Estudo comparativo entre três modelos de base física na modelagem hidrossedimentológica em microbacias na região semiárida paraibana.

Abstract

Investigations hydro-sedimentological models in experimental models in experimental basins are of great importance, as the results may be extended to other basins that are hydrologically similar. However, the chance of an appropriate model for the basin and the region as very important. In this, study three hydro-sedimentological models- WESP (Watershed Erosion Simulation Program), KINEROS2 (Kinematic Runoff Erosion Model) e WEPP (Water Erosion Prediction Project) were chosen for comparative evaluation. The models were applied to the erosion plots and micro-basins of the experimental basins of São João de Cariri and Sumé. The study involving three steps, namely, parameterization, model comparison and scale effects were caned and with the models and the results show that KINEROS2 and WESP are not only result but turning similar results. WEPP was efficient in simulating the runoff fairly well, but was pas on simulating the erosion values particularly in microbasin SJC. The models KINEROS2 and WESP swarmed that the parameters were refinally stable and could be applied to neighboring basing with on the same hydrologically, homogeneous region.