[Quantification of superficial soils loss at basin level through the application of the universal equation of soil loss]

bassin versant computer software conservation des sols deterioro del suelo evaluation forecasting land use lluvia logiciel measurement mesure meteorological observations methode methods organic matter pluie programas de ordenador rain sediment sedimento soil soil conservation soil deterioration soil texture sol suelo textura del suelo texture du sol time series analysis topografia topographie topography utilisation des terres venezuela water erosion watersheds