Determination of the capacity of soil use of watersheds through systematization of usle in SPRING.

Abstract

This work is a contribution to determining the capacity of use of the soil, through the USLE systematization - Universal Soil Loss Equation In The Gis (Geographic Information System) - SPRING. the researches were developed in the small Jirau river watersheds, located in the in Dois Vizinhos district, southwestern paraná. for determining the classes of capacity to use soil, it was carried out a pondered among the tolerable loss for each kind of soil in relation to the physical factors of USLE. Of these results we got for each point of the basin, the identification of the kind of using that it be done end the conservation practices that must be used. The final product is the drafting of a letter of ability to use soil, featuring seven different classes for a watershed. Keywords: Use capacity classes, watersheds, erosion; morphodynamic; Geographic Information System.