Vol. 5, Issue 1 (2017)

A study was undertaken to evaluate eight soil series belonging to Mustur micro watershed (Yadgir district) in North Eastern Dry Zone of Karnataka for soil erosion estimation using USLE model. Eight soil series were tentatively identified and mapped into twelve mapping units using GIS technique. These mapping units were grouped into soil erosion ratings as low, medium and high with the help of rainfall pattern and rainfall erosivity factor (R factor), Erodibility factor (K factor), Slope length and steepness factor (LS factor), Crop cover and conservation practice factor (C and P factor). Soil loss in different mapping units ranged from 3.41 to 25.24 presented in table 3. BMAkC(A)1, KLUmB(A)1, KLUmC(A)1, KLUmB2, PGLmB2, MSTcB2, KLRmB2, SHTcB2, SHTcC2, HSLbB2, HSLbC2 and KKRcC2 recorded the soil loss of 6.77, 3.41, 6.56, 15.02, 11.95, 12.40, 13.99, 12.81, 21.06, 15.07, 23.52 and 25.24 t ha-1yr-1 respectively. Lower rate of soil loss was recorded in BMAkC(A)1, KLUmB(A)1 and KLUmC(A)1 mapping units. Moderate soil loss was recorded in KLUmB2, PGLmB2, MSTcB2, KLRmB2, SHTcB2 and HSLbB2 mapping units and SHTcC2, HSLbC2 and KKRcC2 mapping units were recorded high.