Journal of FARM SCIENCES, Vol 13, No 3 (2000)

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Impact Assessment of Soil and Water Conservation Structures in Wagarwadi Watershed

K.P. Gore, M.S. Pendke, D.N. Jallawar

Abstract


Wagarwadi watershed of 324 hectares was developed by College of Agricultural Engineering in collaboration with State Department of soil Conservation in the year 1991. The major works undertaken are nala bunding, cement plug, loose boulder dams, gabian structures, contour trenches, contour bunding and graded bunding. The two small nalas build up the drainage pattern and join the main stream. The runoff and soil loss of 142.4 mm and 6.17 tones/ha/year, respectively was measured against rainfall of 927 3 mm during the year 1997. About 1622.58 tones of soil has been deposited under various structures. The improvement at 29.5 % to 67.62% in crop productivity was observed in post development stage over pre development stage. Qualitative performance indicate the reduction of 3 to 24.66 % in cross sectional area of loose boulder dams and 75 % of siltation in contour trenches and no measurable changes in other structures.

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