Fecha/hora: 03/06/2024 14:35:15

Biblioteca(s): | INIA Las Brujas.
Fecha corriente: | 17/04/2024
Fecha de la última actualización: | 17/04/2024
Autoria: | NUÑEZ, J.A.; AGUIAR, S.; JOBBÁGY, E.G.; JIMÉNEZ, Y.G.; BALDASSINI, P.
Afiliación: | JOAQUIN A. NÚÑEZ, Facultad de Agronomía, Universidad de Buenos Aires, Av. San Martin 4453, Buenos Aires, C1417DSE, Argentina; SEBASTIÁN AGUIAR, Laboratorio de Análisis Regional y Teledetección, IFEVA, Universidad de Buenos Aires, CONICET, Facultad de Agronomía, Buenos Aires, C1417DSE, Argentina; Cátedra de Dasonomía, Departamento de Producción Vegetal, Facultad de Agronomía, Universidad de Buenos; ESTEBAN G. JOBBÁGY, Grupo de Estudios Ambientales-IMASL, Universidad Nacional de San Luis & CONICET, San Luis, Argentina; YOHANA G. JIMÉNEZ, Instituto de Ecología Regional (IER), Universidad Nacional de Tucumán (UNT)- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Tucumán, Argentina; PABLO BALDASSINI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Departamento de Métodos Cuantitativos y Sistemas de Información, Facultad de Agronomía, LART IFEVA, Universidad, de Buenos Aires, CONICET, Argentina.
Título: | Climate change and land cover effects on water yield in a subtropical watershed spanning the yungas-chaco transition of Argentina.
Año de publicación: | 2024
Fuente/Imprenta: | Journal of Environmental Management. 2024, Volume 358, e120808. https://doi.org/10.1016/j.jenvman.2024.120808
ISSN: | 0301-4797
DOI: | 10.1016/j.jenvman.2024.120808
Idioma: | Inglés
Notas: | Article history: Received 26 October 2023, Revised 29 February 2024, Accepted 31 March 2024, Available online 9 April 2024, Version of Record 9 April 2024. --  Correspondence: Baldassini, P.; Universidad de Buenos Aires, INIA La Estanzuela, Av. San Martín 4453, Argentina, Ruta 50 km 11, Colonia, Buenos Aires, Uruguay; email:pbaldass@agro.uba.ar --
Contenido: | ABSTRACT.- The demand for mountain water resources is increasing, and their availability is threatened by climate change, emphasizing the urgency for effective protection and management. The upper Sali-Dulce watershed holds vital significance as it contributes the majority of the Sali-Dulce water resources, supporting a densely populated dry region in Northwestern Argentina, covering an area of 24,217 km2. However, the potential impact of climate change and land use/land cover change on water yield in this watershed remains uncertain. This study employs the InVEST Annual Water Yield model to analyze the average water yield in the watershed and evaluate its potential changes under future scenarios of climate and land use/land cover change. InVEST was calibrated using data from multiple river gauges located across the watershed, indicating satisfactory performance (R2 = 0.751, p-value = 0.0054). Precipitation and evapotranspiration were the most important variables explaining water yield in the area, followed by land use. Water yield showed a notable concentration in the montane area with 40% of the watershed accounting for 80% of the water yield, underscoring the importance of conserving natural land cover in this critical zone. Climate change scenarios project an increase in water yield ranging from 21 to 75%, while the effects of land cover change scenarios on water yield vary, with reforestation scenarios leading to reductions of up to 15% and expansions in non-irrigated agriculture resulting in increases of up to 40%. Additionally, water yield distribution may become more concentrated or dispersed, largely dependent on the type of land cover. The combined scenarios highlight the pivotal role of land cover in adapting to climate change. Our findings provide valuable insights for designing future studies and developing policies aimed at implementing effective adaptation strategies to climate change within the Salí-Dulce watershed. © 2024 Elsevier Ltd
Palabras-Clave: | InVEST annual water yield; Mountain water resources; Scenarios; Spatial analysis.
Categoría del tema: | A50 Investigación agraria
Registro original: | INIA Las Brujas (LB)
Ejemplares: | LB - (103945-1) - PXI - AP - DD - Jr. Environmental Management/2024 -  -  - DIS