TITLE:
Prioritization of Sub-Watersheds in Ruparel Watershed, Rajasthan Based on Morphometric and Land Use/Land Cover Analysis Using Remote Sensing and GIS
AUTHORS:
Munahzah Meraj, Akram Javed
KEYWORDS:
Prioritization, Watershed Resource Management, Morphometry, Land Use/Land Cover Analysis
JOURNAL NAME:
International Journal of Geosciences,
Vol.13 No.2,
February
28,
2022
ABSTRACT: Watershed prioritization is considered as the most significant aspect in
watershed resource management and development program. The present work
attempts to prioritize seventeen sub-watersheds in Ruparel watershed of Alwar
district of Rajasthan, India. For prioritization of sub-watersheds,
morphometric and land use/land cover (LULC)
analysis were performed using remote sensing and GIS. Base map of the study
area has been derived from SOI toposheet on 1:50,000 scale whereas LULC mapping
was done using IRS P6 LISS III data. Standard methods for drainage morphometry
have been followed for computing morphometric parameters such as linear and
shape for seventeen sub-watersheds and allotted ranks based on their
relationship with erodibility and a compound value has been calculated for
final ranking. Five main LULC categories were computed and were assigned
priority ranks and subsequently a compound parameter was determined for final
ranking. Integration of both morphometric and LULC results reveal that SBW5,
SBW7, SBW12 and SBW16 are the common sub-watersheds that fall under high
priority, SBW3 falls under Medium category and SBW11 comes under low priority.
The results of the analysis can be used to identify the sub-watersheds which need immediate
restoration and will eventually help in watershed resource management for
sustainable development.