Abstract
Soil erosion, if remain non attentive, will increase the sediment load of the river and also affecting the life of the hydraulic structures constructed across it. Hence, proper investigations related to the soil erosion is very much essential for watershed planners and designers. In the present study, morphometric analysis is carried out for basic, linear, areal, shape and landscape aspects using 28 morphometric parameters for Bhima river watershed to prioritize and categorized it based on its erosive potential. Total 48 toposheet of Survey of India of the scale 1:50,000 are used to delineate the watersheds for the preparation of base map containing information about drainage, contours, etc. so as to ensure accuracy and quality of the work. The All India Soil and Land Use Survey (AISLUS) codification is adopted for the study area. According to AISLUS, the study area falls under region 4, covered in 19 watersheds. Morphometric parameters in Arc-GIS software and compound factor method is employed to identify the sub-watersheds which are susceptible to soil erosion. Final Priority Ranking (FPR) based category map of watersheds is reported in this study by categorized it under five categories indicating % area of each category (very high category: 15.94%; high category: 23.50%; medium category: 12.73%; low category: 23.90%; and very low category: 23.93%). Based on the findings, this study is suggesting suitable sites soil conservation practices for reducing the sediment load in Bhima river watersheds as well as Ujjani reservoir, which will be useful to the concerning authorities for better management.
Multivariate Logistic Regression Model
for Soil Erosion Susceptibility Assessment
under Static and Dynamic Causative Factors
