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Artículo

Trends in soil moisture content and water defcits in Argentina and the role of climate contribution

Peretti, Mercedes; Spennemann, Pablo CristianIcon ; Fernández Long, María Elena
Fecha de publicación: 05/2023
Editorial: Springer Wien
Revista: Theory & Application Climatology
ISSN: 0177-798X
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Ciencias Medioambientales

Resumen

Soil moisture and meteorological variables are strongly related to each other through different fluxes, constituting a complex network of interactions and feedbacks. Therefore, a better understanding of the temporal and spatial variability of soil moisture and its relationship with meteorological variables acquires a particular interest, especially under climate change conditions. Based on the gap in studies addressing this topic in Argentina, this study aimed to evaluate soil moisture content (SMC) and water deficit (DEF) annual trends between 1990 and 2019 and the contribution of different meteorological variables to those trends. To this end, simulations of SMCand DEF were performed by using a hydrological balance model, driven by meteorological observations of 51 sites distributed throughout Argentina. Since precipitation (PP) and potential evapotranspiration (PE) modulate the simulated soil moisture, annual PP and PE trends were also evaluated to assess the importance of these variables on the observed soil moisture changes. Furthermore, the regional contribution of the meteorological variables to the PE trends was assessed by means of a detrended method. Trends detected in SMC and DEF suggest an increase towards drier conditions in some areas of the country. Changes in PE were the main responsible for changes in SMC and DEF and were more relevant than changes in PP. In sites located in the center and east of the country, maximum and mean temperatures had a greater impact on PE. In sites located in the west of the country, changes in PE were mainly controlled by increases in wind speed and decreases in humidity. Examining the spatio-temporal variability of soil water and the meteorological variables that influence soil water is indispensable to assess climate-induced changes and propose feasible climate change adaptation strategies.
Palabras clave: SOIL WATER , CLIMATE CHANGE , CLIMATE DRIVERS
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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/224867
URL: https://link.springer.com/article/10.1007/s00704-023-04428-x
DOI: http://dx.doi.org/10.1007/s00704-023-04428-x
Colecciones
Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Citación
Peretti, Mercedes; Spennemann, Pablo Cristian; Fernández Long, María Elena; Trends in soil moisture content and water defcits in Argentina and the role of climate contribution; Springer Wien; Theory & Application Climatology; 152; 3-4; 5-2023; 1189-1201
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