Estimation of soil loss by USLE Model using Remote Sensing and GIS Techniques - A Case study of Coastal Odisha, India

Authors : Ramasamy SRİNİVASAN, Surendra Kumar SİNGH, Dulal Chandra NAYAK, Rajendra HEGDE, Muniasami RAMESH

Pages : 321-328

Doi:10.18393/ejss.598120

View : 47 | Download : 9

Publication Date : 2019-10-01

Article Type : Research Paper

Abstract :Globally, Soil erosion is the major land degradation problem, which impacts seriously on economic and environmental status. Geospatial techniques support and provided quantitative approach to estimate soil erosion in different conditions. In the present study, Revised Universal Soil Loss Equation insert ignore into journalissuearticles values(RUSLE); integrated with GIS has been used to estimate soil loss in the part of coastal Odisha system. The study area, Ganjam block have undulating topography covering 0-35% slopes. The quantitative soil loss was estimated and classified into different classes and soil erosion map was generated. The soil erosion map is classified into seven classes from very slight insert ignore into journalissuearticles values(<5 t ha -1 yr -1 ); to extremely severe insert ignore into journalissuearticles values(>80 t ha -1 yr -1 );. The results indicate that 90.9% insert ignore into journalissuearticles values(22330 ha); of the study area falls in very low erosion category, which may be due to level topography and regular vegetation cover. The other erosion classes such as moderate, high and very high erosion occurred in the range of 2.12%, 2.23% and 1.49 %, respectively. The high soil erosion risk is spatially situated in the foothills and upper steep slope of the area. The results can certainly aid in implementation of soil management and conservation practices to reduce the soil erosion in the coastal Odisha regions of Eastern India.
Keywords : Soil erosion risk, land use, Remote sensing, GIS, coastal Odisha

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