Damage on eco-environment and re-vegetation patterns of tailings in Shewushan Gold Mine
An Junzhen, Cai Chongfa, Luo Jinxuan, Li Chaoxia, Gao Yayu
1. Institute on Soil and Water Conservation, Gansu Province, 730020,Lanzhou;2. College of Resource and Environment,Huazhong agricultural university,430070,Wuhan:China
Abstract：Serious damage on ecological environment happened due to gold mine exploiting. According to the theories of vegetation restoration and ecological reconstruction, we analyzed the damage in mining area and explored the best model of vegetation restoration and ecological reconstruction. The results showed that gold mine exploition caused the destruction of soil structure, the loss of soil nutrient, the enrichment of heavy metal, and the reduction of species diversity and the single structure of plant community. Based on the analysis of the limiting factor of environment and the existing model of vegetation recovery, we indicated that reasonable match of arbor, shrub and grass was very important,especially the shrub and grass. The best method of vegetation restoration should follow the order of pioneer plant, local grass, shrub and arbor. The results of this study would finally provide a theoretical reference for gold mine tailings vegetation recovery and similar ore slash ecological reconstruction.
2013, Vol. 11 
