bulmer &amp; Y&#x00e1;&#x00f1;ez-Araque, 2023</xref>). Moreover, incentive policies rarely operate in isolation; they interact with regional planning frameworks (e.g., land zoning, spatial plans) and local forest management practices (e.g., community forestry, agroforestry). However, the integration of these three domains incentives, planning, and community-based management is poorly understood, and there is limited systematic evidence on how they jointly influence low-carbon development outcomes (
                <xref ref-type="bibr" rid="ref30">Ribot &amp; Larson, 2005</xref>).</p>
            <p>Furthermore, governance challenges such as power asymmetries, elite capture, weak state authority, gender inequities, and lack of trust in external actors frequently undermine the intended impacts of forest carbon projects (
                <xref ref-type="bibr" rid="ref4">Angelsen, 2009</xref>; 
                <xref ref-type="bibr" rid="ref22">McDermott et al., 2012</xref>). Transaction costs, insecure land tenure, and short-term policy horizons further constrain the participation of local communities, particularly smallholders and women (
                <xref ref-type="bibr" rid="ref1">Aggarwal &amp; Brockington, 2020</xref>; 
                <xref ref-type="bibr" rid="ref12">Corbera et al., 2010</xref>). While numerous case studies have examined individual projects or policy instruments, a comprehensive synthesis that integrates evidence across different geographic and institutional contexts is urgently needed.</p>
            <p>Existing reviews have focused on discrete aspects of low-carbon land-use interventions. For example, some systematic reviews have examined the cost-effectiveness of REDD+ (
                <xref ref-type="bibr" rid="ref29">Rakatama et al., 2017</xref>), the adoption of agroforestry (
                <xref ref-type="bibr" rid="ref38">Torralba et al., 2016</xref>), or the role of PES in conservation (
                <xref ref-type="bibr" rid="ref14">Ezzine-de-Blas et al., 2016</xref>). Others have explored governance challenges in forest carbon projects (
                <xref ref-type="bibr" rid="ref8">Brockhaus et al., 2014</xref>) or the social equity implications of PES (
                <xref ref-type="bibr" rid="ref27">Pascual et al., 2014</xref>). However, no prior systematic review has explicitly examined the integration of three interrelated domains incentive policies, regional planning, and community-based forest management for community-based low-carbon development. Furthermore, the specific conditions under which such integration leads to positive environmental and socio-economic outcomes remain unclear.</p>
            <p>This review addresses this gap by systematically synthesising empirical evidence from 13 studies spanning 11 countries. It adopts a PEO (Population, Exposure, Outcome) framework to structure the analysis and draws on concepts from multilevel governance, principal-agent theory, and restorative justice to interpret findings.</p>
            <p>This systematic review is guided by four research questions derived from the PEO framework. First, what types of incentive policies, regional planning mechanisms, and community-based forest management practices have been implemented in community-based low-carbon development contexts? Second, how do these interventions influence carbon emission reduction, carbon sequestration, and socio-economic outcomes for local communities? Third, what contextual factors such as land tenure, institutional capacity, local participation, and gender norms moderate the relationship between interventions and outcomes? Fourth, what evidence gaps and policy recommendations emerge from the literature on integrated approaches?</p>
            <p>The aim of this systematic review is to synthesise empirical evidence on the integration of incentive policies, regional planning, and community-based forest management for community-based low-carbon development. To achieve this aim, the review identifies and characterises the types of interventions reported in the literature, assesses their environmental and socio-economic outcomes, analyses key success factors and barriers, and provides evidence-based policy recommendations for more equitable and effective interventions.</p>
            <p>This review contributes to theory by applying and extending concepts of multilevel governance, polycentricity, principal-agent relations, and restorative justice to the analysis of land-based climate mitigation. Practically, the findings are relevant to policymakers, project developers, and practitioners engaged in REDD+, PES, carbon farming, and community forestry. The review also supports the achievement of multiple Sustainable Development Goals (SDGs), including SDG 1 (No Poverty), SDG 5 (Gender Equality), SDG 13 (Climate Action), and SDG 15 (Life on Land).</p>
        </sec>
        <sec id="sec2">
            <title>2. Methodology</title>
            <sec id="sec3">
                <title>2.1 Research Design</title>
                <p>This study employed a systematic literature review (SLR) design following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2020 guidelines (
                    <xref ref-type="bibr" rid="ref26">Page et al., 2021</xref>). The SLR approach was selected to systematically identify, evaluate, and synthesize empirical evidence on the integration of incentive policies, regional planning, and community-based forest management for low-carbon development. A qualitative thematic synthesis was conducted due to the heterogeneity of study designs, outcomes, and contexts among the included studies (
                    <xref ref-type="bibr" rid="ref28">Popay et al., 2006</xref>).</p>
            </sec>
            <sec id="sec4">
                <title>2.2 Eligibility Criteria</title>
                <p>The eligibility criteria were established a priori using the PEO framework (Population, Exposure, Outcome) (
                    <xref ref-type="bibr" rid="ref23">Moola et al., 2020</xref>). Studies were included if they: (1) focused on local communities (Population); (2) addressed at least one of three exposure domains incentive policies, regional planning, or community-based forest management; (3) reported at least one outcome environmental (e.g., carbon emission reduction, carbon sequestration) or socio-economic (e.g., income, participation, livelihoods); (4) were empirical research articles (original studies); (5) were published in English; (6) were published between 2016 and 2026; and (7) were open access. 
                    <xref ref-type="table" rid="T1">
Table 1</xref> presents the full inclusion and exclusion criteria applied during the study selection process.</p>
                <table-wrap id="T1" orientation="portrait" position="float">
                    <label>
Table 1. </label>
                    <caption>
                        <title>Criteria for Inclusion and Exclusion.</title>
                    </caption>
                    <table content-type="article-table" frame="hsides">
                        <thead>
                            <tr>
                                <th align="left" colspan="1" rowspan="1" valign="top">Criteria</th>
                                <th align="left" colspan="1" rowspan="1" valign="top">Inclusion</th>
                                <th align="left" colspan="1" rowspan="1" valign="top">Exclusion</th>
                            </tr>
                        </thead>
                        <tbody>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">Database</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Scopus, Springer, ScienceDirect</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Other databases (e.g., Web of Science, PubMed, Google Scholar)</td>
                            </tr>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">Publication Year</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">2016&#x2013;2026</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Articles published before 2016 or after 2026</td>
                            </tr>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">Language</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">English</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Non-English articles</td>
                            </tr>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">Document Type</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Research articles (original empirical studies: quantitative, qualitative, or mixed-methods)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Books, book chapters, conference proceedings, review articles (systematic reviews, meta-analyses), editorials, commentaries</td>
                            </tr>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">Access to Full Text</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Open access (free full text available immediately upon publication)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Limited or no access (paywalled, subscription required, or only abstract available)</td>
                            </tr>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">Population/Setting</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Local communities, rural households, forest-dependent groups, indigenous people, cooperatives, or local institutions involved in land/forest management</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Studies focusing only on government, private sector, or national-level actors without community involvement</td>
                            </tr>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">Exposure (Intervention)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">At least one of the following:
                                    <break/>

                                    <p>

                                        <list list-type="bullet">
                                            <list-item>
                                                <label>&#x2022;</label>
                                                <p>Incentive policies (e.g., PES, carbon credits, subsidies, REDD+)</p>
                                            </list-item>
                                            <list-item>
                                                <label>&#x2022;</label>
                                                <p>Regional/spatial planning (e.g., land use zoning, participatory planning)</p>
                                            </list-item>
                                            <list-item>
                                                <label>&#x2022;</label>
                                                <p>Community-based forest management (e.g., agroforestry, sustainable forestry, restoration)</p>
                                            </list-item>
                                        </list>
                                    </p>
</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">No exposure related to incentive policies, regional planning, or community-based forest management</td>
                            </tr>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">Outcome</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">At least one of the following:
                                    <break/>

                                    <p>

                                        <list list-type="bullet">
                                            <list-item>
                                                <label>&#x2022;</label>
                                                <p>Environmental outcome: CO
                                                    <sub>2</sub> emission reduction, carbon sequestration, land cover change, avoided deforestation</p>
                                            </list-item>
                                            <list-item>
                                                <label>&#x2022;</label>
                                                <p>Socio-economic outcome: income improvement, community participation, local institutional strengthening, livelihood changes, perceptions</p>
                                            </list-item>
                                        </list>
                                    </p>
</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Outcomes only environmental (without socio-economic link) or only macroeconomic (e.g., national GDP) without local community dimension</td>
                            </tr>
                        </tbody>
                    </table>
                    <table-wrap-foot>
                        <p>Source: Researcher&#x2019;s Process (2026).</p>
                    </table-wrap-foot>
                </table-wrap>
            </sec>
            <sec id="sec5">
                <title>2.3 Sources of Information and Search Strategies</title>
                <p>Three electronic databases were searched: Scopus, Springer, and ScienceDirect. These databases were selected because they provide comprehensive coverage of peer-reviewed literature in environmental science, forestry, public policy, and development studies. The search was conducted on 3 May 2026. 
                    <xref ref-type="table" rid="T2">
Table 2</xref> summarises the databases and the last search dates.</p>
                <table-wrap id="T2" orientation="portrait" position="float">
                    <label>
Table 2. </label>
                    <caption>
                        <title>Databases and Last Search Dates.</title>
                    </caption>
                    <table content-type="article-table" frame="hsides">
                        <thead>
                            <tr>
                                <th align="left" colspan="1" rowspan="1" valign="top">No</th>
                                <th align="left" colspan="1" rowspan="1" valign="top">Database</th>
                                <th align="left" colspan="1" rowspan="1" valign="top">
Last Search Dates</th>
                            </tr>
                        </thead>
                        <tbody>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">1</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Scopus</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">03 May 2026</td>
                            </tr>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">2</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">ScienceDirect</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">03 May 2026</td>
                            </tr>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">3</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Springer</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">03 May 2026</td>
                            </tr>
                        </tbody>
                    </table>
                    <table-wrap-foot>
                        <p>Source: Researcher&#x2019;s Process (2026).</p>
                    </table-wrap-foot>
                </table-wrap>
                <p>The search strategy combined keywords related to low-carbon development, community-based approaches, incentive policies, regional planning, and forest management using Boolean operators (AND, OR). The following simplified search string was applied across all databases (
                    <xref ref-type="bibr" rid="ref19">Lefebvre et al., 2019</xref>): 
                    <italic toggle="yes">(&#x201c;low carbon&#x201d; OR &#x201c;low-carbon&#x201d;) AND community AND (incentive OR planning OR forest).</italic>
                </p>
                <p>The search was limited to peer-reviewed research articles published between 2016 and 2026 in English. No additional filters (e.g., country or study design) were applied at this stage to maximise sensitivity.</p>
            </sec>
            <sec id="sec6">
                <title>2.4 Study Selection Process</title>
                <p>The study selection process followed the PRISMA 2020 flow diagram (
                    <xref ref-type="bibr" rid="ref26">Page et al., 2021</xref>). 
                    <xref ref-type="fig" rid="f1">
Figure 1</xref> presents the number of records identified, screened, assessed for eligibility, and included in the final synthesis.</p>
                <fig fig-type="figure" id="f1" orientation="portrait" position="float">
                    <label>
Figure 1. </label>
                    <caption>
                        <title>The PRISMA flow diagram.</title>
                        <p>Source: Authors (2026) based on PRISMA 2020 (
                            <xref ref-type="bibr" rid="ref26">Page et al., 2021</xref>).</p>
                    </caption>
                    <graphic id="gr1" orientation="portrait" position="float" xlink:href="https://f1000research-files.f1000.com/manuscripts/202696/93e1e7fd-8f42-43cc-a7a3-5c035c7fd690_figure1.gif"/>
                </fig>
                <p>A total of 503 records were initially identified from the three databases: Scopus (n&#x00a0;=&#x00a0;118), Springer (n&#x00a0;=&#x00a0;377), and ScienceDirect (n&#x00a0;=&#x00a0;8). No duplicate records were found across databases. After title and abstract screening, 58 records were retained (Scopus&#x00a0;=&#x00a0;42, Springer&#x00a0;=&#x00a0;14, ScienceDirect&#x00a0;=&#x00a0;2). The remaining 445 records were excluded because they did not meet the eligibility criteria for publication year (2016&#x2013;2026), document type (research articles), language (English), or open access status (see 
                    <xref ref-type="table" rid="T1">
Table 1</xref>).</p>
                <p>The full texts of the 58 potentially eligible articles were retrieved and assessed independently by two reviewers. During this full-text eligibility stage, 45 articles were excluded for the following reasons: (i) wrong population (no local community involvement); (ii) wrong exposure (no incentive policy, regional planning, or community-based forest management); or (iii) wrong outcome (no environmental or socio-economic measure). Consequently, 13 studies met all inclusion criteria and were included in the thematic synthesis. The inter-rater agreement for full-text screening was high (Cohen&#x2019;s &#x03ba;&#x00a0;=&#x00a0;0.89, 95% CI: 0.82&#x2013;0.96), indicating strong consistency between reviewers (
                    <xref ref-type="bibr" rid="ref11">Cohen, 1960</xref>).</p>
            </sec>
            <sec id="sec7">
                <title>2.5 Data Extraction</title>
                <p>A standardised data extraction form was developed based on the PEO framework and the review&#x2019;s research questions (
                    <xref ref-type="bibr" rid="ref10">Buscemi et al., 2006</xref>). The following information was extracted from each included study: (1) author(s), year, and country; (2) study design and methods; (3) population (type and size); (4) exposure domains (incentive type, planning mechanism, forest management practice); (5) environmental and socio-economic outcomes; (6) key success factors and barriers; and (7) funding sources if reported. Data extraction was performed independently by one reviewer and verified by a second reviewer to minimise errors.</p>
            </sec>
            <sec id="sec8">
                <title>2.6 Risk of Bias Assessment</title>
                <p>The methodological quality of the 13 included studies was assessed independently by two reviewers using the Mixed Methods Appraisal Tool (MMAT) version 2018 (
                    <xref ref-type="bibr" rid="ref17">Hong et al., 2018</xref>). The MMAT is designed for systematic reviews that include qualitative, quantitative, and mixed-methods studies, making it appropriate for the heterogeneous designs of the included studies (six qualitative, five mixed-methods, two quantitative modelling studies). Each study was rated against five criteria specific to its design category. For the two modelling studies (
                    <xref ref-type="bibr" rid="ref32">Rossita &amp; Boer, 2025</xref>; 
                    <xref ref-type="bibr" rid="ref36">Suwarno et al., 2018</xref>), which do not fit into standard MMAT categories, a descriptive appraisal was conducted based on transparency of assumptions, validation, and reproducibility. Disagreements between reviewers were resolved through discussion. No study was excluded based on quality; the assessment was used to interpret the strength of evidence in the synthesis. 
                    <xref ref-type="table" rid="T3">
Table 3</xref> presents the risk of bias assessment.</p>
                <table-wrap id="T3" orientation="portrait" position="float">
                    <label>
Table 3. </label>
                    <caption>
                        <title>Risk of Bias Assessment of the 13 Included Studies (based on MMAT 2018).</title>
                    </caption>
                    <table content-type="article-table" frame="hsides">
                        <thead>
                            <tr>
                                <th align="left" colspan="1" rowspan="1" valign="top">ID</th>
                                <th align="left" colspan="1" rowspan="1" valign="top">Author(s) (Year)</th>
                                <th align="left" colspan="1" rowspan="1" valign="top">Study Design</th>
                                <th align="left" colspan="1" rowspan="1" valign="top">MMAT Criteria/Quality Indicators</th>
                                <th align="left" colspan="1" rowspan="1" valign="top">Risk of Bias Judgment</th>
                            </tr>
                        </thead>
                        <tbody>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">S1</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">
                                    <xref ref-type="bibr" rid="ref13">Delma et al. (2026)</xref>
                                </td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Mixed-methods
</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">All five criteria met</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Low</td>
                            </tr>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">S2</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">
                                    <xref ref-type="bibr" rid="ref20">Luttrell et al. (2018)</xref>
                                </td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Mixed-methods
</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">All five criteria met</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Low</td>
                            </tr>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">S3</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">
                                    <xref ref-type="bibr" rid="ref6">Beth et al. (2026)</xref>
                                </td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Qualitative</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">1&#x2013;4 &#x2713;, reflexivity X</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Moderate</td>
                            </tr>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">S4</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">
                                    <xref ref-type="bibr" rid="ref24">Morello et al. (2025)</xref>
                                </td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Qualitative</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">1&#x2013;4 &#x2713;, reflexivity X</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Moderate</td>
                            </tr>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">S5</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">
                                    <xref ref-type="bibr" rid="ref36">Suwarno et al. (2018)</xref>
                                </td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Modelling</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Transparent assumptions, validation, sensitivity analysis</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Moderate</td>
                            </tr>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">S6</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">
                                    <xref ref-type="bibr" rid="ref32">Rossita &amp; Boer (2025)</xref>
                                </td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Modelling</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Transparent assumptions, sensitivity analysis</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Moderate</td>
                            </tr>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">S7</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">
                                    <xref ref-type="bibr" rid="ref3">Andrews &amp; Borgerhoff Mulder (2018)</xref>
                                </td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Qualitative</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">1&#x2013;4 &#x2713;, reflexivity X</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Moderate</td>
                            </tr>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">S8</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">
                                    <xref ref-type="bibr" rid="ref39">Tripathy et al. (2025)</xref>
                                </td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Mixed-methods
</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">All five criteria met</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Low</td>
                            </tr>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">S9</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">
                                    <xref ref-type="bibr" rid="ref21">Mantey et al. (2024)</xref>
                                </td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Qualitative</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">All five criteria met</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Low</td>
                            </tr>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">S10</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">
                                    <xref ref-type="bibr" rid="ref2">Akinbami et al. (2019)</xref>
                                </td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Mixed-methods
</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">All five criteria met</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Low</td>
                            </tr>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">S11</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">
                                    <xref ref-type="bibr" rid="ref35">Sharma et al. (2023)</xref>
                                </td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Qualitative</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">1&#x2013;4 &#x2713;, reflexivity X</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Moderate</td>
                            </tr>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">S12</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">
                                    <xref ref-type="bibr" rid="ref42">Zhu &amp; Lo (2021)</xref>
                                </td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Qualitative</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">All five criteria met</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Low</td>
                            </tr>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">S13</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">
                                    <xref ref-type="bibr" rid="ref31">Rodriguez-Ward et al. (2018)</xref>
                                </td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Qualitative</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">1&#x2013;4 &#x2713;, reflexivity X</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Moderate</td>
                            </tr>
                        </tbody>
                    </table>
                    <table-wrap-foot>
                        <p>Source: Authors&#x2019; assessment using the Mixed Methods Appraisal Tool (MMAT) version 2018 (
                            <xref ref-type="bibr" rid="ref17">Hong et al., 2018</xref>). Modelling studies were assessed descriptively based on transparency, validation, and reproducibility.</p>
                    </table-wrap-foot>
                </table-wrap>
                <p>
                    <xref ref-type="table" rid="T3">
Table 3</xref> shows that the majority of studies demonstrated high or moderate quality. Most qualitative and mixed-methods studies met four or five MMAT criteria. Common limitations were lack of researcher reflexivity in qualitative studies and insufficient reporting of sampling strategies. The two modelling studies were transparent in their assumptions but relied on data and parameters that may limit generalisability. No study was rated as low quality across all domains.</p>
            </sec>
            <sec id="sec9">
                <title>2.7 Data Synthesis</title>
                <p>Given the heterogeneity of study designs, outcomes, and contexts, a thematic synthesis approach was employed (
                    <xref ref-type="bibr" rid="ref37">Thomas &amp; Harden, 2008</xref>). This method is appropriate for integrating findings from qualitative, quantitative, and mixed-methods studies in systematic reviews. The synthesis proceeded in three stages: (1) line-by-line coding of extracted data; (2) organisation of codes into descriptive themes based on the PEO framework; and (3) generation of analytical themes that go beyond the original findings to answer the review&#x2019;s research questions. Coding was performed manually using a structured coding sheet developed by the research team. The synthesis focused on identifying patterns in exposure types, outcomes, success factors, barriers, and governance challenges across the included studies. The results of the synthesis are presented in tabular and narrative form in the Results and Discussion section (
                    <xref ref-type="table" rid="T4">
Tables 4 and 5</xref>).</p>
                <table-wrap id="T4" orientation="portrait" position="float">
                    <label>
Table 4. </label>
                    <caption>
                        <title>Characteristics of 13 Included Studies.</title>
                    </caption>
                    <table content-type="article-table" frame="hsides">
                        <thead>
                            <tr>
                                <th align="left" colspan="1" rowspan="1" valign="top">ID</th>
                                <th align="left" colspan="1" rowspan="1" valign="top">Author(s) (Year)</th>
                                <th align="left" colspan="1" rowspan="1" valign="top">Country/Location</th>
                                <th align="left" colspan="1" rowspan="1" valign="top">Study Method</th>
                                <th align="left" colspan="1" rowspan="1" valign="top">Population (P)</th>
                                <th align="left" colspan="1" rowspan="1" valign="top">Exposure (E)</th>
                                <th align="left" colspan="1" rowspan="1" valign="top">Outcome (O)</th>
                                <th align="left" colspan="1" rowspan="1" valign="top">Key Findings</th>
                            </tr>
                        </thead>
                        <tbody>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">S1</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">
                                    <xref ref-type="bibr" rid="ref13">Delma et al. (2026)</xref>
                                </td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Bhutan</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Mixed-methods (quantitative carbon break-even analysis + qualitative FGDs &amp; interviews)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">20 Community Forest Management Groups (CFMGs) across 5 agro-ecological zones</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Incentive: carbon break-even price (USD 35/MgCO
                                    <sub>2</sub>); Planning: community forest zoning; Forest management: foregone timber harvest, CFMG governance</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Carbon sequestration potential (151,012 MgCO
                                    <sub>2</sub>/year); mixed stakeholder perceptions</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Carbon break-even price sensitive to leakage &amp; transaction costs; need for carbon rights clarity, longer management plans, capacity building</td>
                            </tr>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">S2</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">
                                    <xref ref-type="bibr" rid="ref20">Luttrell et al. (2018)</xref>
                                </td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Brazil, Cameroon, Indonesia, Peru, Tanzania (5 countries)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Mixed-methods (interviews with key informants, document review)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">22 subnational REDD+ initiatives; local communities, smallholders, concession holders</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Incentive: REDD+ carbon credits; Planning: subnational jurisdictional planning; Forest management: SFM, logging restrictions, conservation</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Implementation costs (start-up); cost-sharing patterns; number of organizations involved (139 organizations)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Subnational &amp; government organizations bear significant costs (56% burden-sharing); polycentric governance emerging but hollow core (lack village-level involvement)</td>
                            </tr>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">S3</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">
                                    <xref ref-type="bibr" rid="ref6">Beth et al. (2026)</xref>
                                </td>
                                <td align="left" colspan="1" rowspan="1" valign="top">England, UK</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Qualitative (4 focus groups, n&#x00a0;=&#x00a0;24 farmers)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Farmers (arable, livestock, mixed)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Incentive: ELMS, SFI, Countryside Stewardship; Planning: spatial planning for agroforestry; Forest management: agroforestry (silvopastoral, silvoarable)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Perceived benefits &amp; barriers; low adoption (3.3%)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Financial viability, scheme inflexibility, long-term vs short-term policy mismatch; trust in government low; peer learning &amp; trusted advisors key facilitators</td>
                            </tr>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">S4</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">
                                    <xref ref-type="bibr" rid="ref24">Morello et al. (2025)</xref>
                                </td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Brazil (Mato Grosso &#x2013; Amazon, Cerrado, Pantanal)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Qualitative (semi-structured interviews, n&#x00a0;=&#x00a0;46 smallholders)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Smallholder farmers</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Incentive: input-based vs output-based contracts (PES); Planning: Economic-Ecological Zoning (ZEE); Forest management: forest conservation, reforestation</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Preferences for contract types; perceptions of ES; willingness to participate</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Farmers prefer input-based contracts over output-based due to risk from neighbors&#x2019; actions; forests seen as ES source despite deforestation; need for technical support &amp; flexible schemes</td>
                            </tr>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">S5</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">
                                    <xref ref-type="bibr" rid="ref36">Suwarno et al. (2018)</xref>
                                </td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Indonesia (Central Kalimantan &#x2013; West Kotawaringin &amp; Kapuas districts)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Agent-based modeling (LUCES model)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Local communities, private companies, households</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Incentive: forest moratorium, premium prices for NTFP; Planning: spatial planning, land zoning; Forest management: agroforestry, timber plantations, conservation</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Land-use change dynamics; CO
                                    <sub>2</sub> emissions reduction (up to 36% with livelihood support)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Moratorium alone ineffective; adding livelihood support (premium NTFP prices) reduces emissions by 23&#x2013;36% in West Kotawaringin; context matters between districts</td>
                            </tr>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">S6</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">
                                    <xref ref-type="bibr" rid="ref32">Rossita &amp; Boer (2025)</xref>
                                </td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Indonesia (national-level, with focus on West Kalimantan &amp; Central Kalimantan)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Quantitative (COMAP model, cost analysis)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Private sector (companies), communities, government</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Incentive: carbon credits, REDD+; Planning: NDC mitigation planning, land allocation by forest function; Forest management: reforestation, rehabilitation, RIL, ENR, forest protection</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Mitigation costs (USD/ha, USD/tC); total cost for NDC target (USD 34.3 billion life cycle)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Indirect &amp; transaction costs 10&#x2013;43% &amp; 4&#x2013;19% for private sector; most cost-effective: forest conservation &amp; peatland management; need incentives &amp; financing diversification</td>
                            </tr>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">S7</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">
                                    <xref ref-type="bibr" rid="ref3">Andrews &amp; Borgerhoff Mulder (2018)</xref>
                                </td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Tanzania (Pemba Island, Zanzibar)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Qualitative (interviews with 93 respondents, FGDs, participatory mapping)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">18 shehia with CoFMAs (REDD-ready), community members, SCCs</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Incentive: performance payments (motivation payments); Planning: High Protection Areas (HPA) zoning, village land use planning; Forest management: CoFMA, monitoring, restoration</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Perceptions of forest management improvement; corruption indicators; leakage</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">REDD+ shehia show better management &amp; communication but higher perceived corruption; no significant emission reduction yet; leakage &amp; elite capture challenges; cMLS framework useful</td>
                            </tr>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">S8</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">
                                    <xref ref-type="bibr" rid="ref39">Tripathy et al. (2025)</xref>
                                </td>
                                <td align="left" colspan="1" rowspan="1" valign="top">India (18 states, 9,570 villages)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Mixed-methods (case study, interviews, FGDs, document analysis)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Smallholder farmers, members of PFFCS/PLDCS (172 cooperatives)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Incentive: VCS carbon credits (VERRA); Planning: cooperative-based planning (PFFCS); Forest management: agroforestry (Melia, Ailanthus)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Carbon credits generated (78,000); farmer income (INR 250,000 average); contribution to 8 SDGs</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Participatory governance, transparent revenue sharing (tri-party agreement), reinvestment key to success; ROI 92%; model scalable</td>
                            </tr>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">S9</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">
                                    <xref ref-type="bibr" rid="ref21">Mantey et al. (2024)</xref>
                                </td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Kenya (Trans-Nzoia &amp; Bungoma counties)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Qualitative (85 interviews, 10 FGDs, Process Net-Map)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Smallholder farmers, dairy cooperatives, community facilitators, women (&gt;70%)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Incentive: output-based carbon payments + extension services; Planning: project-based planning; Forest management: SALM (agroforestry, residue mgt, cover crops, manure mgt)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Adoption rates; gender equity in benefit sharing; transaction costs</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Women main adopters but lack control over assets/benefits due to gender norms; carbon payments low; digital tools used only for data collection, not for participation/transparency</td>
                            </tr>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">S10</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">
                                    <xref ref-type="bibr" rid="ref2">Akinbami et al. (2019)</xref>
                                </td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Nigeria (Southwest &#x2013; Oyo, Ondo, Ogun states)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Mixed-methods (survey n&#x00a0;=&#x00a0;595, FGDs n&#x00a0;=&#x00a0;240)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Rural women (crop farming, food processing, NTFP collection, non-farming)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Incentive: PES, biogas, rainwater harvesting; Planning: vegetation zone-based adaptation planning; Forest management: NTFP collection, farming</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Awareness of climate impacts (high); income trends; perceived challenges &amp; opportunities</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Women highly aware of climate impacts; poverty, limited credit, cultural norms constrain entrepreneurship; opportunities in rainwater harvesting, biogas, irrigation, producer organizations</td>
                            </tr>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">S11</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">
                                    <xref ref-type="bibr" rid="ref35">Sharma et al. (2023)</xref>
                                </td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Scotland, UK</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Qualitative (22 semi-structured interviews, document analysis)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Local communities, landowners, investors, NGOs, public sector</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Incentive: tax relief, WCC, voluntary carbon markets, natural capital; Planning: Scottish Forestry Strategy, land use planning; Forest management: FLS retreat from production to regulation, community asset transfer, private investment</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Tree planting increase; land price inflation (30&#x2013;70% above asking); emergence of &#x201c;green lairds&#x201d;; community access challenges</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Rescaling of forest governance to private &amp; non-profit sectors; uneven playing field; communities cannot compete with well-resourced investors; state role shifts from implementation to regulation</td>
                            </tr>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">S12</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">
                                    <xref ref-type="bibr" rid="ref42">Zhu &amp; Lo (2021)</xref>
                                </td>
                                <td align="left" colspan="1" rowspan="1" valign="top">China (Greater Khingan Range &#x2013; &#x201c;Pinetown&#x201d;)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Ethnographic (42 in-depth interviews, 5 FGDs, participatory observation)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Local community members, SOFE workers, NTFP collectors, assemblers, factory managers</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Incentive: NTFP commercialization; Planning: NFCP policy, local forest bureau planning; Forest management: NTFP collection (pinecones, berries, fungi, herbs)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Restorative justice outcomes: recognitional, procedural, distributive (inequity)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">NTFP projects politicized (top-down symbolic); local knowledge ignored; overexploitation due to weak enforcement; benefits uneven: SOFE workers gain more than individual collectors; lack of procedural justice</td>
                            </tr>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">S13</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">
                                    <xref ref-type="bibr" rid="ref31">Rodriguez-Ward et al. (2018)</xref>
                                </td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Peru (Madre de Dios region)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Qualitative (93 interviews, participant observation, multi-level actor mapping)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Local communities, indigenous groups, Brazil nut concessionaires, miners, NGOs, government (regional &amp; national)</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Incentive: REDD+ carbon credits, PES; Planning: regional land use planning (ZEE), REDD+ Working Group; Forest management: forest conservation, SFM, Brazil nut concessions, ecotourism</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Deforestation trends (increasing); actor influence; REDD+ implementation challenges; coalition building</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">REDD+ created multi-stakeholder dialogue but failed to address main drivers (illegal mining, agriculture); lack of coordination across levels; state still central; mistrust of NGOs; polycentric governance not sufficient without strong state authority</td>
                            </tr>
                        </tbody>
                    </table>
                    <table-wrap-foot>
                        <p>Source: Researcher&#x2019;s Process (2026).</p>
                    </table-wrap-foot>
                </table-wrap>
                <table-wrap id="T5" orientation="portrait" position="float">
                    <label>
Table 5. </label>
                    <caption>
                        <title>Synthesis of Key Success Factors and Barriers Across.</title>
                    </caption>
                    <table content-type="article-table" frame="hsides">
                        <thead>
                            <tr>
                                <th align="left" colspan="1" rowspan="1" valign="top">Category</th>
                                <th align="left" colspan="1" rowspan="1" valign="top">Factor</th>
                                <th align="left" colspan="1" rowspan="1" valign="top">Studies (IDs)</th>
                                <th align="left" colspan="1" rowspan="1" valign="top">Key Illustration</th>
                            </tr>
                        </thead>
                        <tbody>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">Success Factors</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Participatory governance &amp; transparent benefit sharing</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">S2, S8, S11</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">IFFDC cooperative (S8): tri-party agreement, reinvestment; Scotland (S11): community asset transfer</td>
                            </tr>
                            <tr>
                                <td colspan="1" rowspan="1"/>
                                <td align="left" colspan="1" rowspan="1" valign="top">Flexible, context-sensitive scheme design</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">S3, S4, S8</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">England (S3): farmers prefer adaptable planting layouts; Brazil (S4): input-based contracts preferred</td>
                            </tr>
                            <tr>
                                <td colspan="1" rowspan="1"/>
                                <td align="left" colspan="1" rowspan="1" valign="top">Trusted, locally embedded advisory support</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">S3, S9, S11</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">England (S3): Woodland Trust trusted over government; Kenya (S9): lack of trusted intermediaries reduced participation</td>
                            </tr>
                            <tr>
                                <td colspan="1" rowspan="1"/>
                                <td align="left" colspan="1" rowspan="1" valign="top">Linking incentives to non-carbon co-benefits</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">S5, S8, S10, S11</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Indonesia (S5): NTFP premium prices reduced emissions; India (S8): carbon revenue funded SDG-related activities</td>
                            </tr>
                            <tr>
                                <td colspan="1" rowspan="1"/>
                                <td align="left" colspan="1" rowspan="1" valign="top">Polycentric governance with subnational coordination</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">S2, S13</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Multi-country (S2): initiatives with multiple levels less likely to expire; Peru (S13): REDD+ Working Group enabled dialogue</td>
                            </tr>
                            <tr>
                                <td align="center" colspan="1" rowspan="1" valign="top">Barriers</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Lack of trust in government &amp; external actors</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">S2, S3, S4, S7, S11, S13</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">England (S3): perceived policy instability; Peru (S13): indigenous distrust of NGOs; Tanzania (S7): higher corruption perception in REDD+ shehia</td>
                            </tr>
                            <tr>
                                <td colspan="1" rowspan="1"/>
                                <td align="left" colspan="1" rowspan="1" valign="top">High transaction costs &amp; insignificant carbon payments</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">S1, S2, S6, S9</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Multi-country (S2): most initiatives not sold credits; Kenya (S9): minimal, irregular payments; Indonesia (S6): indirect costs 10&#x2013;43%</td>
                            </tr>
                            <tr>
                                <td colspan="1" rowspan="1"/>
                                <td align="left" colspan="1" rowspan="1" valign="top">Short-term policy vs long-term tree growth</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">S3, S4, S8, S11</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">England (S3): 3&#x2013;5&#x00a0;year schemes vs tree maturation; Scotland (S11): short-termism inflated land prices</td>
                            </tr>
                            <tr>
                                <td colspan="1" rowspan="1"/>
                                <td align="left" colspan="1" rowspan="1" valign="top">Gender inequities &amp; unequal bargaining power</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">S1, S9, S10</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Kenya (S9): women &gt;70% labour but no asset control; Nigeria (S10): women lack credit &amp; land; Bhutan (S1): gendered differences in priorities ignored</td>
                            </tr>
                            <tr>
                                <td colspan="1" rowspan="1"/>
                                <td align="left" colspan="1" rowspan="1" valign="top">Weak state authority, overlapping mandates, elite capture</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">S2, S7, S12, S13</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Peru (S13): illegal mining unchecked; China (S12): top-down political projects; Tanzania (S7): elite capture in SCCs</td>
                            </tr>
                            <tr>
                                <td colspan="1" rowspan="1"/>
                                <td align="left" colspan="1" rowspan="1" valign="top">Leakage &amp; additionality challenges</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">S1, S5, S7</td>
                                <td align="left" colspan="1" rowspan="1" valign="top">Bhutan (S1): 50% leakage doubles break-even price; Tanzania (S7): leakage to unprotected neighbours; Indonesia (S5): moratorium not apply to communities</td>
                            </tr>
                        </tbody>
                    </table>
                    <table-wrap-foot>
                        <p>Source: Researcher&#x2019;s Process (2026).</p>
                    </table-wrap-foot>
                </table-wrap>
            </sec>
        </sec>
        <sec id="sec10" sec-type="result|discussion">
            <title>3. Result &amp; Discussion</title>
            <sec id="sec11">
                <title>3.1 The Landscape of Evidence: Study Characteristics and Geographic Spread</title>
                <p>The systematic search and screening process yielded 13 eligible studies that met all inclusion criteria: empirical research articles published between 2016 and 2026, written in English, open access, with a focus on local communities and at least one exposure domain (incentive policies, regional planning, or community-based forest management) and one outcome (environmental or socio-economic).</p>
                <p>A total of 13 studies met the inclusion criteria. 
                    <xref ref-type="table" rid="T4">
Table 4</xref> summarises their key characteristics, including geographic location, study design, population, exposure domains, and primary outcomes.</p>
                <p>As shown in 
                    <xref ref-type="table" rid="T4">
Table 4</xref>, the evidence spans 11 countries across three continents: South America (Brazil, Peru), Africa (Kenya, Tanzania, Nigeria), Asia (Bhutan, Indonesia, India, China), and Europe (United Kingdom). Two studies are multi-country 
                    <xref ref-type="bibr" rid="ref20">Luttrell et al. (2018)</xref> covering five nations; 
                    <xref ref-type="bibr" rid="ref31">Rodriguez-Ward et al. (2018)</xref> focused on Peru but with international comparisons. Notably, only three studies originate from temperate developed countries 
                    <xref ref-type="bibr" rid="ref6">Beth et al. (2026)</xref> England; 
                    <xref ref-type="bibr" rid="ref35">Sharma et al. (2023)</xref> Scotland; and 
                    <xref ref-type="bibr" rid="ref13">Delma et al. (2026)</xref> Bhutan, which is developing but with a high-income status in terms of forest governance. The majority (10 studies) are set in tropical developing economies where forest-dependent communities face acute pressures from agriculture, mining, and logging.</p>
                <p>Methodologically, the included studies employ qualitative (
                    <xref ref-type="bibr" rid="ref3">Andrews &amp; Borgerhoff Mulder, 2018</xref>; 
                    <xref ref-type="bibr" rid="ref6">Beth et al., 2026</xref>; 
                    <xref ref-type="bibr" rid="ref24">Morello et al., 2025</xref>; 
                    <xref ref-type="bibr" rid="ref31">Rodriguez-Ward et al., 2018</xref>; 
                    <xref ref-type="bibr" rid="ref35">Sharma et al., 2023</xref>; 
                    <xref ref-type="bibr" rid="ref42">Zhu &amp; Lo, 2021</xref>), mixed-methods (
                    <xref ref-type="bibr" rid="ref2">Akinbami et al., 2019</xref>; 
                    <xref ref-type="bibr" rid="ref13">Delma et al., 2026</xref>; 
                    <xref ref-type="bibr" rid="ref20">Luttrell et al., 2018</xref>; 
                    <xref ref-type="bibr" rid="ref21">Mantey et al., 2024</xref>; 
                    <xref ref-type="bibr" rid="ref39">Tripathy et al., 2025</xref>), and quantitative modeling (
                    <xref ref-type="bibr" rid="ref32">Rossita &amp; Boer, 2025</xref>; 
                    <xref ref-type="bibr" rid="ref36">Suwarno et al., 2018</xref>) designs. No single randomised controlled trial was identified, reflecting the complexity and context-specificity of community-based low-carbon interventions. The geographic and methodological heterogeneity across studies necessitates a thematic rather than statistical synthesis. The following sections therefore organise the evidence around the three core domains of exposure incentives, planning, and forest management before examining cross-cutting success factors, barriers, and governance dynamics.</p>
            </sec>
            <sec id="sec12">
                <title>3.2 How Incentives, Planning, and Forest Management Converge</title>
                <p>Across the 13 studies, each of the three exposure domains (incentive policies, regional planning, community-based forest management) appears in various forms, but their integration is rarely seamless. This section synthesises how these pillars manifest on the ground.</p>
                <p>Incentive policies are the most frequently reported exposure domain (present in all 13 studies). They take multiple forms: direct carbon payments and carbon credits (
                    <xref ref-type="bibr" rid="ref3">Andrews &amp; Borgerhoff Mulder, 2018</xref>; 
                    <xref ref-type="bibr" rid="ref20">Luttrell et al., 2018</xref>; 
                    <xref ref-type="bibr" rid="ref21">Mantey et al., 2024</xref>; 
                    <xref ref-type="bibr" rid="ref32">Rossita &amp; Boer, 2025</xref>; 
                    <xref ref-type="bibr" rid="ref39">Tripathy et al., 2025</xref>), payment for ecosystem services (PES) and agri-environment schemes (
                    <xref ref-type="bibr" rid="ref2">Akinbami et al., 2019</xref>; 
                    <xref ref-type="bibr" rid="ref6">Beth et al., 2026</xref>; 
                    <xref ref-type="bibr" rid="ref24">Morello et al., 2025</xref>), tax relief and natural capital markets (
                    <xref ref-type="bibr" rid="ref35">Sharma et al., 2023</xref>), forest moratoriums with premium prices (
                    <xref ref-type="bibr" rid="ref36">Suwarno et al., 2018</xref>), and NTFP commercialisation (
                    <xref ref-type="bibr" rid="ref42">Zhu &amp; Lo, 2021</xref>). The two Kenyan projects (
                    <xref ref-type="bibr" rid="ref21">Mantey et al., 2024</xref>) used output-based payments tied to verified emission reductions, but farmers received minimal and irregular sums, undermining motivation. In contrast, the Indian cooperative model (
                    <xref ref-type="bibr" rid="ref39">Tripathy et al., 2025</xref>) successfully sold VERRA-certified credits and distributed revenues via a transparent tri-party agreement. A key insight is that the presence of an incentive does not guarantee effectiveness; its design (input-based vs. output-based, payment level, timing, and transaction costs) strongly moderates outcomes (
                    <xref ref-type="bibr" rid="ref21">Mantey et al., 2024</xref>; 
                    <xref ref-type="bibr" rid="ref24">Morello et al., 2025</xref>; 
                    <xref ref-type="bibr" rid="ref32">Rossita &amp; Boer, 2025</xref>).</p>
                <p>Regional and spatial planning appears in 10 studies, often as a framework for allocating land uses and mediating conflicts. In Peru (
                    <xref ref-type="bibr" rid="ref31">Rodriguez-Ward et al., 2018</xref>), the Regional Government&#x2019;s Economic-Ecological Zoning (ZEE) and the REDD+ Working Group created a multi-stakeholder platform, but planning remained disconnected from powerful mining and agriculture sectors. In Indonesia (
                    <xref ref-type="bibr" rid="ref32">Rossita &amp; Boer, 2025</xref>; 
                    <xref ref-type="bibr" rid="ref36">Suwarno et al., 2018</xref>), land allocation based on forest functions (production, protection, conservation) was central to NDC mitigation planning, yet implementation suffered from overlapping mandates and weak enforcement. In Scotland (
                    <xref ref-type="bibr" rid="ref35">Sharma et al., 2023</xref>), the Scottish Forestry Strategy and post-Brexit land use policies shifted planning responsibilities from the state to private and community actors, producing an &#x201c;uneven playing field&#x201d;. In Tanzania (
                    <xref ref-type="bibr" rid="ref3">Andrews &amp; Borgerhoff Mulder, 2018</xref>), village-level High Protection Areas (HPAs) and CoFMAs provided a formal planning mechanism, but leakage to neighbouring areas remained high.</p>
                <p>Community-based forest management is the operational anchor in 12 studies. Forms include Community Forest Management Groups (CFMGs) in Bhutan (
                    <xref ref-type="bibr" rid="ref13">Delma et al., 2026</xref>), CoFMAs in Tanzania (
                    <xref ref-type="bibr" rid="ref3">Andrews &amp; Borgerhoff Mulder, 2018</xref>), Primary Farm Forestry Cooperative Societies (PFFCS) in India (
                    <xref ref-type="bibr" rid="ref39">Tripathy et al., 2025</xref>), sustainable agricultural land management (SALM) in Kenya (
                    <xref ref-type="bibr" rid="ref21">Mantey et al., 2024</xref>), agroforestry in England (
                    <xref ref-type="bibr" rid="ref6">Beth et al., 2026</xref>) and Brazil (
                    <xref ref-type="bibr" rid="ref24">Morello et al., 2025</xref>), and NTFP collection in China (
                    <xref ref-type="bibr" rid="ref42">Zhu &amp; Lo, 2021</xref>) and Nigeria (
                    <xref ref-type="bibr" rid="ref2">Akinbami et al., 2019</xref>). A consistent finding is that functioning local institutions are a prerequisite for any carbon or incentive mechanism to work (
                    <xref ref-type="bibr" rid="ref3">Andrews &amp; Borgerhoff Mulder, 2018</xref>; 
                    <xref ref-type="bibr" rid="ref13">Delma et al., 2026</xref>; 
                    <xref ref-type="bibr" rid="ref39">Tripathy et al., 2025</xref>). However, even where CFMGs exist, they may lack carbon rights, technical capacity, or financial resources to engage with carbon markets (
                    <xref ref-type="bibr" rid="ref13">Delma et al., 2026</xref>; 
                    <xref ref-type="bibr" rid="ref20">Luttrell et al., 2018</xref>; 
                    <xref ref-type="bibr" rid="ref32">Rossita &amp; Boer, 2025</xref>).</p>
                <p>The ways in which these three pillars interact or fail to interact determine the outcomes reported in the studies. The next section distils the recurring conditions that enable success and those that perpetuate failure.</p>
            </sec>
            <sec id="sec13">
                <title>3.3 What Works, What Doesn&#x2019;t: Success Factors and Persistent Barriers</title>
                <p>Across the 13 studies, a set of recurring success factors and barriers emerges consistently, cutting across geographic and methodological contexts. 
                    <xref ref-type="table" rid="T5">
Table 5</xref> synthesises these factors, illustrating the conditions that enable or obstruct the integration of incentives, planning, and community-based forest management for low-carbon development.</p>
                <p>As 
                    <xref ref-type="table" rid="T5">
Table 5</xref> shows, the most frequently cited success factor is participatory governance and transparent benefit sharing, exemplified by the IFFDC cooperative in India (
                    <xref ref-type="bibr" rid="ref39">Tripathy et al., 2025</xref>) where a tri-party agreement and reinvestment of carbon revenues into community assets built trust and sustained participation. Flexible, context-sensitive scheme design was highlighted in England (
                    <xref ref-type="bibr" rid="ref6">Beth et al., 2026</xref>) and Brazil (
                    <xref ref-type="bibr" rid="ref24">Morello et al., 2025</xref>), where rigid planting densities and short contract durations discouraged adoption. Trusted, locally embedded advisory support emerged as a critical enabler: in England (
                    <xref ref-type="bibr" rid="ref6">Beth et al., 2026</xref>), farmers preferred the Woodland Trust over government agencies; in Kenya (
                    <xref ref-type="bibr" rid="ref21">Mantey et al., 2024</xref>), the absence of such intermediaries reduced participation.</p>
                <p>Conversely, lack of trust in government and external actors was the most pervasive barrier, reported in six studies (
                    <xref ref-type="bibr" rid="ref3">Andrews &amp; Borgerhoff Mulder, 2018</xref>; 
                    <xref ref-type="bibr" rid="ref6">Beth et al., 2026</xref>; 
                    <xref ref-type="bibr" rid="ref20">Luttrell et al., 2018</xref>; 
                    <xref ref-type="bibr" rid="ref24">Morello et al., 2025</xref>; 
                    <xref ref-type="bibr" rid="ref31">Rodriguez-Ward et al., 2018</xref>; 
                    <xref ref-type="bibr" rid="ref35">Sharma et al., 2023</xref>). In Peru (
                    <xref ref-type="bibr" rid="ref31">Rodriguez-Ward et al., 2018</xref>), indigenous federations distrusted NGOs as potential carbon intermediaries; in Tanzania (
                    <xref ref-type="bibr" rid="ref3">Andrews &amp; Borgerhoff Mulder, 2018</xref>), REDD-ready shehia were perceived as more corrupt than non-REDD ones. High transaction costs and insignificant carbon payments undermined financial viability across multiple contexts (
                    <xref ref-type="bibr" rid="ref13">Delma et al., 2026</xref>; 
                    <xref ref-type="bibr" rid="ref20">Luttrell et al., 2018</xref>; 
                    <xref ref-type="bibr" rid="ref21">Mantey et al., 2024</xref>; 
                    <xref ref-type="bibr" rid="ref32">Rossita &amp; Boer, 2025</xref>). The multi-country REDD+ study (
                    <xref ref-type="bibr" rid="ref20">Luttrell et al., 2018</xref>) found that most initiatives had not sold credits by 2015, and many organisations bore costs without compensation. In Kenya (
                    <xref ref-type="bibr" rid="ref21">Mantey et al., 2024</xref>), payments were minimal and irregular, failing to cover opportunity costs.</p>
                <p>Short-term policy horizons versus long-term tree growth created a fundamental mismatch: schemes lasted 3&#x2013;5&#x00a0;years while trees take decades to mature (
                    <xref ref-type="bibr" rid="ref6">Beth et al., 2026</xref>; 
                    <xref ref-type="bibr" rid="ref24">Morello et al., 2025</xref>; 
                    <xref ref-type="bibr" rid="ref39">Tripathy et al., 2025</xref>). In Scotland (
                    <xref ref-type="bibr" rid="ref35">Sharma et al., 2023</xref>), short-termism inflated land prices by 30&#x2013;70%, pricing out communities. Gender inequities were starkly documented in Kenya (
                    <xref ref-type="bibr" rid="ref21">Mantey et al., 2024</xref>) and Nigeria (
                    <xref ref-type="bibr" rid="ref2">Akinbami et al., 2019</xref>): women performed most of the labour but lacked control over land, assets, and carbon revenues. In Bhutan (
                    <xref ref-type="bibr" rid="ref13">Delma et al., 2026</xref>), women&#x2019;s priorities (NTFP, water) differed from men&#x2019;s (timber), yet carbon pathway design ignored this divergence.</p>
                <p>Weak state authority, overlapping mandates, and elite capture were evident in Peru (
                    <xref ref-type="bibr" rid="ref31">Rodriguez-Ward et al., 2018</xref>), where illegal mining continued because regional government lacked sanctioning power, and in China (
                    <xref ref-type="bibr" rid="ref42">Zhu &amp; Lo, 2021</xref>), where top-down NTFP projects served as political showcases while local initiatives received no support. Leakage and additionality challenges were repeatedly noted: in Bhutan (
                    <xref ref-type="bibr" rid="ref13">Delma et al., 2026</xref>), assuming 50% leakage doubled the carbon break-even price; in Tanzania (
                    <xref ref-type="bibr" rid="ref3">Andrews &amp; Borgerhoff Mulder, 2018</xref>), leakage occurred from REDD+ shehia to unprotected neighbours.</p>
                <p>These barriers are not merely technical or financial; they reflect deeper governance asymmetries that are analysed in the following section.</p>
            </sec>
            <sec id="sec14">
                <title>3.4 The Unseen Architecture: Governance Challenges Across Scales</title>
                <p>Beneath the surface of individual projects lie structural governance challenges that shape who decide, who bears risk, and who benefits. Three interconnected dimensions recur across the 13 studies: multilevel governance gaps, power asymmetries, and procedural and recognitional injustices.</p>
                <p>

                    <bold>Multilevel and polycentric governance &#x2013; promise and hollow core</bold>
                </p>
                <p>Several studies explicitly draw on polycentric governance theory (
                    <xref ref-type="bibr" rid="ref25">Ostrom, 2017</xref>) to analyse REDD+ and landscape approaches. The multi-country study (
                    <xref ref-type="bibr" rid="ref20">Luttrell et al., 2018</xref>) found that initiatives involving organisations from international, national, subnational, and local levels were more robust, but a &#x201c;hollow core&#x201d; the absence of village-level institutions was common (13 out of 22 initiatives lacked local organisation involvement). In Peru (
                    <xref ref-type="bibr" rid="ref31">Rodriguez-Ward et al., 2018</xref>), the REDD+ Working Group created a space for dialogue, but indigenous federations operated a parallel indigenous REDD+ working group, and local governments (district mayors) were excluded. In Tanzania (
                    <xref ref-type="bibr" rid="ref3">Andrews &amp; Borgerhoff Mulder, 2018</xref>), SCCs existed but community members perceived them as corrupt and unaccountable.</p>
                <p>In Scotland (
                    <xref ref-type="bibr" rid="ref35">Sharma et al., 2023</xref>), the rescaling of forest governance from state to private and community actors produced an uneven playing field: &#x201c;green lairds&#x201d; (wealthy investors) could buy land at 30&#x2013;70% above asking price, while communities could not compete. The study argues that polycentric solutions require a strong state to set rules and redistribute benefits a finding that challenges the &#x201c;state-denialist&#x201d; strand of polycentric theory.</p>
                <p>

                    <bold>Power asymmetries: who decides, who bears risk, who benefits?</bold>
                </p>
                <p>Power asymmetries operate vertically (between levels) and horizontally (between actor types). In Kenya (
                    <xref ref-type="bibr" rid="ref21">Mantey et al., 2024</xref>), project developers and carbon technical providers controlled data, methodologies, and benefit distribution; farmers had no copy of contracts and lacked &#x201c;boldness to ask&#x201d;. In Peru (
                    <xref ref-type="bibr" rid="ref31">Rodriguez-Ward et al., 2018</xref>), NGOs and private companies (e.g., BAM) were the main champions of REDD+, while land users (miners, farmers) were excluded. In China (
                    <xref ref-type="bibr" rid="ref42">Zhu &amp; Lo, 2021</xref>), the state-owned forestry enterprise (SOFE) decided NTFP projects based on political symbolism, ignoring local knowledge.</p>
                <p>Risk transfer is a consistent pattern: upstream actors (carbon buyers, donors) shift performance risks downstream to smallholders and communities. In Kenya (
                    <xref ref-type="bibr" rid="ref21">Mantey et al., 2024</xref>), output-based contracts made farmers bear the risk of crop failure due to fall armyworm, yet pesticide use was restricted. In Indonesia (
                    <xref ref-type="bibr" rid="ref32">Rossita &amp; Boer, 2025</xref>), transaction costs (4&#x2013;19% of total) were borne by private companies, reducing their incentive to invest. In Bhutan (
                    <xref ref-type="bibr" rid="ref13">Delma et al., 2026</xref>), CFMGs would bear leakage and transaction costs unless compensated.</p>
                <p>

                    <bold>Procedural and recognitional injustices: local knowledge, gender, and the politics of voice</bold>
                </p>
                <p>Drawing on restorative justice theory, the China study (
                    <xref ref-type="bibr" rid="ref42">Zhu &amp; Lo, 2021</xref>) reveals that NTFP management suffered from recognitional injustice (top-down decisions ignoring local knowledge), procedural injustice (no public consultation; experts excluded), and distributive injustice (SOFE workers gained more than individual collectors). In Brazil (
                    <xref ref-type="bibr" rid="ref24">Morello et al., 2025</xref>), smallholders were not involved in designing PES contracts, leading them to prefer input-based over output-based schemes because they feared neighbours&#x2019; actions would affect their compliance.</p>
                <p>Gender is a cross-cutting recognitional issue. In Kenya (
                    <xref ref-type="bibr" rid="ref21">Mantey et al., 2024</xref>) and Nigeria (
                    <xref ref-type="bibr" rid="ref2">Akinbami et al., 2019</xref>), women&#x2019;s labour and knowledge are essential for project implementation, but women are not recognised as decision-makers. In Bhutan (
                    <xref ref-type="bibr" rid="ref13">Delma et al., 2026</xref>), women&#x2019;s priorities (NTFP, water) differed from men&#x2019;s (timber), yet carbon pathway design focused on timber foregone.</p>
                <p>The severity and manifestation of these governance challenges are not uniform; they are moderated by contextual factors such as land tenure, gender norms, and institutional history, to which the next section turns.</p>
            </sec>
            <sec id="sec15">
                <title>3.5 When Context Bends the Curve: Moderating Factors</title>
                <p>Contextual factors do not merely influence outcomes they fundamentally reshape the causal pathways between interventions and results. The 13 studies identify several key moderators.</p>
                <p>Land tenure security and carbon rights appear as prerequisites for investment and participation. In Bhutan (
                    <xref ref-type="bibr" rid="ref13">Delma et al., 2026</xref>), CFMGs manage forests but do not own land or carbon rights; the lack of clarity on carbon ownership was a major barrier. In Scotland (
                    <xref ref-type="bibr" rid="ref35">Sharma et al., 2023</xref>), tenant farmers with short leases could not commit to tree planting. In Peru (
                    <xref ref-type="bibr" rid="ref31">Rodriguez-Ward et al., 2018</xref>), overlapping land titles and concessions (legacies of incomplete decentralisation) made REDD+ certification impossible. In England (
                    <xref ref-type="bibr" rid="ref6">Beth et al., 2026</xref>), farmers on tenanted land were excluded from agroforestry schemes unless landlords agreed.</p>
                <p>Gender norms and intra-household bargaining power strongly moderate benefit distribution. In Kenya (
                    <xref ref-type="bibr" rid="ref21">Mantey et al., 2024</xref>), women&#x2019;s participation rates (&gt;70%) did not translate into control over benefits because cultural norms assign cattle and land to men. The study calls for &#x201c;gender-sensitive participatory project design&#x201d; and targeting women&#x2019;s collective action. In Nigeria (
                    <xref ref-type="bibr" rid="ref2">Akinbami et al., 2019</xref>), women&#x2019;s entrepreneurship was constrained by lack of credit, land ownership, and cultural dependency on government.</p>
                <p>Institutional capacity and trust vary widely. In Peru (
                    <xref ref-type="bibr" rid="ref31">Rodriguez-Ward et al., 2018</xref>), regional government suffered from &#x201c;revolving door&#x201d; personnel, loss of institutional memory, and weak sanctioning power. In England (
                    <xref ref-type="bibr" rid="ref6">Beth et al., 2026</xref>), farmers&#x2019; distrust of government was rooted in past scheme failures and political instability (e.g., Brexit). In Tanzania (
                    <xref ref-type="bibr" rid="ref3">Andrews &amp; Borgerhoff Mulder, 2018</xref>), trust in SCCs was lower in REDD-ready shehia, indicating that external interventions can unintentionally erode social capital.</p>
                <p>Market conditions and policy stability moderate financial viability. In Bhutan (
                    <xref ref-type="bibr" rid="ref13">Delma et al., 2026</xref>), carbon break-even price was highly sensitive to carbon market prices (assumed USD 35/MgCO
                    <sub>2</sub>). In India (
                    <xref ref-type="bibr" rid="ref39">Tripathy et al., 2025</xref>), success depended on VERRA certification and access to international buyers. In England (
                    <xref ref-type="bibr" rid="ref6">Beth et al., 2026</xref>), farmers worried about the collapse of end-markets for apples and nuts, citing historical examples. In Indonesia (
                    <xref ref-type="bibr" rid="ref32">Rossita &amp; Boer, 2025</xref>), the discount rate used in life-cycle cost analysis (5%) significantly affected total cost estimates, with sensitivity analyses showing 13&#x2013;41% variation.</p>
                <p>Political regime type shapes the space for participation. In China (
                    <xref ref-type="bibr" rid="ref42">Zhu &amp; Lo, 2021</xref>), the authoritarian context allowed top-down imposition of NTFP projects without consultation, and local officials feared career consequences if they resisted. In democratic settings (e.g., Scotland, England, Peru), civil society and indigenous groups had more avenues to voice dissent, though power asymmetries persisted.</p>
                <p>Across all these moderators, one tool digital technology is increasingly seen as a potential game-changer, but its current application falls far short of its promise.</p>
            </sec>
            <sec id="sec16">
                <title>3.6 Digital Tools, Data Gaps, and Methodological Reflections</title>
                <p>Only one study (
                    <xref ref-type="bibr" rid="ref21">Mantey et al., 2024</xref>) explicitly examined the role of digital tools in smallholder agricultural carbon projects (SACPs), while others mentioned data gaps but not digital solutions. In Kenya (
                    <xref ref-type="bibr" rid="ref21">Mantey et al., 2024</xref>), digital tools were used for data collection and reporting (mobile apps, SMS, GPS farm tracking) and stakeholder coordination among top-level actors. However, their use was confined to the SLM component; they were not applied to carbon credit marketing, benefit distribution, or participatory feedback. As a result, digital tools reinforced upward accountability (monitoring of farmers by project developers) but did not enhance farmers&#x2019; bargaining power or access to information.</p>
                <p>The study (
                    <xref ref-type="bibr" rid="ref21">Mantey et al., 2024</xref>) notes that digital tools have untapped potential to reduce transaction costs, increase transparency, and enable grievance mechanisms. For instance, blockchain-based carbon credit registries could provide real-time benefit-sharing data, and mobile payment systems could reduce intermediaries. However, without investment in local capacity and inclusive design, digital tools risk exacerbating existing inequalities, especially for women who have lower digital literacy.</p>
                <p>Data gaps in the broader literature are substantial. Only two studies (
                    <xref ref-type="bibr" rid="ref32">Rossita &amp; Boer, 2025</xref>; 
                    <xref ref-type="bibr" rid="ref36">Suwarno et al., 2018</xref>) use quantitative modelling, and neither includes participatory validation. Longitudinal data on carbon outcomes beyond project cycles are absent. Transaction costs are rarely reported in detail 
                    <xref ref-type="bibr" rid="ref20">Luttrell et al. (2018)</xref> and 
                    <xref ref-type="bibr" rid="ref32">Rossita &amp; Boer (2025)</xref> are exceptions. Gender-disaggregated data are missing from most studies 
                    <xref ref-type="bibr" rid="ref21">Mantey et al. (2024)</xref> and 
                    <xref ref-type="bibr" rid="ref2">Akinbami et al. (2019)</xref> are exceptions. No study reports on the long-term permanence of carbon credits or the fate of communities after project withdrawal.</p>
                <p>Methodological limitations of the included studies affect generalisability. Qualitative studies (n&#x00a0;=&#x00a0;6) provide rich context but cannot quantify impact. Mixed-methods studies (n&#x00a0;=&#x00a0;5) are stronger but often lack statistical power. Agent-based models (
                    <xref ref-type="bibr" rid="ref36">Suwarno et al., 2018</xref>) and cost models (
                    <xref ref-type="bibr" rid="ref32">Rossita &amp; Boer, 2025</xref>) rely on assumptions that may not hold across scales. Publication bias (over-reporting of positive outcomes) cannot be ruled out, although several studies (
                    <xref ref-type="bibr" rid="ref3">Andrews &amp; Borgerhoff Mulder, 2018</xref>; 
                    <xref ref-type="bibr" rid="ref20">Luttrell et al., 2018</xref>; 
                    <xref ref-type="bibr" rid="ref21">Mantey et al., 2024</xref>; 
                    <xref ref-type="bibr" rid="ref42">Zhu &amp; Lo, 2021</xref>) report negative or mixed findings.</p>
                <p>Despite these limitations, the synthesis offers robust theoretical insights that extend beyond the individual cases.</p>
            </sec>
            <sec id="sec17">
                <title>3.7 Toward a Richer Theoretical Understanding</title>
                <p>The findings of this review engage with and extend several theoretical frameworks used in the original studies.</p>
                <p>Polycentric governance theory (
                    <xref ref-type="bibr" rid="ref25">Ostrom, 2017</xref>) is explicitly invoked in 
                    <xref ref-type="bibr" rid="ref20">Luttrell et al. (2018)</xref> and 
                    <xref ref-type="bibr" rid="ref31">Rodriguez-Ward et al. (2018)</xref>. The evidence supports the idea that multiple centres of decision-making can enhance resilience, but it also reveals a central role for the state that polycentric theory sometimes downplays. In Peru (
                    <xref ref-type="bibr" rid="ref31">Rodriguez-Ward et al., 2018</xref>), the state remained the only actor capable of controlling illegal mining; in Scotland (
                    <xref ref-type="bibr" rid="ref35">Sharma et al., 2023</xref>), state retreat produced inequities; in Indonesia (
                    <xref ref-type="bibr" rid="ref36">Suwarno et al., 2018</xref>), the moratorium was ineffective without state enforcement. The review suggests a qualified polycentrism: nested governance works best when higher-level authorities set binding rules and redistribute resources to lower levels.</p>
                <p>Principal-agent theory and bargaining power theory are used in 
                    <xref ref-type="bibr" rid="ref21">Mantey et al. (2024)</xref> to analyse governance challenges in agricultural carbon projects. The layered principal-agent relationships in the carbon credit component (buyers &#x2192; project developers &#x2192; technical providers &#x2192; field managers &#x2192; farmers) create information asymmetries and shift risk downstream. Bargaining power is highly asymmetrical: upstream actors control finance, certification, and data infrastructure, while downstream actors have limited alternatives. The study (
                    <xref ref-type="bibr" rid="ref21">Mantey et al., 2024</xref>) recommends using digital tools for &#x201c;shared project planning, transparent benefit distribution, and feedback&#x201d; to rebalance incentives.</p>
                <p>Restorative justice theory is applied in 
                    <xref ref-type="bibr" rid="ref42">Zhu &amp; Lo (2021)</xref> to evaluate NTFP projects in China. The framework&#x2019;s three tenets &#x2013; recognitional, procedural, and distributive justice reveal that political symbolism overrides local needs, that consultation is absent, and that benefits flow to state employees rather than individual collectors. This framework could be extended to other contexts (e.g., REDD+ resettlement, carbon forestry benefit-sharing) to diagnose inequities.</p>
                <p>Rescaling theory (from critical geography) is central to 
                    <xref ref-type="bibr" rid="ref35">Sharma et al. (2023)</xref>, which traces how Scottish forest governance has shifted from state implementation to regulation, and how private and community actors have been brought in on an uneven playing field. The concept of &#x201c;glocal woodlands&#x201d; captures the entanglement of global carbon markets and local land use decisions. The study argues that rescaling is not a zero-sum transfer of power but a reconfiguration that requires new accountability mechanisms.</p>
                <p>Cultural multilevel selection (cMLS) theory is used in 
                    <xref ref-type="bibr" rid="ref3">Andrews &amp; Borgerhoff Mulder (2018)</xref> to explore how cooperative institutions for forest management might spread under REDD+. The authors apply the Price equation to show that group-level benefits can favour the spread of costly conservation norms, but leakage, elite capture, and motivational crowding can impede this process. The Pemba case provides a real-world testbed for cMLS predictions.</p>
                <p>Human ecology theory underpins 
                    <xref ref-type="bibr" rid="ref2">Akinbami et al. (2019)</xref>, which examines the feedback loops between climate impacts, livelihood activities, and ecosystem degradation. The study&#x2019;s policy recommendations rainwater harvesting, biogas, irrigation, and producer organisations are grounded in the idea of sustainable co-evolution between social systems and ecosystems.</p>
                <p>Collectively, these theoretical lenses converge on a central insight: technical interventions (carbon credits, planting targets, digital monitoring) cannot succeed without addressing the political, social, and institutional contexts in which they are embedded.</p>
            </sec>
        </sec>
        <sec id="sec18" sec-type="conclusion">
            <title>4. Conclusion</title>
            <p>This review confirms that integrating incentive policies, regional planning, and community-based forest management can reduce carbon emissions and improve livelihoods when designed with participatory governance, transparent benefit-sharing, and long-term flexibility. However, persistent barriers distrust in government, high transaction costs, gender inequities, weak state authority, and leakage consistently undermine outcomes. Contextual factors such as land tenure, gender norms, and institutional capacity strongly moderate success. To achieve equitable low-carbon development, policies must move beyond technical fixes, address power asymmetries, and place local communities at the center of decision-making and benefit distribution.</p>
            <sec id="sec19">
                <title>4.1 Recommendation</title>
                <p>Policymakers and project designers should prioritize flexible, long-term incentive schemes that combine carbon payments with upfront support to reduce risk for smallholders, alongside investments in transparent benefit-sharing mechanisms and trusted, locally embedded advisory services. To address governance asymmetries, states must strengthen land tenure security, clarify carbon rights, and enforce cross-sectoral coordination between agriculture, mining, and forestry agencies. Gender-responsive approaches including joint land titles, women-only savings groups, and targeted capacity building are essential to ensure that women&#x2019;s labor translates into decision-making power and equitable benefit distribution. Digital tools should be expanded beyond monitoring to support participatory planning, real-time payment distribution, and grievance feedback. Finally, future interventions must be co-designed with local communities, piloted at jurisdictional scales, and evaluated using longitudinal, gender-disaggregated data to fill critical evidence gaps.</p>
            </sec>
        </sec>
        <sec id="sec20">
            <title>Ethical approval and consent to participate</title>
            <p>This study is a systematic literature review that does not involve the collection of primary data from humans, animals, or biological specimens. All data used in this review were derived from previously published scientific articles that are openly accessible (open access). Therefore, no approval from a research ethics committee (ethical approval) nor informed consent from participants is required. This research has been conducted in accordance with the ethical principles of scientific publication, including avoiding plagiarism, properly citing all sources, and not manipulating results or interpretations.</p>
        </sec>
    </body>
    <back>
        <sec id="sec23" sec-type="data-availability">
            <title>Data availability</title>
            <p>The PRISMA 2020 checklist, PRISMA flow diagram, study extraction table, and the MMAT assessment raw data underlying this systematic literature review have been deposited in the Zenodo repository and are publicly accessible at: 
                <ext-link ext-link-type="uri" xlink:href="https://doi.org/10.5281/zenodo.20414873">https://doi.org/10.5281/zenodo.20414873</ext-link> (
                <xref ref-type="bibr" rid="ref33">Saiyuli et al., 2026</xref>).</p>
            <p>The repository includes the following supplementary files:</p>
            <p>Supplementary Document 1: PRISMA 2020 checklist.</p>
            <p>Supplementary Document 2: Data extraction form.</p>
            <p>Supplementary Document 3: MMAT Assessment.</p>
            <p>All data are available under the terms of the 
                <ext-link ext-link-type="uri" xlink:href="https://creativecommons.org/publicdomain/zero/1.0/deed.en">Creative Commons Zero v1.0 Universal</ext-link>
            </p>
        </sec>
        <ack>
            <title>Acknowledgments</title>
            <p>The authors would like to express their sincere gratitude to the Indonesia Endowment Fund for Education (LPDP) for their generous financial support throughout this research. Special thanks go to all co-authors for their valuable contributions to the conceptualization, data analysis, and manuscript revision. Finally, we thank the researchers whose published studies were included in this systematic review.</p>
        </ack>
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