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Erschienen in:
2014 | OriginalPaper | Buchkapitel
18. Integrated Approach of Remote Sensing and GIS for Watershed Management: A Case Study of wga-2a Sub-Watershed of Godavari River Basin, Nagpur, Maharashtra
verfasst von : Subrata Chatterjee, Sujay Bandyopadhyay
Erschienen in: Landscape Ecology and Water Management
Verlag: Springer Japan
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Abstract
A watershed is a fluvial geomorphological unit in which all the precipitation and streams drain into a common outlet such as the mouth of a bay or any point along a stream channel. Stream flow and the water quality of a river are affected by both anthropogenic and natural factors existing within the catchment area, hence it is vital to study watershed and its management. This includes identification of problems and issues impacting the natural resources of the watershed and recommending management solutions that will benefit the community, the economy and the environment and would bring about a sustainable development within the watershed.
The present study seeks to generate various thematic maps in GIS domain like Drainage, Geomorphology, Road, Rail, Canal, Forest, Settlement, Land Use Land Cover etc. using high resolution satellite data (IRS LISS IV and Cartosat-1). The application of Analytical Hierarchy Process (AHP) has been used to give suitable weightage value to various factors in each layer. In this paper, Land Resource Development Plan (LRDP) map has been generated to suggest conservation of forest, Farmbund, Social forestry etc. to protect soil loss, soil erosion and also Water Resource Development Plan (WRDP) map has been generated to suggest to make some structures like Canal, check dam, reservoir for the conservation of water resources. The future implication of the study would be to control damaging runoff and degradation of land and thereby conservation of soil and water.