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Effects of soil and topographic factors on vegetation restoration in opencast coal mine dumps located in a loess area

机译：黄土区露天煤矿堆场土壤和地形因子对植被恢复的影响

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摘要

Vegetation plays an important role in improving and restoring fragile ecological environments. In the Antaibao opencast coal mine, located in a loess area, the eco-environment has been substantially disturbed by mining activities, and the relationship between the vegetation and environmental factors is not very clear. Therefore, it is crucial to understand the effects of soil and topographic factors on vegetation restoration to improve the fragile ecosystems of damaged land. An investigation of the soil, topography and vegetation in 50 reclamation sample plots in Shanxi Pingshuo Antaibao opencast coal mine dumps was performed. Statistical analyses in this study included one-way ANOVA and significance testing using SPSS 20.0, and multivariate techniques of detrended correspondence analysis (DCA) and redundancy analysis (RDA) using CANOCO 4.5. The RDA revealed the environmental factors that affected vegetation restoration. Various vegetation and soil variables were significantly correlated. The available K and rock content were good explanatory variables, and they were positively correlated with tree volume. The effects of the soil factors on vegetation restoration were higher than those of the topographic factors.
机译：植被在改善和恢复脆弱的生态环境中起着重要作用。在黄土地区的安太堡露天煤矿，采矿活动严重扰乱了生态环境，植被与环境因素之间的关系还不太清楚。因此，了解土壤和地形因素对植被恢复的影响对于改善受损土地的脆弱生态系统至关重要。对山西平朔安太堡露天煤矿堆场的50个填海样地进行了土壤，地形和植被调查。这项研究中的统计分析包括使用SPSS 20.0的单向方差分析和显着性检验，以及使用CANOCO 4.5的去趋势对应分析（DCA）和冗余分析（RDA）的多变量技术。 RDA揭示了影响植被恢复的环境因素。各种植被和土壤变量显着相关。有效钾和岩石含量是很好的解释变量，它们与树木体积呈正相关。土壤因素对植被恢复的影响高于地形因素。

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