Vol. 6, Issue 3 (2018)
Assessment and morphometric analysis for prioritizing erosion-prone area in RS and GIS environment
Author(s): Gautam R Patel, Mukesh M Trivedi and Chimanlal S Baladhiya
Abstract: The land and water, limited in nature are decreasing continuously. Planning and management of these natural resources requires enormous data. Geo-morphological characteristics of a watershed are commonly used parameters for developing the regional scale hydrological models for resolving various hydrological issues of the ungauged watersheds. Applications of geographical information system (GIS) techniques are much time saving, efficient, and appropriate for geospatial planning. GIS can handle complex issues and huge databases for manipulation and retrieval. An accurate understanding of the hydrological behaviour of watershed is important for effective management. In India most of the watersheds are ungauged. So, the morphometric characterisation of watershed can play an important role in inadequate data collection. The morphometric characteristics of a watershed represent its attributes and can be helpful in synthesizing its hydrological behaviour. The present study was focused on prioritization of 18 subwatersheds of the Panam catchment based on GIS environment through morphometric analysis. Morphometric analysis and prioritization of watersheds are very important for water resource modelling and flood management practices. Priority of watershed was allotted on the basis of compound parameter value, which means that the level of soil erosion increased with decreased in values of compound parameters or the priority increases with decrease in their values. The ascending order of priority of watersheds according to compound parameter was MHL43nf10II, MHL43nf10, MHL43nf3, MHL43nf16, MHL43nf13, MHL43nf9, MHL43nf2, MHL43nf15, MHL43nf1, MHL43nf10I, MHL43nf14, MHL43nf7, MHL43nf4, MHL43nf11, MHL43nf12, MHL43nf8, MHL43nf6 and MHL43nf5. The watershed MHL43nf10II possessed highest priority 1 which indicated greater degree of erosion and hence, it becomes potential candidate for applying soil and water conservation, vegetation, and forestation etc. measures. While, the other watersheds with lower priorities were subjected to lower degree of erosion. Thus the morphometric and runoff potential properties determined for this basin as whole and for each watershed would be useful for the sound planning of water harvesting and groundwater recharge projects.
Pages: 3308-3318 | 374 Views 42 Downloads
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How to cite this article:
Gautam R Patel, Mukesh M Trivedi, Chimanlal S Baladhiya. Assessment and morphometric analysis for prioritizing erosion-prone area in RS and GIS environment. Int J Chem Stud 2018;6(3):3308-3318.
