Droughts in the Cura Malal Grande Basin (Argentina): effects on vegetation during the 2018 event:

  Droughts are climatic events that affect various areas worldwide, generating economic and social impacts. In the Pampas region these events are significant due to their effects on agriculture and livestock. The objective of this work was to identify the droughts in the Cura Malal Grande basin in t...

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Detalles Bibliográficos
Autores principales: Ortuño Cano , María de los Ángeles, Gentili, Jorge Osvaldo
Formato: Artículo revista
Lenguaje:Español
Publicado: CURIHAM: Centro Universitario Rosario de Investigaciones Hidroambientales Facultad de Ciencias Exactas, Ingeniería y Agrimensura. Universidad Nacional de Rosario Director: Dr. Ing. Hernán Stenta Riobamba 245 bis, 2000 Rosario (Santa Fe), Argentina. Telefa 2024
Materias:
SPEI
Cuenca Hidrográfica
NDVI
Vertiente Norte del Sistema de Ventania
Basin
Northeastern Slope of the Ventania System
Acceso en línea:https://cuadernosdelcuriham.unr.edu.ar/index.php/CURIHAM/article/view/248
Aporte de:
Cuadernos del CURIHAM de Universidad Nacional de Rosario
Descripción
Sumario:  Droughts are climatic events that affect various areas worldwide, generating economic and social impacts. In the Pampas region these events are significant due to their effects on agriculture and livestock. The objective of this work was to identify the droughts in the Cura Malal Grande basin in the period 2001-20 and the behavior of the vegetation during the drought event of 2018. The Standardized Precipitation and Evapotranspiration Index (SPEI) and the Normalized Difference Vegetation Index (NDVI) were used. High correlation was found between NDVI and SPEI at a 3-month scale, indicating that the temporal scale better represents variations in vegetation. For the analysis of NDVI data, five representative samples from three sectors of the basin (upper, middle and lower) were selected. It was found that the 2018 drought event showed significant impacts on the vegetation of the basin. Index anomalies are exclusively negative with varying degrees of negativity. A greatest presence of vegetation was observed in the CM and CB-1 sampling areas (middle and lower basin, respectively), mainly in sectors close to the main course of the stream and bodies of water.

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