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Study on Plant Investigate and Species Diversity of Shuikoushan Pb-Zn Mining Area in Hengyang

Li Gui;Tong Fangping;Liu Zhenhua;Chen Rui;Qin Wenxia;Hunan Forestry Academy;Guangxi State-owned Sanmenjiang Forest Farm;  
Investigated to the natural plant community and its structure characteristics on which abandonedland, around the barren hills and farmland of Shuikoushan Pb-Zn mining area lands in Hengyang, calculationand analysis of important values of plant species, evenness and species diversity index. The results showedthat: There were 29 families, 46 species of plants in the survey area, and the herbaceous plants has theadvantage of which including the dominant was the Gramineae and Compositae plants, both accounting for57% of the herb species. Relatively rare plant species in general, community composition and structure wassimple, the low level of species diversity and ecological fragile on that every sample. The highest diversityindex H was only 1.101, the highest richness index R was 1.478 and evenness index was also only 0.666. Therewere no significant differences between species and coverage at each sampling, smelting and other were asignificant difference of diversity index between the other three points, and it has no significant differencesbetween each other of the three sampling points, and the diversity index was order: smelterwaste damedgesKangjiawan selectionabandoned farmland. The evaluation result was in conformity with the actualsituation of local biodiversity basic, and it generally reflected the overall distribution of local plant diversity.
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