Cultivating the dry forests of South America: Diversity of land users and imprints on ecosystem functioning
In the South American dry forest of the Dry Chaco and Chiquitania, the area under cultivation rose from 10% to 19% over the last 10 years, and little biophysical, economical, or political constrains seem to prevent further expansion. Although typically associated to a homogeneous agribusiness system...
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| Format: | info:ar-repo/semantics/artículo |
| Language: | Inglés |
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2018
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| Online Access: | https://www.sciencedirect.com/science/article/pii/S0140196314001426#! http://hdl.handle.net/20.500.12123/2146 https://doi.org/10.1016/j.jaridenv.2014.05.027 |
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| author | Baldi, Germán Houspanossian, Javier Murray, Francisco Rosales, Adriel A. Rueda, Carla V. Jobbagy Gampel, Esteban Gabriel |
| author_browse | Baldi, Germán Houspanossian, Javier Jobbagy Gampel, Esteban Gabriel Murray, Francisco Rosales, Adriel A. Rueda, Carla V. |
| author_facet | Baldi, Germán Houspanossian, Javier Murray, Francisco Rosales, Adriel A. Rueda, Carla V. Jobbagy Gampel, Esteban Gabriel |
| author_sort | Baldi, Germán |
| collection | INTA Digital |
| description | In the South American dry forest of the Dry Chaco and Chiquitania, the area under cultivation rose from 10% to 19% over the last 10 years, and little biophysical, economical, or political constrains seem to prevent further expansion. Although typically associated to a homogeneous agribusiness system, agriculture and its expansion in this territory involve a diverse array of land users. Here we (i) identified and mapped the most conspicuous groups of land users based on existing scientific literature and technical reports, and (ii) described their associated landscape pattern and (iii) vegetation functioning based on different remote sensing tools applied to a set of 218 sample points. We recognized 14 groups of land users of local or foreign origin, composed by individuals or corporative organizations, and dedicated either to pasture or crop production, or its combination. These groups displayed a wide variation in the scale of their operations as suggested by a 60-fold difference in paddock sizes. Twelve years of MODIS-NDVI data showed small and non-significant differences in the magnitude of primary productivity (1.2-fold difference) but strong contrasts in its seasonality and long-term variability, including shifts in the rates of vegetation greening and browning (up to 4-fold differences), growing period length (193 to 278 days y−1), number of cultivation seasons per year (1–1.75), and inter-annual coefficient of variation (up to 0.13). Agriculture under capitalized groups was characterized by very large paddocks, less stable productivity patterns, and more divergent seasonality. Instead, all smallholders showed more stable productivities both seasonally and inter-annually. Deforestation and cultivation in these dry regions does not have a single imprint on landscapes configuration and primary production dynamics, but one that shifts depending on the human and productive context under which they take place. |
| format | info:ar-repo/semantics/artículo |
| id | INTA2146 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| record_format | dspace |
| spelling | INTA21462019-03-27T13:34:41Z Cultivating the dry forests of South America: Diversity of land users and imprints on ecosystem functioning Baldi, Germán Houspanossian, Javier Murray, Francisco Rosales, Adriel A. Rueda, Carla V. Jobbagy Gampel, Esteban Gabriel Bosques Ecosistema Forests Ecosystems Landscape Paisaje América del Sur In the South American dry forest of the Dry Chaco and Chiquitania, the area under cultivation rose from 10% to 19% over the last 10 years, and little biophysical, economical, or political constrains seem to prevent further expansion. Although typically associated to a homogeneous agribusiness system, agriculture and its expansion in this territory involve a diverse array of land users. Here we (i) identified and mapped the most conspicuous groups of land users based on existing scientific literature and technical reports, and (ii) described their associated landscape pattern and (iii) vegetation functioning based on different remote sensing tools applied to a set of 218 sample points. We recognized 14 groups of land users of local or foreign origin, composed by individuals or corporative organizations, and dedicated either to pasture or crop production, or its combination. These groups displayed a wide variation in the scale of their operations as suggested by a 60-fold difference in paddock sizes. Twelve years of MODIS-NDVI data showed small and non-significant differences in the magnitude of primary productivity (1.2-fold difference) but strong contrasts in its seasonality and long-term variability, including shifts in the rates of vegetation greening and browning (up to 4-fold differences), growing period length (193 to 278 days y−1), number of cultivation seasons per year (1–1.75), and inter-annual coefficient of variation (up to 0.13). Agriculture under capitalized groups was characterized by very large paddocks, less stable productivity patterns, and more divergent seasonality. Instead, all smallholders showed more stable productivities both seasonally and inter-annually. Deforestation and cultivation in these dry regions does not have a single imprint on landscapes configuration and primary production dynamics, but one that shifts depending on the human and productive context under which they take place. EEA Valle Inferior Fil: Baldi, Germán. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis. Grupo de Estudios Ambientales; Argentina. Universidad Nacional de San Luis; Argentina Fil: Houspanossian, Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis. Grupo de Estudios Ambientales; Argentina. Universidad Nacional de San Luis; Argentina Fil: Murray, Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis. Grupo de Estudios Ambientales; Argentina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Valle Inferior; Argentina Fil: Rosales, Adriel A. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis. Grupo de Estudios Ambientales; Argentina. Universidad Nacional de San Luis; Argentina. Universidad de La Punta; Argentina Fil: Rueda, Carla V. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis. Grupo de Estudios Ambientales; Argentina. Universidad Nacional de San Luis; Argentina. Universidad Nacional de Santiago del Estero. Instituto de Silvicultura y Manejo de Bosques; Argentina Fil: Jobbagy, Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis. Grupo de Estudios Ambientales; Argentina. Universidad Nacional de San Luis; Argentina 2018-03-28T14:21:17Z 2018-03-28T14:21:17Z 2015-12 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://www.sciencedirect.com/science/article/pii/S0140196314001426#! http://hdl.handle.net/20.500.12123/2146 0140-1963 https://doi.org/10.1016/j.jaridenv.2014.05.027 eng info:eu-repo/semantics/restrictedAccess application/pdf South America (continent) Journal of arid environments 123 : 47-59. (December 2015) |
| spellingShingle | Bosques Ecosistema Forests Ecosystems Landscape Paisaje América del Sur Baldi, Germán Houspanossian, Javier Murray, Francisco Rosales, Adriel A. Rueda, Carla V. Jobbagy Gampel, Esteban Gabriel Cultivating the dry forests of South America: Diversity of land users and imprints on ecosystem functioning |
| title | Cultivating the dry forests of South America: Diversity of land users and imprints on ecosystem functioning |
| title_full | Cultivating the dry forests of South America: Diversity of land users and imprints on ecosystem functioning |
| title_fullStr | Cultivating the dry forests of South America: Diversity of land users and imprints on ecosystem functioning |
| title_full_unstemmed | Cultivating the dry forests of South America: Diversity of land users and imprints on ecosystem functioning |
| title_short | Cultivating the dry forests of South America: Diversity of land users and imprints on ecosystem functioning |
| title_sort | cultivating the dry forests of south america diversity of land users and imprints on ecosystem functioning |
| topic | Bosques Ecosistema Forests Ecosystems Landscape Paisaje América del Sur |
| url | https://www.sciencedirect.com/science/article/pii/S0140196314001426#! http://hdl.handle.net/20.500.12123/2146 https://doi.org/10.1016/j.jaridenv.2014.05.027 |
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