Abstract: The study integrates the Revised Universal Soil Loss Equation (RUSLE) with Geographic Information System (GIS) to model the erosion potential within a tropical river system, Kuttiyadi in Kozhikode. Soil erosion was estimated for the year 2006 and the maximum value found to be 3470 t/ ha. Soil eroded from the whole area accounts to about 1.2 Mt. The spatial erosion map prepared could be used for planning and modifying erosion management measures in the sensitive mountainous region.

Keywords: DEM, GIS, RUSLE, Sediment yield, Soil Erosion.