Vegetation Diversity of Different Restoration Modes in the Abandoned Open-pit Mines in Ankang City
This article investigates the vegetation restoration areas of four typical open-pit mining wastelands in Ankang City.Representative plant communities are taken as the research objects,and the composition,structure,and diversity of different plant communities are analyzed.The impact of vegetation restoration models on community structure characteristics and plant species diversity is elu-cidated,which has important guiding significance for the vegetation restoration and reconstruction of abandoned open-pit mining wastelands in Ankang.(1)The results showed that there is a total of 18 families,33 genera,and 36 plant species distributed in the four communities surveyed.Among them,there are 3 families,3 genera,and 3 species of arbor trees,accounting for 8.33％;3 families,3 gene-ra,and 3 species of shrub trees,accounting for 8.33％;there are 12 families,27 genera,and 30 spe-cies of herbs,accounting for 83.34％.(2)Through a series of mine restoration measures,vegetation communities have been well restored to varying degrees,and there are certain differences in vegetation coverage among different modes,with Robinia pseudoacacia forest>Pinus tabulaeformis forest>Platycladus orientalis mixed with Robinia pseudoacacia forest,indicating the artificial vegetation res-toration effect is significantly better than natural restoration.(3)By comparing different restoration modes,it was found that the artificial configuration method of the tree plus shrub and grass communi-ty composed of black locust,Lindley's butterflybush,and miscanthus has obvious advantages.Lindley's butterflybush can be used as a pioneer shrub species,while herbaceous plants such as white clover,miscanthus,crowfoot grass,and wild oat can be used as pioneer grass species.
万方数据
维普
