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resumen

Resumen
Agricultural expansion into subtropical and tropical forests causes major environmental damage, but its wider social impacts often remain hidden. Forest-dependent smallholders are particularly strongly impacted, as they crucially rely on forest resources, are typically poor, and often lack institutional support. Our goal was to assess forest-smallholder dynamics in relation to expanding commodity agriculture. Using high-resolution satellite images across [ver mas...]
dc.contributor.authorLevers, Christian
dc.contributor.authorRomero-Muñoz, Alfredo
dc.contributor.authorBaumann, Matthias
dc.contributor.authorDe Marzo, Teresa
dc.contributor.authorFernandez, Pedro David
dc.contributor.authorGasparri, Nestor Ignacio
dc.contributor.authorGavier Pizarro, Gregorio Ignacio
dc.contributor.authorde Waroux, Yann le Polain
dc.contributor.authorPiquer Rodríguez, María
dc.contributor.authorSemper Pascual, Asunción
dc.contributor.authorKuemmerle, Tobias
dc.date.accessioned2021-11-04T13:56:49Z
dc.date.available2021-11-04T13:56:49Z
dc.date.issued2021-11-02
dc.identifier.issn0027-8424
dc.identifier.issn1091-6490 (online)
dc.identifier.otherhttps://doi.org/10.1073/pnas.2100436118
dc.identifier.urihttp://hdl.handle.net/20.500.12123/10683
dc.identifier.urihttps://www.pnas.org/content/118/44/e2100436118
dc.description.abstractAgricultural expansion into subtropical and tropical forests causes major environmental damage, but its wider social impacts often remain hidden. Forest-dependent smallholders are particularly strongly impacted, as they crucially rely on forest resources, are typically poor, and often lack institutional support. Our goal was to assess forest-smallholder dynamics in relation to expanding commodity agriculture. Using high-resolution satellite images across the entire South American Gran Chaco, a global deforestation hotspot, we digitize individual forest-smallholder homesteads (n = 23,954) and track their dynamics between 1985 and 2015. Using a Bayesian model, we estimate 28,125 homesteads in 1985 and show that forest smallholders occupy much larger forest areas (>45% of all Chaco forests) than commonly appreciated and increasingly come into conflict with expanding commodity agriculture (18% of homesteads disappeared; n = 5,053). Importantly, we demonstrate an increasing ecological marginalization of forest smallholders, including a substantial forest resource base loss in all Chaco countries and an increasing confinement to drier regions (Argentina and Bolivia) and less accessible regions (Bolivia). Our transferable and scalable methodology puts forest smallholders on the map and can help to uncover the land-use conflicts at play in many deforestation frontiers across the globe. Such knowledge is essential to inform policies aimed at sustainable land use and supply chains.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherNational Academy of Scienceses_AR
dc.relationinfo:eu-repograntAgreement/INTA/PNNAT-1128052/AR./Desarrollo de herramientas y validación de metodologías para el estudio, gestión y manejo de los sistemas productivos, contribuyendo a su resiliencia socio agroambiental.es_AR
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.sourceProceedings of the National Academy of Sciences (PNAS) 118 (44) : e2100436118 (2021)es_AR
dc.subjectDeforestationeng
dc.subjectLivelihoodseng
dc.subjectDeforestaciónes_AR
dc.subjectArgentinaes_AR
dc.subjectMedios de Vida
dc.subject.otherSubtropical and Tropical dry Forests and Savannahseng
dc.subject.otherCommodity Frontierseng
dc.subject.otherSmall Scale Agricultureeng
dc.subject.otherAgricultura en Pequeña Escala
dc.titleAgricultural expansion and the ecological marginalization of forest-dependent peoplees_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.description.origenInstituto de Investigación Animal del Chaco Semiáridoes_AR
dc.description.filFil: Levers, Christian. Humboldt-Universität zu Berlin. Geography Department; Alemaniaes_AR
dc.description.filFil: Levers, Christian. University of British Columbia. Institute for Resources, Environment and Sustainability; Canadáes_AR
dc.description.filFil: Levers, Christian. Vrije Universiteit Amsterdam. Department of Environmental Geography. Institute for Environmental Studies; Países Bajoses_AR
dc.description.filFil: Romero Muñoz, Alfredo. Humboldt-Universität zu Berlin. Geography Department; Alemaniaes_AR
dc.description.filFil: Baumann, Matthias. Humboldt-Universität zu Berlin. Geography Department; Alemaniaes_AR
dc.description.filFil: De Marzo, Teresa. Humboldt-Universität zu Berlin. Geography Department; Alemaniaes_AR
dc.description.filFil: Fernandez, Pedro David. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación Animal del Chaco Semiárido; Argentinaes_AR
dc.description.filFil: Fernandez, Pedro David. Universidad Nacional de Tucumán. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ecología Regional; Argentinaes_AR
dc.description.filFil: Gasparri, Nestor Ignacio. Universidad Nacional de Tucumán. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ecología Regional; Argentinaes_AR
dc.description.filFil: Gavier Pizarro, Gregorio Ignacio. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Recursos Biológicos; Argentinaes_AR
dc.description.filFil: de Waroux, Yann le Polain. McGill University. Institute for the Study of International Development. Department of Geography; Canadáes_AR
dc.description.filFil: Piquer Rodríguez, María. Humboldt-Universität zu Berlin. Geography Department; Alemaniaes_AR
dc.description.filFil: Piquer Rodríguez, María. Universidad Nacional de Tucumán. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ecología Regional; Argentinaes_AR
dc.description.filFil: Piquer Rodríguez, María. Freie Univeristät Berlin. Latinamerika-Institut; Alemaniaes_AR
dc.description.filFil: Semper Pascual, Asunción. Humboldt-Universität zu Berlin. Geography Department; Alemaniaes_AR
dc.description.filFil: Semper Pascual, Asunción. Norwegian University of Life Sciences. Faculty of Environmental Sciences and Natural Resource Management; Noruegaes_AR
dc.description.filFil: Kuemmerle, Tobias. Humboldt-Universität zu Berlin. Geography Department; Alemaniaes_AR
dc.description.filFil: Kuemmerle, Tobias. Humboldt-University Berlin. Integrative Research Institute on Transformations in Human-Environment Systems; Alemaniaes_AR
dc.subtypecientifico


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