MODELING OF SEDIMENT YIELD FOR MALAPRABHA SUB BASIN USING SWAT

Nagraj S. Patil, Priyanka

Abstract: Soil erosion is one of the most serious environmental problem since the fertile soil which is rich in nutrients gets removed. This erosion of soil reduces the capacity and life span of rivers and reservoirs. This has become severe problem which is a challenging management task for the water resource department. Thus soil resource need to be conserved for optimal land use for maintaining and improving soil productivity. Since mathematical models have great potential to support landuse planning with the goal of improving water and land quality. In this study, the Soil and Water Assessment Tool(SWAT) model having an interface with ArcView GIS software is used for estimation of sediment yield for Malaprabha sub basin. The model is calibrated and validated using observed runoff and sediment yield data. Calibration is done manually. By this study we come to know that the model with corresponding optimum set of parameters is able to predict water flow and sediment yield values, which might be beneficial for future planning and management in mitigating the problems of soil erosion and sedimentation

Keywords: Soil Erosion, Sediment yield, SWAT, Malaprabha Sub basin

DOI: https://doi.org/10.15623/ijret.2016.0530013