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impact assessment of mining activities on surface and sub-surface water condition of ramgarh, jharkhand, india using geospatial techniques
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نویسنده
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jha sumit kumar ,warwade pratibha ,mahto sandeep kumar
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منبع
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journal of mining and environment - 2021 - دوره : 12 - شماره : 3 - صفحه:651 -665
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چکیده
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This work illustrates the impact of excessive mining on the precipitation trends and ground water condition of the ramgarh district over a period of 12 years (2007- 2018). the landsat 8 and landsat tm- 5 data is processed under arc-gis in order to compare the lulc maps. out of 7 classified classes, the results obtained indicate the expansion of the mining area, barren land, settlement, and water body by 10.95%, 10.07%, 3.44%, and 0.43%, while a reduction in the forest, fallow, and crop land by 11.24%, 11.31%, and 2.34% respectively. the trmm 3b43 data is used to trace out the annual precipitation values of 5 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 1.714 and 0.137 in the pre- and post- monsoon period shows a decrease in the ground water level at the rates of 0.103 m/year and 0.017 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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کلیدواژه
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land use/cover (lulc)، arc-gis ,trmm 3b43 ,mann-kendall test ,sen’s slope estimator
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آدرس
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central university of jharkhand, school of engineering & technology, department of water engineering and management, india, central university of jharkhand, school of engineering & technology, department of water engineering and management, india, central university of jharkhand, school of engineering & technology, department of water engineering and management, india
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پست الکترونیکی
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skmahto17@gmail.com
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Authors
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