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《Journal of Hubei University for Nationalities(Natural Science Edition)》 2018-01
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Vertical Differentiation of Species Composition and Biodiversity in the Forest Community of Huaban Basin in Xingdou Mountain

CHEN Siyi;AI Xunru;YAO Lan;CHEN Jun;School of Forestry and Horticulture,Hubei University for Nationalities;  
Based on data from 12 plots surveyed along the altitude in the Forest Community of Huaban Basin in Xingdou Mountain,we analyzed the variation of species diversity in different altitude.The results showed that:There are 82 species,63 genera and 36 families,995 individuals in total whose diameter at breast height(DBH) ≥1 cm.The evergreen tree species account for 449 individuals,33 species.Another 546 individuals are deciduous trees,belonging to 49 species.Only 5 species,57 individuals are coniferous species.With the elevation increasing,there is a transition in vegetation type from temperate coniferous and broad-leaved mixed forest into evergreen and deciduous broad-leaved mixed forest.All the five α diversity indexes increased to their highest at the altitude from 1 000 m to 1 200 m and then gradually decreased in general with increasing altitude.The β diversity of each community showed a downward trend as the elevation increases.The substitution rates of species composition between communities in different environmental gradients decreased gradually.The coefficient of community similarity of Jaccard between elevation gradient showed moderate dissimilarity and extremely dissimilarity.
【Fund】: 湖北省教育厅重点项目(D20122901);; 湖北民族学院博士基金启动项目(MY2017B028)
【CateGory Index】: S718.5
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