Geomorphological and Land Use / Land Cover Studies of Dhubdhubi Basin: District Solapur, Maharashtra

Abstract

A drainage basin is simply the area that gathers water from precipitation and delivers it to a larger stream, lake or ocean. It is an area limited by a drainage divide and occupies by a drainage network wherein the upstream drainage basin supplies water and sediment to the lower parts reflecting the upstream geologic and hydrologic character of watershed. In the present study the morphometric analysis is quantitatively done with (ARC GIS 10.0) and ERDAS which is a powerful tool and it is advanced very easily measuring basin length, basin, area, automatic creating of drainage network, stream order, stream length, circular area of basin etc. Fragments in the creation of basin, delineation of drainage network, stream length, flow direction and stream orders. Using Arc Gis technique the work of mapping, statistics, analysis, displaying the data and output is done. The Land Use and Land Cover map of the study area shows total area under study is 478.67 sqkm, contain total built up coverage at about 4.89342sqkm. High concentration of settlement situated in Walsang and Karajgi which covers north& West side of the study area. The water bodies that are present in the study area are Dindur Lake, Achegaon Lake and Shirpanhalli Lake which covers area 3.57606 sqkm (Hoston (1956) and strahler (1964).GIS study allows reliable most accurate and most updated database on land resources. It has also been very useful in deriving geo-morphometric parameters. In the present study GIS software are used to preparation of Base map, elevation map and base map of dhubdhubi basin. Keyword: Dhubdhubi basin, watershed Morphometric analysis, LULC, GIS