[A methodology for the evaluation of environmental vulnerability, and its application in the qualitative analysis of water erosion in the central basin of the river Tuy]

analyse statistique bassin versant clima climat climate deterioro del suelo environmental impact evaluation forecasting geologia geologie geology highlands impact sur l'environnement impacto ambiental methode methods mouvement de l'eau dans le sol movimiento del agua en el suelo physiographic features soil soil deterioration soil water movement sol statistical analysis suelo vegetation water erosion watersheds yaracuy