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Congress: 2008
Author(s): J. D. Bacchiega, M.C. Lopardo, H. D. Barrionuevo
Instituto Nacional del Agua Casilla de Correo 21 1802 - Aeropuerto Ezeiza República Argentina

Keyword(s): integrated basin studies, rural basins, hydrology
AbstractThe present work analyzes the factors that influence the hydrological, social and economic behavior of rural basins with high levels of antropization, indicating to them the importance of the execution of integral studies that should come out the political divisions of every region. Especially considers the case of the basin of the Arrecifes River, placed in the province of Buenos Aires, República Argentina, which constitutes one of the most productive regions of the country to agricultural level. Nowadays, the basin it is entirety affected by the mans actios, being the agriculture the most important activity of the region. Into the basin of the Arrecifes River there has been changing the use that was destining him to the soil, nowadays with agricultural predominance on the cattle and with a considerable evolution of the soybean cultivation to the detriment of the maize, wheat and sunflower among others. On the other hand, the form of working of the soil also has been changing, increasing the culture by means of the technology of direct sowing, diminishing the traditional practice. This basin possesses in addition, important problems of water erosion to that they must be attended in order to make sustentable the agricultural practice. The integral study realized on the basin, contemplates a hydrological diagnosis of the same one, to the purposes of establishing the factors that affect in the flooding that suffer the bordering zones to the rivers and creeks that shape it. These processes affect, in some cases, urban zones with the dangers that it implies, as well as in others cases affected rural zones and road links. A partir de este diagnóstico se determinan las obras necesarias para mitigar los efectos de los desbordes de los afluentes, así como medidas complementarias que conformen en conjunto, soluciones integrales para la totalidad de la cuenca. Se contempla, en el análisis integral, los aspectos socioeconómicos de la cuenca, los cuales determinarán la capacidad de inversión para las obras necesarias, la necesidad de las mismas, y el tipo de medidas estructurales y no estructurales para lograr un desarrollo sustentable de la región. From this diagnosis the necessary works decide to mitigate the effects of the overflows of the tributaries, as well as complementary measures that agree as integral solutions for the totality of the basin. There are contemplated, in the integral analysis, the socioeconomic aspects of the basin, which will determine the capacity of investment for the necessary works, the need of the same ones, and the type of structural and not structural measures to achieve a development sustentable of the region.
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