Ms. Lifeng L. Zhang Profile

Lifeng L. Zhang

at China Univ of Mining and Technology (Beijing)

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Proceedings Article | 26 November 2014 Paper

Luobei graphite mines surrounding ecological environment monitoring based on high-resolution satellite data

Lifeng Zhang, Xiaosha Liu, Huawei Wan, Xiaoman Liu

Proceedings Volume 9263, 92632N (2014) https://doi.org/10.1117/12.2069232

KEYWORDS: Mining, Environmental monitoring, Satellites, Remote sensing, Error analysis, Minerals, Image processing, Image classification, Soil contamination, Ecosystems

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Graphite is one of the important industrial mineral raw materials, but the high content of heavy metals in tailings may cause soil pollution and other regional ecological environmental problems. Luobei has already become the largest production base of graphite. To find out the ecological situation in the region, further ecological risk analysis has been carried out. Luobei graphite mine which is located in Yabdanhe basin has been selected as the study area, SVM classifiers method with the support of GF-1 Satellite remote sensing data has been used, which is the first high-resolution earth observation satellite in China. The surrounding ecological environment was monitored and its potential impact on the ecological environment was analyzed by GIS platform. The results showed that the Luobei graphite mine located Yadanhe basin covers an area of 499.65 km², the main types of forest ecosystems ( 44.05% of the total basin area ), followed by agricultural area( 35.14% ), grass area( 15.52% ), residential area ( 4.34% ), mining area ( 0.64% ) and water area( 0.30% ). By confirming the classification results, the total accuracy is 91.61%, the Kappa coefficient is 0.8991. Overall, GF-1 Satellite data can obtain regional ecosystems quickly, and provide a better data support for regional ecological resource protection zone. For Luobei graphite mines area, farmland and residential areas within its watershed are most vulnerable to mining, the higher proportion of farmland in duck river basin. The regulatory tailings need to be strengthened in the process of graphite mining processing.

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