Understanding Drainage Dynamics and Irrigation Management in a Semi-Arid Mediterranean Basin
Ver/Abrir
Fecha de publicación
2022-12-21ISSN
2073-4441
Resumen
Irrigation is one of the main users of water worldwide and its overuse may affect the natural regimes of water systems. To avoid this, drainage and irrigation management needs to be improved. This study aims to determine the amount of water lost to drainage in a semi-arid Mediterranean irrigated area. Water use, rainfall and drainage were monitored for 12 months (2019–2020) in a 425 ha sub-basin in the Algerri-Balaguer irrigation district (8000 ha, NE Spain). In addition, irrigation requirements were estimated using the single-crop FAO-56 method and a two-source energy balance model (TSEB) was used to estimate actual evapotranspiration in the sub-basin. Water lost to drainage in the sub-basin was estimated as 18% of the total water that entered the perimeter as irrigation and rainfall, which are almost five time higher than theoretical requirements of leaching. Out of the total drainage water, 57% was estimated to be irrigation water and 43% rainwater. The average amount of irrigation water used was 614 mm and irrigation efficiency in the sub-basin was estimated at 80.2% and averaged actual evapotranspiration at 1144 mm. The available margin of improvement is between 19.3% of the present irrigation drainage ratio and the 3.8% estimated with the leaching requirement model.
Tipo de documento
Artículo
Versión del documento
Versión publicada
Lengua
English
Materias (CDU)
631/635 - Gestión de las explotaciones agrícolas
Páginas
23
Publicado por
MDPI
Publicado en
Water
Citación
Altés, Víctor, Joaquim Bellvert, Miquel Pascual, and Josep Maria Villar. 2023. "Understanding Drainage Dynamics And Irrigation Management In A Semi-Arid Mediterranean Basin". Water 15 (1): 16. doi:10.3390/w15010016.
Número del acuerdo de la subvención
MC/Programa Estatal de I+D+I orientada a los retos de la sociedad/PCI2020-112030/ES/Seguimiento de riego y drenaje por teledetección para la gestión de ecosistemas y recursos hídricos/
Program
Ús Eficient de l'Aigua en Agricultura
Este ítem aparece en la(s) siguiente(s) colección(ones)
- ARTICLES CIENTÍFICS [2850]
Excepto si se señala otra cosa, la licencia del ítem se describe como http://creativecommons.org/licenses/by/4.0/