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Hydrogeology Journal

01.08.2012 | Paper

Uso excesivo de agua subterránea e ineficiencia técnica a nivel de finca: evidencia de Sri Lanka

verfasst von: Wasantha Athukorala, Clevo Wilson

Erschienen in: Hydrogeology Journal | Ausgabe 5/2012

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Resumen

La extracción del agua subterránea para la producción de cebolla y otros cultivos comerciales se ha incrementado rápidamente durante las últimas dos décadas en las áreas secas de Sri Lanka. Como un resultado del uso excesivo, la cantidad de agua subterránea disponible está declinando gradualmente, mientras que la calidad del agua se está deteriorando. El deterioro de la calidad de agua tiene un impacto negativo sobre la producción agrícola, especialmente para los cultivos (tales como la cebolla) que son sensibles al incremento en los niveles de salinidad. Este tema se examina con respecto a la producción de cebolla en Sri Lanka. Se utilizó una función estocástica de producción de frontera (SFPF) en las cuales la eficiencia técnica y los factores determinantes de las ineficiencias son estimadas simultáneamente. Los resultados muestran que los agricultores están haciendo un uso excesivo del agua subterránea en sus cultivos de cebolla lo que ha resultado en rendimientos decrecientes. También se han identificado los factores que contribuyen a la ineficiencia. Los resultados tienen importantes implicancias políticas.

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Titel: Uso excesivo de agua subterránea e ineficiencia técnica a nivel de finca: evidencia de Sri Lanka
verfasst von: Wasantha Athukorala
Clevo Wilson
Publikationsdatum: 01.08.2012
Verlag: Springer-Verlag
Erschienen in: Hydrogeology Journal / Ausgabe 5/2012
Print ISSN: 1431-2174
Elektronische ISSN: 1435-0157
DOI: https://doi.org/10.1007/s10040-012-0833-7