Desarrollo de un índice agroambiental de riesgo de contaminación del agua por el fósforo en una zona de regadío del sistema del Alto Aragón
2008
Stambouli, T.
In semi-arid irrigation areas, one of the most important water quality problems is nutrient pollution from agriculture through irrigation return flows. The element that most frequently limits the growth of aquatic vegetation is phosphorus (P) that may cause eutrophication above certain thresholds. Several management models for phosphorus diffuse pollution by agriculture are available currently, some of which resort to the use of indices. An index of phosphorus risk loss (PI) is a numerical value that weighs in a qualitative way the risk of water pollution by P associated to farming practices, soil and meteorological conditions. For these, a PI must account for and integrate the processes involved in P availability and P transport. In this thesis, a new PI (IPreg) has been developed for the irrigated area within "Las Filadas" gully watershed (Huesca), with a total 4,920 ha and included in the water users associations of Orillena, Lanaja and Lalueza
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