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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 [ver mas...]
dc.contributor.authorRicard, Maria Florencia
dc.contributor.authorViglizzo, Ernesto Francisco
dc.contributor.authorPodestá, Guillermo Pablo
dc.date.accessioned2018-11-07T18:31:20Z
dc.date.available2018-11-07T18:31:20Z
dc.date.issued2015-12
dc.identifier.issn0140-1963
dc.identifier.otherhttps://doi.org/10.1016/j.jaridenv.2014.10.009
dc.identifier.urihttp://hdl.handle.net/20.500.12123/3819
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0140196314002043?via%3Dihub
dc.description.abstractConsidering 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.eng
dc.formatapplication/pdfeng
dc.language.isoeng
dc.publisherElseviereng
dc.rightsinfo:eu-repo/semantics/restrictedAccesseng
dc.sourceJournal of arid environments 123 : 68-80. (December 2015)eng
dc.subjectZonas Ruraleses_AR
dc.subjectRural Areaseng
dc.subjectLand Use Planningeng
dc.subjectOrdenación Territoriales_AR
dc.subjectLand Useeng
dc.subjectUtilización de la Tierraes_AR
dc.subjectAdopción de Innovacioneses_AR
dc.subjectInnovation Adoptioneng
dc.subjectSemiarid Zoneseng
dc.subjectZona Semiáridaes_AR
dc.subjectSubhumid Zoneseng
dc.subjectZona Subhumedaes_AR
dc.subjectClimate Change Adaptationeng
dc.subjectAdaptación al Cambio Climáticoes_AR
dc.subject.otherTechnology Adoptioneng
dc.subject.otherEstados Unidoses_AR
dc.subject.otherChaco Semiáridoes_AR
dc.titleComparison of adaptative strategies to climate variability in rural areas of Argentine Chaco and US Southern Plains during the last centuryeng
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articleeng
dc.typeinfo:eu-repo/semantics/publishedVersioneng
dc.description.origenEEA Anguiles_AR
dc.description.filFil: 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; Argentinaes_AR
dc.description.filFil: 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; Argentinaes_AR
dc.description.filFil: Podestá, Guillermo Pablo. University of Miami. Rosenstiel School of Marine and Atmospheric Science. Division of Meteorology and Physical Oceanography; Estados Unidoses_AR
dc.subtypecientifico


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