Carbon emissions from agricultural expansion and intensification in the Chaco
Carbon emissions from land‐use changes in tropical dry forest systems are poorly understood, although they are likely globally significant. The South American Chaco has recently emerged as a hot spot of agricultural expansion and intensification, as cattle ranching and soybean cultivation expand int...
| Main Authors: | , , , , , , |
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| Format: | Artículo |
| Language: | Inglés |
| Published: |
Wiley
2019
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| Online Access: | https://onlinelibrary.wiley.com/doi/abs/10.1111/gcb.13521 http://hdl.handle.net/20.500.12123/4220 https://doi.org/10.1111/gcb.13521 |
| _version_ | 1855483390133796864 |
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| author | Baumann, Matthias Gasparri, Néstor Ignacio Piquer Rodriguez, María Gavier Pizarro, Gregorio Ignacio Griffiths, Patrick Hostert, Patrick Kuemmerle, Tobias |
| author_browse | Baumann, Matthias Gasparri, Néstor Ignacio Gavier Pizarro, Gregorio Ignacio Griffiths, Patrick Hostert, Patrick Kuemmerle, Tobias Piquer Rodriguez, María |
| author_facet | Baumann, Matthias Gasparri, Néstor Ignacio Piquer Rodriguez, María Gavier Pizarro, Gregorio Ignacio Griffiths, Patrick Hostert, Patrick Kuemmerle, Tobias |
| author_sort | Baumann, Matthias |
| collection | INTA Digital |
| description | Carbon emissions from land‐use changes in tropical dry forest systems are poorly understood, although they are likely globally significant. The South American Chaco has recently emerged as a hot spot of agricultural expansion and intensification, as cattle ranching and soybean cultivation expand into forests, and as soybean cultivation replaces grazing lands. Still, our knowledge of the rates and spatial patterns of these land‐use changes and how they affected carbon emissions remains partial. We used the Landsat satellite image archive to reconstruct land‐use change over the past 30 years and applied a carbon bookkeeping model to quantify how these changes affected carbon budgets. Between 1985 and 2013, more than 142 000 km2 of the Chaco's forests, equaling 20% of all forest, was replaced by croplands (38.9%) or grazing lands (61.1%). Of those grazing lands that existed in 1985, about 40% were subsequently converted to cropland. These land‐use changes resulted in substantial carbon emissions, totaling 824 Tg C between 1985 and 2013, and 46.2 Tg C for 2013 alone. The majority of these emissions came from forest‐to‐grazing‐land conversions (68%), but post‐deforestation land‐use change triggered an additional 52.6 Tg C. Although tropical dry forests are less carbon‐dense than moist tropical forests, carbon emissions from land‐use change in the Chaco were similar in magnitude to those from other major tropical deforestation frontiers. Our study thus highlights the urgent need for an improved monitoring of the often overlooked tropical dry forests and savannas, and more broadly speaking the value of the Landsat image archive for quantifying carbon fluxes from land change. |
| format | Artículo |
| id | INTA4220 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | INTA42202019-01-07T15:55:27Z Carbon emissions from agricultural expansion and intensification in the Chaco Baumann, Matthias Gasparri, Néstor Ignacio Piquer Rodriguez, María Gavier Pizarro, Gregorio Ignacio Griffiths, Patrick Hostert, Patrick Kuemmerle, Tobias Carbono Utilización de la Tierra Agricultura Intensificación Ecosistema Carbon Land Use Agriculture Intensification Ecosystems Expansión Agrícola Región Chaqueña Carbon emissions from land‐use changes in tropical dry forest systems are poorly understood, although they are likely globally significant. The South American Chaco has recently emerged as a hot spot of agricultural expansion and intensification, as cattle ranching and soybean cultivation expand into forests, and as soybean cultivation replaces grazing lands. Still, our knowledge of the rates and spatial patterns of these land‐use changes and how they affected carbon emissions remains partial. We used the Landsat satellite image archive to reconstruct land‐use change over the past 30 years and applied a carbon bookkeeping model to quantify how these changes affected carbon budgets. Between 1985 and 2013, more than 142 000 km2 of the Chaco's forests, equaling 20% of all forest, was replaced by croplands (38.9%) or grazing lands (61.1%). Of those grazing lands that existed in 1985, about 40% were subsequently converted to cropland. These land‐use changes resulted in substantial carbon emissions, totaling 824 Tg C between 1985 and 2013, and 46.2 Tg C for 2013 alone. The majority of these emissions came from forest‐to‐grazing‐land conversions (68%), but post‐deforestation land‐use change triggered an additional 52.6 Tg C. Although tropical dry forests are less carbon‐dense than moist tropical forests, carbon emissions from land‐use change in the Chaco were similar in magnitude to those from other major tropical deforestation frontiers. Our study thus highlights the urgent need for an improved monitoring of the often overlooked tropical dry forests and savannas, and more broadly speaking the value of the Landsat image archive for quantifying carbon fluxes from land change. Instituto de Recursos Biológicos Fil: Baumann, Matthias. Humboldt-University Berlin. Geography Department; Alemania Fil: Gasparri, Nestor Ignacio. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Instituto de Ecología Regional; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tucumán; Argentina. Humboldt-University Berlin. Integrative Research Institute for Transformations in Human Environment Systems; Alemania Fil: Piquer Rodriguez, María. Humboldt-University Berlin. Geography Department; Alemania Fil: Gavier Pizarro, Gregorio Ignacio. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Recursos Biológicos; Argentina Fil: Griffiths, Patrick. Humboldt-University Berlin. Geography Department; Alemania Fil: Hostert, Patrick. Humboldt-University Berlin. Geography Department; Alemania. Humboldt-University Berlin. Integrative Research Institute for Transformations in Human Environment Systems; Alemania Fil: Kuemmerle, Tobias. Humboldt-University Berlin. Geography Department; Alemania. Humboldt-University Berlin. Integrative Research Institute for Transformations in Human Environment Systems; Alemania 2019-01-07T15:47:53Z 2019-01-07T15:47:53Z 2017-05 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://onlinelibrary.wiley.com/doi/abs/10.1111/gcb.13521 http://hdl.handle.net/20.500.12123/4220 1354-1013 1365-2486 https://doi.org/10.1111/gcb.13521 eng info:eu-repo/semantics/restrictedAccess application/pdf Wiley Global Change Biology 23 (5) : 1902-1916 (May 2017) |
| spellingShingle | Carbono Utilización de la Tierra Agricultura Intensificación Ecosistema Carbon Land Use Agriculture Intensification Ecosystems Expansión Agrícola Región Chaqueña Baumann, Matthias Gasparri, Néstor Ignacio Piquer Rodriguez, María Gavier Pizarro, Gregorio Ignacio Griffiths, Patrick Hostert, Patrick Kuemmerle, Tobias Carbon emissions from agricultural expansion and intensification in the Chaco |
| title | Carbon emissions from agricultural expansion and intensification in the Chaco |
| title_full | Carbon emissions from agricultural expansion and intensification in the Chaco |
| title_fullStr | Carbon emissions from agricultural expansion and intensification in the Chaco |
| title_full_unstemmed | Carbon emissions from agricultural expansion and intensification in the Chaco |
| title_short | Carbon emissions from agricultural expansion and intensification in the Chaco |
| title_sort | carbon emissions from agricultural expansion and intensification in the chaco |
| topic | Carbono Utilización de la Tierra Agricultura Intensificación Ecosistema Carbon Land Use Agriculture Intensification Ecosystems Expansión Agrícola Región Chaqueña |
| url | https://onlinelibrary.wiley.com/doi/abs/10.1111/gcb.13521 http://hdl.handle.net/20.500.12123/4220 https://doi.org/10.1111/gcb.13521 |
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