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›› 2017, Vol. 34 ›› Issue (3): 318-328.DOI: 10.7523/j.issn.2095-6134.2017.03.006

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Influence mechanism of coal mining subsidence on soil quality and restoration measures in west China aeolian sand area

SHI Peili1, ZHANG Yuxiu1, HU Zhenqi2, MA Kang1, YU Bingbing1   

  1. 1. School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China;
    2. College of Geoscience and Surveying Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China
  • Received:2016-10-08 Revised:2016-12-23 Online:2017-05-15

Abstract: The ecological environment is fragile in west China aeolian sand area. Large-scale underground coal mining causes soil collapse and ground fissures, which lead to a series of ecological and environmental problem such as groundwater level fall, serious loss of soil moisture and nutrient, decrease in soil enzyme activities, reduction in soil microbial communities and population, soil sandy desertification, vegetation damage, and destruction of biological diversity. This work analyzes the influence mechanism of underground coal mining on soil chemical and physical properties, vegetation, and soil microorganism, and proposes the corresponding restoration measures of destructive soil environment in west China aeolian sand area. In addition, this work suggests that the future research should focus on the restoration of soil quality and the successional law of soil microbial diversity. These findings would provide theoretic foundations and technical supports for supervising land reclamation and ecological constructions in coal mining subsidence area.

Key words: underground mining, aeolian sand area, soil chemical and physical properties, microbial diversity, restoration measures

CLC Number: