Abstract
The Muli coal mine is the largest open-cast coal mine in the Qinghai-Tibet Plateau, and it consists of two independent mining sites named Juhugeng and Jiangcang. It has received much attention due to the ecological problems caused by rapid expansion in recent years. The objective of this paper was to monitor the mining area and its surrounding land cover over the period 1976–2016 utilizing Landsat images, and the network structure of land cover changes was determined to visualize the relationships and pattern of the mining-induced land cover changes. In addition, the responses of the surrounding landscape pattern were analysed by constructing gradient transects. The results show that the mining area was increasing in size, especially after 2000 (increased by 71.68 km2), and this caused shrinkage of the surrounding lands, including alpine meadow wetland (53.44 km2), alpine meadow (6.28 km2) and water (6.24 km2). The network structure of the mining area revealed the changes in lands surrounding the mining area. The impact of mining development on landscape patterns was mainly distributed within a range of 1–6 km. Alpine meadow wetland was most affected in Juhugeng, while alpine meadow was most affected in Jiangcang. The results of this study provide a reference for the ecological assessment and restoration of the Muli coal mine land.
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This research was supported by the Science and Technology Service Network Initiative of the Chinese Academy of Sciences (STS) (KFJ-EW-STS-125) and the National Natural Science Foundation of China (General Program) (41171400).
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Qian, D., Yan, C., Xing, Z. et al. Monitoring coal mine changes and their impact on landscape patterns in an alpine region: a case study of the Muli coal mine in the Qinghai-Tibet Plateau. Environ Monit Assess 189, 559 (2017). https://doi.org/10.1007/s10661-017-6284-9
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DOI: https://doi.org/10.1007/s10661-017-6284-9