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Abstract

La escasez criciente del agua, no debida exclusivamente a causas climaticas, exige que este recurso sea gestionado con criterios socioeconomicos cuando es utilizado en actividades de este caracter; por ello en este trabajo, para los anos 1996 y 2002, se han calculado las productividades bruta y neta por hectarea y por metro cubico del agua en el ergadio de las cinco cuencas hidrograficas en las que se distribuye el territoria andaluz, y en los veinticinco sistemas de explotacion de recursos existentes; de esta manera es posible hacer estudios comparativos que permitan conocer las causes modificables o no, que motican las diferencias en la eficiencia tecnica y economica en el uso del agua. Ademas, se han comparado estas productividades con el coste del agua; se ha determinado tambien el empleo generado por la agricultura de regadio en los distintos ambitos...The increasing shortage of water, which is not only due to climatic causes, means that this resource must be managed with socio-economic criteria when it is used in activities of this nature; therefore, in this work, for the years 1996 and 2002 we have calculated the gross and net productivity per hectare and per cubic meter of water for the irrigation of the five hydographical basins in which the territory of Andalusia is divided and the twenty five current systems of exploitation of these resources; therefore,it is possible to carry out comparative studies which can show the causes, whether they can be modified or not, which are behind the differences in technical and economic efficiency in water use. Furthermore, we have compared productivity in the cost of water; we have also determined the employment generated by irrigation agriculture in different areas.

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