Registro:
Título en inglés:
Climate factors rather than human activities controlled NDVI trends across wet meadow areas in the Andes Centrales of Argentina
Autor/es:
Castro Sardiña, Leticia Sabrina; Irisarri, Jorge Gonzalo Nicolás; Texeira, Marcos
Filiación:
Castro Sardiña, Leticia Sabrina. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.
Castro Sardiña, Leticia Sabrina. CONICET – Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.
Castro Sardiña, Leticia Sabrina. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Métodos Cuantitativos y Sistemas de Información. Buenos Aires, Argentina.
Irisarri, Jorge Gonzalo Nicolás. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.
Irisarri, Jorge Gonzalo Nicolás. CONICET – Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.
Irisarri, Jorge Gonzalo Nicolás. Rothamsted Research. Net Zero & Resilient Farming directorate. North Wyke, UK.
Texeira, Marcos. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.
Texeira, Marcos. CONICET – Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.
Texeira, Marcos. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Métodos Cuantitativos y Sistemas de Información. Buenos Aires, Argentina.
Título revista:
Journal of Arid Environments
Temas:
ENSO; HUMAN IMPACT; NDVI TRENDS; RESTREND; WET MEADOWS; OPEN PIT MINING
Url al documento en Intranet FAUBA:
Resumen:
In the Andes of southern South America, wet meadows are much more productive than nearby arid areas. Human activities, along with climate variations may reduce the productivity of these ecosystems. However, we do not know what the relative effect of climate and human activities on their degradation status is. Here, we first quantified the degradation extent through the temporal trend of normalized difference vegetation index (NDVI), a proxy of productivity, from 1999 to 2017. We did it in 736 wet meadow areas inserted in three nearby zones with contrasting land management. Second, we analyzed the relationship between NDVI and a large-scale mode of climate variability (El Niño Southern Oscillation, ENSO) and regional climate variables (precipitation and temperature) through a structured climate model. Finally, we evaluated human activities’ effects through the temporal trends in the residuals of the climate model. Independently of land management, NDVI trends were mainly negative and affected 56% of the wet meadow areas. The climate model indicated that NDVI increased under La Niña, cool and wet years. Regarding land management, the degradation level was similar across the contrasted land management. Our results suggest that climate factors rather than human activities influenced the degradation process in these areas.
Citación:
---------- APA ----------
Castro Sardiña, L. S.; Irisarri, J. G. N. & Texeira, M. (2023).Climate factors rather than human activities controlled NDVI trends across wet meadow areas in the Andes Centrales of Argentina.Journal of Arid Environments,214,art.104983
10.1016/j.jaridenv.2023.104983
---------- CHICAGO ----------
Castro Sardiña, Leticia Sabrina, Irisarri, Jorge Gonzalo Nicolás, Texeira, Marcos.2023. "Climate factors rather than human activities controlled NDVI trends across wet meadow areas in the Andes Centrales of Argentina".Journal of Arid Environments 214:art.104983.
Recuperado de http://ri.agro.uba.ar/greenstone3/library/collection/arti/document/2023castrosardina