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Morphometric Analysis of Patapur Micro-watershed in North-Eastern Dry Zone of Karnataka Using Geographical Information System: A Case Study

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Title Morphometric Analysis of Patapur Micro-watershed in North-Eastern Dry Zone of Karnataka Using Geographical Information System: A Case Study
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Creator B. D. Premanand, U. Satishkumar, B. Maheshwara Babu, S. K. Parasappa, Mallikarjuna M. Dandu, Ibrahim Kaleel, N.L. Rajesh and S.A. Biradar
Department of Agricultural Engineering, College of Agriculture, UAS, Dharwad, Karnataka, India
 
Subject Morphometry, Micro-watershed, QGIS techniques, DEM
 
Description Not Available
The application of remote sensing and geographical information system for the analysis of
morphometric parameters are found to be of immense utility in watershed prioritization for
soil, water conservation and natural resources management at micro level.
Geomorphological analysis is the systematic description of watershed geometry and its
stream system. These parameters directly or indirectly reflect the response of entire
watershed based on causative factors that are affecting runoff and sediment loss. To
prepare a watershed development plan, morphometric analysis have been studied in the
Patapur micro-watershed (488.75 ha), being located at Raichur district of Karnataka. The
boundary of the watershed was digitized from the SOI (Survey of India) toposheet and also
DEM and slope maps were prepared with the help GIS techniques (QGIS). The
morphometric parameters such as linear, aerial and relief aspects have been determined to
understand the watershed characteristics. In the Patapur micro-watershed the bifurcation
ratio (Rb) was varied from 1.75 to 4.0 with average of 2.88 which indicates that on
undistorted geologic structure and drainage system of moderate peaks and lower order
streams. The values of form factor (Rf), shape factor (Sb), circulatory ratio (Rc) and
elongation ratios (Re) were 0.329, 2.28, 0.512 and0.647 respectively which indicates
moderately elongated micro-watershed with leading moderate influence on time
parameters. The estimated values of relief, relief ratio (Rr) and relative relief (RR) were
found to be 114 m, 0.130 and 0.05 respectively, these indicates the possibly moderate
erosion. Over all study suggests that the watershed should be treated with soil and water
conservation measures
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Date 2019-11-13T03:56:11Z
2019-11-13T03:56:11Z
2018-04-10
 
Type Article
 
Identifier B. D. Premanand, U. Satishkumar, B. Maheshwara Babu, S. K. Parasappa, Mallikarjuna M. Dandu, Ibrahim Kaleel, N.L. Rajesh and S.A. Biradar, 2018. Morphometric Analysis of Patapur Micro-watershed in North-Eastern Dry Zone of Karnataka Using Geographical Information System: A Case Study, International Journal of Current Microbiology and Applied Sciences7, 853-866.
ISSN: 2319-7706
http://krishi.icar.gov.in/jspui/handle/123456789/24671
 
Language English
 
Relation Not Available;
 
Publisher E P Excellent Publishers