V.C.PatilU.K.Shanwad2016-07-222016-07-222006http://krishikosh.egranth.ac.in/handle/1/69218Action plan preparation of Medak Nala watershed and impact assessment of Katangidda Nala watershed were carried out using remote sensing and GIS technologies. Satellite data of IRS- 1C/1D for two seasons representing rabi (December 8 and 10, 2000 PAN + LISS III merged) and summer (March 15, 2001 LISS III) were used for preparing thematic maps and suggesting action plans for management of natural resources in Medak Nala watershed. Impact assessment of IWDP programme in Katangidda Nala watershed was done using IRS 1C/1D data of LISS III image of December 11, 1997 (pre-treatment) and November 15, 2002 (post-treatment). The water and agriculture resources action plans of Medak Nala watershed were prepared by integrating the thematic maps such as land use/land cover, soil resource inventory, hydro-geomorphology, slope etc. The results indicated that the present land use of the watershed (5,169 ha, 42.58%) is under kharif crop followed by rabi crop area (2,814 ha, 23.18%) and land with scrub (2,280 ha, 18.78%). The 20 soil series of the watershed were classified under Inceptisols, Alfisols, Vertisols and Entisols. Results of impact assessment of Katangidda Nala watershed revealed that the area under agriculture crops and forest land were increased by 671 ha (5.7%) and 1,414 ha (11.94%) respectively. This is due to the fact that more areas of waste lands and fallow lands were brought into cultivation. The vegetation vigour of the area was classified into three classes using NDVI. Substantial increase in the area under high and low biomass levels was observed (502 ha and 19 ha respectively). The benefit-cost analysis indicated that the use of remote sensing and GIS was cheaper by 2.2 times than that of conventional methods.Thesis