Comparison of adaptative strategies to climate variability in rural areas of Argentine Chaco and US Southern Plains during the last century
Considering uncertainties regarding climate variability, the objective of this study was to make a long-term (1901–2011) comparative assessment of the impact of land-use decision (changes in the cultivated area) and technology adoption as adaptative mechanisms of the rural sector in the Argentine Ch...
| Autores principales: | , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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Elsevier
2018
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| Acceso en línea: | http://hdl.handle.net/20.500.12123/3819 https://www.sciencedirect.com/science/article/pii/S0140196314002043?via%3Dihub https://doi.org/10.1016/j.jaridenv.2014.10.009 |
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| author | Ricard, Maria Florencia Viglizzo, Ernesto Francisco Podestá, Guillermo Pablo |
| author_browse | Podestá, Guillermo Pablo Ricard, Maria Florencia Viglizzo, Ernesto Francisco |
| author_facet | Ricard, Maria Florencia Viglizzo, Ernesto Francisco Podestá, Guillermo Pablo |
| author_sort | Ricard, Maria Florencia |
| collection | INTA Digital |
| description | Considering uncertainties regarding climate variability, the objective of this study was to make a long-term (1901–2011) comparative assessment of the impact of land-use decision (changes in the cultivated area) and technology adoption as adaptative mechanisms of the rural sector in the Argentine Chaco and the US Southern Plains. Different sources of data on climate (precipitation, minimum, mean and maximum temperature and evapotranspiration), land-use change (proportion of cultivated area) and technology adoption were used. This work involved three main analytical steps: i) Principal Components Analysis (PCA) was applied to identified the dominant components of data variance, ii) the relationship between the residuals of precipitation and land-use change was assessed by means of a simple regression analysis and iii) technology adoption was evaluated through a proxy based on historical changes in the yield of maize (Zea mays L.). The results showed that farmers in both countries relied on two common adaptative strategies to face climate perturbations during the study period: i) land-use change (a simple binary decision of planting or not planting in response to climate conditions) during a first stage, and ii) the introduction of adaptative technologies to smooth the impact of climate during the second one. That substitution of adaptative strategies begun during the 1940 decade in the US Southern Plains, and around 30 years later in the Argentine Chaco. The adoption of technologies and agronomic practices explained the sensitivity decay of the cultivated area to the climatic variability during the second stage. The incorporation of improved hybrids with higher drought resistance plus the adoption of tilling practices like minimum tillage or no-till, the input of fertilizers, pesticides and irrigation water (the last one in US, only) became a successful strategy to mitigate the risk of climate perturbation. |
| format | Artículo |
| id | INTA3819 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | INTA38192018-11-07T18:35:35Z Comparison of adaptative strategies to climate variability in rural areas of Argentine Chaco and US Southern Plains during the last century Ricard, Maria Florencia Viglizzo, Ernesto Francisco Podestá, Guillermo Pablo Zonas Rurales Ordenación Territorial Utilización de la Tierra Adopción de Innovaciones Zona Semiárida Zona Subhumeda Adaptación al Cambio Climático Rural Areas Land Use Planning Land Use Innovation Adoption Semiarid Zones Subhumid Zones Climate Change Adaptation Technology Adoption Estados Unidos Chaco Semiárido Considering uncertainties regarding climate variability, the objective of this study was to make a long-term (1901–2011) comparative assessment of the impact of land-use decision (changes in the cultivated area) and technology adoption as adaptative mechanisms of the rural sector in the Argentine Chaco and the US Southern Plains. Different sources of data on climate (precipitation, minimum, mean and maximum temperature and evapotranspiration), land-use change (proportion of cultivated area) and technology adoption were used. This work involved three main analytical steps: i) Principal Components Analysis (PCA) was applied to identified the dominant components of data variance, ii) the relationship between the residuals of precipitation and land-use change was assessed by means of a simple regression analysis and iii) technology adoption was evaluated through a proxy based on historical changes in the yield of maize (Zea mays L.). The results showed that farmers in both countries relied on two common adaptative strategies to face climate perturbations during the study period: i) land-use change (a simple binary decision of planting or not planting in response to climate conditions) during a first stage, and ii) the introduction of adaptative technologies to smooth the impact of climate during the second one. That substitution of adaptative strategies begun during the 1940 decade in the US Southern Plains, and around 30 years later in the Argentine Chaco. The adoption of technologies and agronomic practices explained the sensitivity decay of the cultivated area to the climatic variability during the second stage. The incorporation of improved hybrids with higher drought resistance plus the adoption of tilling practices like minimum tillage or no-till, the input of fertilizers, pesticides and irrigation water (the last one in US, only) became a successful strategy to mitigate the risk of climate perturbation. EEA Anguil Fil: Ricard, Maria Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias de la Tierra y Ambientales de La Pampa. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. Instituto de Ciencias de la Tierra y Ambientales de La Pampa; Argentina Fil: Viglizzo, Ernesto Francisco. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias de la Tierra y Ambientales de La Pampa. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. Instituto de Ciencias de la Tierra y Ambientales de La Pampa; Argentina. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales; Argentina Fil: Podestá, Guillermo Pablo. University of Miami. Rosenstiel School of Marine and Atmospheric Science. Division of Meteorology and Physical Oceanography; Estados Unidos 2018-11-07T18:31:20Z 2018-11-07T18:31:20Z 2015-12 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/3819 https://www.sciencedirect.com/science/article/pii/S0140196314002043?via%3Dihub 0140-1963 https://doi.org/10.1016/j.jaridenv.2014.10.009 eng info:eu-repo/semantics/restrictedAccess application/pdf Elsevier Journal of arid environments 123 : 68-80. (December 2015) |
| spellingShingle | Zonas Rurales Ordenación Territorial Utilización de la Tierra Adopción de Innovaciones Zona Semiárida Zona Subhumeda Adaptación al Cambio Climático Rural Areas Land Use Planning Land Use Innovation Adoption Semiarid Zones Subhumid Zones Climate Change Adaptation Technology Adoption Estados Unidos Chaco Semiárido Ricard, Maria Florencia Viglizzo, Ernesto Francisco Podestá, Guillermo Pablo Comparison of adaptative strategies to climate variability in rural areas of Argentine Chaco and US Southern Plains during the last century |
| title | Comparison of adaptative strategies to climate variability in rural areas of Argentine Chaco and US Southern Plains during the last century |
| title_full | Comparison of adaptative strategies to climate variability in rural areas of Argentine Chaco and US Southern Plains during the last century |
| title_fullStr | Comparison of adaptative strategies to climate variability in rural areas of Argentine Chaco and US Southern Plains during the last century |
| title_full_unstemmed | Comparison of adaptative strategies to climate variability in rural areas of Argentine Chaco and US Southern Plains during the last century |
| title_short | Comparison of adaptative strategies to climate variability in rural areas of Argentine Chaco and US Southern Plains during the last century |
| title_sort | comparison of adaptative strategies to climate variability in rural areas of argentine chaco and us southern plains during the last century |
| topic | Zonas Rurales Ordenación Territorial Utilización de la Tierra Adopción de Innovaciones Zona Semiárida Zona Subhumeda Adaptación al Cambio Climático Rural Areas Land Use Planning Land Use Innovation Adoption Semiarid Zones Subhumid Zones Climate Change Adaptation Technology Adoption Estados Unidos Chaco Semiárido |
| url | http://hdl.handle.net/20.500.12123/3819 https://www.sciencedirect.com/science/article/pii/S0140196314002043?via%3Dihub https://doi.org/10.1016/j.jaridenv.2014.10.009 |
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