EDAFOLOGÍA, VOL 13. (1), PP 21-31 2006

EVALUACIÓN MEDIANTE SIG DE LA AGRESIVIDAD PLUVIAL EN LOS ESPACIOS NATURALES DEL SUR DE SALAMANCA: REBO LLAR, BATUECAS. FRANCIA Y CANDELARIO-GREDOS

A. MARTÍNEZ-GRAÑA1, J.L. GOY1, J. MATEOS2, C. ZAZO3, J. SANZ2 & J. FOR- TEZA4

1Dpto. Geología. Fac. Ciencias. Univ. Salamanca. Pza. Merced s/n. 37008 - Salamanca, e-mail: amgranna@usal.es 2Dpto. Geología. E. Ciencias. Campus Universitario. Univ. de Alcalá. 28871-Alcalá de Henares. Madrid
3Dpto Geología. Museo Nacional de Ciencias Naturales - CSIC. 28006-Madrid 4Instituto de Recursos Naturales. IRNA - CSIC. Salamanca

Abstract

The Soil Loss Prediction by rainfall erosion is very important because in some geographic regions is necesssary a correct conservation and management soil for prevent the enviromental effects and consequent land degradation. In this paper is analized a quantitative evaluation of factors in water erosion for know Soil Potential erosion risk and the Soil Present erosion risk. Is realized a cartographic analysis by means of GIS for generate a guide to conservation planning. The study of some parameters ( litology, pre- cipitation, , slopes...) establish the use of soil loss tolerances as a strategy for soil conservation in land use and regulation of our soil resources. Is research the utilisation of the soil in the Human activity, and the re- sults permit zones caracterized with use recommendations for environmental management effective in the land planning based in the evaluation and interpretation of factors in the Soil-Loss Equation.

Key words: Hidric Erosion, Rainfall erosivity, GIS.