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Research on the current situation of mine exploitation and environmental problems based on the satellite remote sensing data in Eastern Hebei |
YU Lei1,2, LI Yingzhen1,2, GAO Junhua1, LIU Li1,2, XU Zhaojun1,2, ZOU Pu1,3 |
1. China University of Geosciences (Wuhan), Wuhan 430000, China; 2. Remote Sensing Center of Hunan Province, Changsha 410000, China; 3. Hunan Aerospace Yuanwang Technology Co.Ltd., Changsha 410000, China; |
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Abstract In order to ascertain the land occupied or destructed, the current situation of restoration and mine environment and the trends during the mineral resources exploitation in Eastern Hebei, using domestic high resolution remote sensing satellite data as the main data source with field investigations and interviews, the authors made investigation and research on the mineral resources exploitation and mine environmental problems in this area. Based on the extensive collection of geological data and remote sensing data, combined with field validation, the authors established the interpretation signs of land occupied in mine exploitation. Through the ArcGIS platform, they did statistical analysis of mine land occupied or destructed, and made investigation and research on the mine environmental problems caused by mining in the area, which include vegetation destruction, water pollution and mining subsidence. The results show that: ①In 2016, the total area of mine land occupied is 49 755.47 hm2, accounting for 2.26% of the study area, and there is an increasing trend year by year. ②Compared with the land occupied or destructed, the recovery extent of the mine environment in the study area is low, and the environmental treatment processes are lagging behind. The rate of treatment in 2016 is only 4.7%. ③206 mining points in the study area are close to the important water source, which threaten the safety of the water body. ④The area of mining subsidence caused by mining is large, which affects the surrounding villages and the ecological environment, and the total area is 24 351 hm2. ⑤The domestic high resolution remote sensing satellite data have the characteristics of high spatial resolution, high speed and economy. It can play an important role in the research of mine land occupied and mine environment survey.
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Received: 03 November 2017
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