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首页> 美国卫生研究院文献>International Journal of Environmental Research and Public Health >Analysis of Plant and Soil Restoration Process and Degree of Refuse Dumps in Open-Pit Coal Mining Areas
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Analysis of Plant and Soil Restoration Process and Degree of Refuse Dumps in Open-Pit Coal Mining Areas

机译：露天矿区植物和土壤的恢复过程及垃圾场的程度分析

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摘要

Vegetation and soil restoration are the key to ecological reconstruction in the damaged areas of open-pit coal mining areas. Ecological stability is an important indicator of the degree of ecological restoration. In this study, the ecological stability and the process of plant and soil restoration were investigated at different refuse dumps in three coal mines, namely, the Wulanhada (WLHD) coal mine, the Liulingou (LLG) coal mine, and the Jinzhengtai (JZT) coal mine, in Jungar Banner. Results show that organic matter, total N, available N, and available K increased with the increase in restoration age at the two coal mines of WLHD and LLG. In the JZT coal mine, organic matter, total N, and available K firstly increased, and then slightly decreased with the increase in restoration age. The redundancy analysis indicates that most reclaimed mine soil properties (including soil moisture content, organic matter, total N, and available K) are positively correlated with plant species diversity in the three coal mines, while soil pH and soil bulk density showed a negative correlation with plant species diversity. Plant parameters increased with the years since revegetation, except the Pielou index for the WLHD coal mine, and the Pielou and Margalef indexes for the JZT coal mine. The Euclidean distance between the restoration areas and the natural reference areas decreased with the increase in restoration age. Our findings suggest that, in the three coal mines, the change law of ecological stability conformed to the logistic succession model. The same degree of ecological stability in different refuse dumps may correspond to different degrees of vegetation and soil development. This study emphasizes that ecological restoration in mining areas could benefit the structure of the plant community and the recovery of soil properties, which would eventually improve the ecological stability of coal mining areas.
机译：植被和土壤修复是露天煤矿受损地区生态重建的关键。生态稳定性是生态恢复程度的重要指标。在这项研究中，研究了乌兰哈达（WLHD）煤矿，六林沟（LLG）煤矿和金正台（JZT）这三个煤矿不同垃圾场的生态稳定性以及植物和土壤的恢复过程。煤矿，在准gar尔旗。结果表明，WLHD和LLG这两个煤矿的有机物，总氮，有效氮和有效钾随着恢复年龄的增加而增加。在JZT煤矿，随着恢复年龄的增加，有机质，总氮和有效钾先增加，然后略有减少。冗余度分析表明，三个煤矿中大多数开垦的矿山土壤特性（包括土壤水分，有机质，总氮和有效钾）与植物物种多样性呈正相关，而土壤pH和土壤容重则呈负相关。与植物物种的多样性。除WLHD煤矿的Pielou指数以及JZT煤矿的Pielou和Margalef指数外，工厂参数随恢复植被的年限增加。恢复区与自然参考区之间的欧氏距离随着恢复年龄的增加而减小。我们的发现表明，在这三个煤矿中，生态稳定性的变化规律符合逻辑后继模型。不同垃圾场中相同程度的生态稳定性可能对应于不同程度的植被和土壤发育。这项研究强调，矿区的生态恢复可以有益于植物群落的结构和土壤特性的恢复，最终将改善煤矿区的生态稳定性。

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