خيارات البحث
النتائج 1 - 4 من 4
[Protective barriers for water cleanness] | Barreras de protección para la limpieza del agua
1999
Markwart, A. | Mac Clintic, D.
[Monitoring of pollution by pesticides on soils and water in Valencia area [Spain]] | Vigilancia de la contaminación por plaguicidas en suelos y agua en el área de Valencia
2001
Gómez de Barreda Castillo, D. (Instituto Valenciano de Investigaciones Agrarias, Moncada (España))
[Code of good agrarian practices in Extremadura [Spain: management of fertilization and irrigation water]] | Codigo de buenas practicas agrarias en Extremadura: manejo de la fertilizacion y del agua de riego
1999
Hernandez Diaz-Ambrona, C.G.
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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