Mintu JobAMIT RAJ TOPNO2023-10-312023-10-312022https://krishikosh.egranth.ac.in/handle/1/5810199955Remote sensing and GIS techniques were integrated with various morphometric parameters for the prioritization of Rarhu watershed. The most susceptible watershed among 21 sub watersheds was determined using linear, areal, and relief parameters. Using ArcGIS 10.8 software, toposheets from the Survey of India were used to generate drainage maps, NASADEM satellite imagery was used to create digital elevation and slope maps. Land use land cover was prepared from the Sentinel-2 satellite. The watershed codification and delineation were done according to the Soil and land use survey of India. From the analysis, it was found that Rarhu watershed stream has a dendritic pattern, and the highest order was 6th. The elongated shape was observed in the entire watershed with a coarse drainage texture. The average drainage density value of the watershed is 1.650 km/ km2 indicating more runoff with scanty vegetation and high relief and a high bifurcation ratio. Stream frequency of an average value of 1.447 indicated the mountainous relief and uneven topography. The relief parameters values indicated how the variation of elevation and slope could be helpful for implementing any soil and water conservation structures. A multi criteria decision making method Analytical Hierarchy Process (AHP), was used to prioritize different sub watersheds, which involved a pairwise comparison matrix between morphometric parameters. Eleven morphometric parameters directly related to erosion and runoff were selected for prioritizing. Final prioritization was given to SW-18, the most susceptible watershed that needs immediate action for various soil and water conservation structures for sustainable development. To check the current situation, a physical verification was performed using a GPS device and erosion and runoff affected areas were located. In order to avoid adverse effects on land and the environment, various soil and water conservation measures such as gully plugs, gabion structures, loose boulder structures, and contour trenches was prepared, which can be implemented in various locations for sustainable development of the watershed.EnglishThesis