International Journal of Ecology and Environmental Sciences

International Journal of Ecology and Environmental Sciences


International Journal of Ecology and Environmental Sciences
International Journal of Ecology and Environmental Sciences
2020, Vol. 2, Issue 3
Estimation of soil erosion in Nagwan watershed, Hazaribagh using universal soil loss equation

Raj Bahadur, RK Jaiswal, AK Nema, CD Mishra, Ashish Kumar

The assessment of soil erosion for any particular region is of prime importance for adaptation of suitable measures which help to render its impact. The present study is pertaining to assess the average annual soil erosion loss from Nagwan watershed, Hazaribagh district, Jharkhand. Rainfall, topographic characteristics, soil and vegetation mainly influence the rate of soil erosion from an area. Therefore, in order to produce a realistic estimate of rates of soil erosion a method need to be adopted which will takes these factors into account while estimating soil erosion losses. The Universal soil loss equation (USLE) is one of such equation. It is a product of six causative factors namely Rainfall erosivity factor (R), soil erodibilty factor (K), slope length factor (L), slope steepness factor (S), Cover and management factor (C), Support practice factor (P). The different factors such as R, K, L, S, C and P factor were calculated individually for the watershed. The average annual soil erosion loss is estimated as 12.39 tones ha-1year-1 with standard deviation of 49.95. The soil loss map was also generated by integrating all the erosion affecting factor in a raster calculator of ArcGIS platform
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