Effects of Different Vegetation Restoration Time on Understorey Plant Community and Soil Properties in Open-Pit Mine Dump
The impact of artificial vegetation restoration on understory plant community and soil properties in open-pit mine dump is related to the effect of ecological construction in China.Taking Heidaigou open-pit coal mine dump as the research area,on the basis of indoor analysis,using Kriging spatial interpolation method and comprehensive index method,the understory plant community and soil properties of the sample plots under different reclamation measures in the mine dump were studied in depth.The results are showed as follows.Firstly,the vegetation diversity of the poplar and pine(2009)plot is optimal,while the apricot plot has a better effect on improving soil quality.The soil enzyme activity of the apricot plot planted in 2002 is the highest,and the soil nutrient(organic matter,available phosphorus,available potassium)recovery effect of the apricot plot planted in 1998 is the best.Secondly,due to the influence of vegetation type,reclamation time,topography,interaction of different soil properties and human activities,the distribution pattern of understory vegetation index and soil property index in dump shows complex spatial heterogeneity.The research results provide a reference for the construction of the optimal vegetation reconstruction model in the mining area from the perspective of soil improvement.
Mine dumpLand reclamationPlant communitySoil PropertyVegetation restoration time
万方数据
维普
