Resumen -En el presente artículo se revisan los usos que pueden tener las aguas regeneradas en agricultura y con una fi nalidad medioambiental. Aunque tras un correcto tratamiento de depuración las opciones de uso de las aguas residuales son muchas, se destinan mayoritariamente a una fi nalidad agraria. Las ventajas de regar con esta fuente complementaria de agua es que se reduce la sobreexplotación de los acuíferos y se puede aprovechar la carga nutricional del agua para disminuir la cantidad de fertilizante aportado. En las próximas décadas parece que además de en agricultura, las aguas regeneradas cada vez se utilizarán más para diferentes usos urbanos y ambientales. A nivel medioambiental, las aguas depuradas facilitan el mantenimiento de los humedales y los caudales mínimos ecológicos. Palabras clave: depuración de agua, agua regenerada, agricultura de regadío, humedales, sostenibilidad ambiental
Abstract -This article analyses reused water for agricultural and environmental purposes. After proper purifi cation treatments have been applied there are many options available for the use of the reclaimed wastewater, but most of it is used in agriculture. It is possible to reduce the overexploitation of
The decision-making process of farmers in the Spanish Mediterranean regions was analysed using the function of Multi-Attribute Utility Theory (MAUT). The economic, agronomic and social repercussions resulting from adopting a series of technological and structural improvements were evaluated on farms with citricultural and outdoor horticultural production. The introduction of such measures is necessary to improve competitiveness and favour the sustainability of these farms. The outstanding consequences of these innovations were a more efficient use of irrigation water and an increase in the area of vegetable cultivation when mechanized, which counteracted the overwhelming trend in the area towards citriculture.
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