Impact Assessment of Mining Activities on Surface and Sub-Surface Water Condition of Ramgarh, Jharkhand, India using Geospatial Techniques
Publish place: Journal of Mining and Environment، Vol: 12، Issue: 3
Publish Year: 1400
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JMAE-12-3_004
تاریخ نمایه سازی: 18 مهر 1400
Abstract:
This work illustrates the impact of excessive mining on the precipitation trends and ground water condition of the Ramgarh district over a period of ۱۲ years (۲۰۰۷-۲۰۱۸). The Landsat ۸ and Landsat TM- ۵ data is processed under Arc-GIS in order to compare the LULC maps. Out of ۷ classified classes, the Results obtained indicate the expansion of the mining area, barren land, settlement, and water body by ۱۰.۹۵%, ۱۰.۰۷%, ۳.۴۴%, and ۰.۴۳%, while a reduction in the forest, fallow, and crop land by ۱۱.۲۴%, ۱۱.۳۱%, and ۲.۳۴% respectively. The TRMM ۳B۴۳ data is used to trace out the annual precipitation values of ۵ selected raster location points through Arc GIS. The annual precipitation under the mining regions (lower Mandu, Ramgarh, Bhurkunda) shows a decreasing trend. The Mann-Kendall test and Sen’s slope estimator method is used in order to evaluate the ground water pattern in the pre- and post-monsoonal conditions. The Mandu block, the densest mining region of the district with the positive Z values of ۱.۷۱۴ and ۰.۱۳۷ in the pre- and post- monsoon period shows a decrease in the ground water level at the rates of ۰.۱۰۳ m/year and ۰.۰۱۷ m/year, respectively. The continuous rise in the mining activities has created an alarming shift of weather pattern and deteriorated ground water table in Ramgarh.
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Authors
S. Jha
Department of water engineering and management, School of Engineering & Technology,Central University of Jharkhand, Ranchi, India
P. Warwade
Department of water engineering and management, School of Engineering & Technology,Central University of Jharkhand, Ranchi, India
S. Mahto
Department of water engineering and management, School of Engineering & Technology,Central University of Jharkhand, Ranchi, India
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