西北干旱半干旱区煤炭井工开采对土壤肥力质量的影响研究进展

doi:10.7523/j.issn.2095-6134.2020.04.002

摘要/Abstract

摘要： 西北干旱半干旱区是中国典型的生态脆弱区，煤炭地下开采诱发地质结构破坏和地表形变，导致土体沉降和地裂缝的产生，进一步造成土壤砂粒含量增加，孔隙度增加，保水能力下降，土壤养分流失，微生物种群受扰动，土壤酶活性受影响，最终导致土壤肥力质量降低。以采煤沉陷的机理及土壤结构变化规律为切入点，综述煤炭开采对土壤物理、化学和生物学性质的影响，分析西北干旱半干旱区煤炭井工开采对土壤肥力质量的影响机制，这些结果对于加快矿区沉陷土壤质量的恢复、土地复垦技术的研发和生态环境保护等具有理论指导意义。

关键词: 干旱半干旱区, 生态脆弱区, 采煤沉陷, 土壤质量

Abstract: The arid and semi-arid regions are typically ecologically fragile areas in China. Underground coal mining caused geological structure damage and surface deformation, resulting in land subsidence and ground fissures, and further leading to an increase in soil sand content and porosity, as well as a decrease in soil water retention capacity. Moreover, the loss of soil nutrients is triggered, the microbial community is disturbed, and soil enzyme activity is also affected. The soil fertility quality might be reduced ultimately by the mining. This paper mainly focuses on the mechanism of coal mining subsidence and change trend of soil structure, based on the effects of coal mining on soil physical, chemical, and biological properties, the mechanism of underground coal mining on soil fertility quality in the northwestern arid and semi-arid regions was discussed. The results have an important theoretical significance for accelerating the restoration of mining subsidence soil, development of land reclamation technology and ecological environment protection.

Key words: arid and semi-arid desert regions, ecologically fragile areas, coal mining subsidence, soil quality

中图分类号:

X37
X752

马康, 杨帆, 张玉秀. 西北干旱半干旱区煤炭井工开采对土壤肥力质量的影响研究进展[J]. 中国科学院大学学报, 2020, 37(4): 442-449.

MA Kang, YANG Fan, ZHANG Yuxiu. Influence of underground coal mining on soil fertility quality in the northwestern arid and semi-arid regions: a review[J]. , 2020, 37(4): 442-449.

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