Journal of Ecology and Rural Environment ›› 2019, Vol. 35 ›› Issue (4): 538-544.doi: 10.19741/j.issn.1673-4831.2018.0100

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Research of the Application of Remote Sensing Technology in Monitoring Water Pollution Caused by Coal Suspended Matter in Typical Coal Mining Areas of Western China

WANG Zhe, YU Jiang-kuan, LU Yun-ge   

  1. China Aero Geophysical Survey and Remote Sensing Center for Land and Resources, Beijing 100083, China
  • Received:2018-03-09 Online:2019-04-25 Published:2019-04-25

Abstract:

Based on the data of satellites Sentienl-2A and ZY-3, the study used the method combining visual interpretation with high spatial resolution and SWIR empirical model to extract, sort and do statistical analysis of the water pollution caused by coal suspended matter in two typical mining areas of western China, Shendong and Zhungeer. The results show that the water pollution is quite serious both in surface mining and underground mining areas. Polluted water in Shendong coal mining area accounts for 86.44%, while that in Zhungeer coal mining area represents 74.84%. The main factors resulting in water pollution are coal dust and coal-washing wastewater. Water bodies within coal mining areas, of nearby river systems and even in parts of the Yellow River near Zhungeer coal mining area are polluted from slight to serious degrees. Meanwhile, water bodies which are close to coal mining areas with weak mobility and slow circulation are more easily polluted. The method used in this paper is better than traditional visual interpretation analysis used in periodic monitoring in coal mining areas, because it does not need much human intervention and has a reliable basic theory. It can assess the condition of water bodies rapidly and provide information for regulators.

Key words: coal mining areas of western China, suspended matter, water pollution, remote sensing reflectance, Sentienl-2A

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