浙江农林大学学报2016，Vol.33Issue(2)：239-246,8.DOI:10.11833/j.issn.2095-0756.2016.02.008
湘南石漠化地区植物群落物种多样性
Plant community and species diversity in rocky desert areas of Southern Hunan
摘要
Abstract
The diversity of plant species in 21 plots (5 000 km2) from Southern Hunan area was determined by calculating the indices of species diversity, richness, evenness, and dominance. Analysis included α and β di-versity analyses with the Simpson (S), Shannon-Wiener (SW), Cody (C), and Jaccard (J) Index. For rocky desert treatment and searching the regularities of growth and distribution of plant in rocky desert, applied with random quadrat sampling method and analysis by synthesis method. Results show there are overall presence of 63 families, 131 genera, and 173 species of vascular plants, 1 ) This included 15 families, 21 genera, and 24 species of trees; 34 families, 60 genera, and 74 species of shrubs; 32 families, 54 genera, and 63 species of herbs; 13 families, 22 genera, and 33 species of interlayer. 2 ) The α shows that rocky desert area with low species richness (S = 0.796 9-0.936 1, SW= 2.104 7-3.274 6) and a simple community structure with indi-vidual species having a relatively uniform distribution but a higher community diversity. Species composition for the tree layer was greatest in the potential rocky desert area (S = 3.274 6 and SW= 0.936 1). At the com-munity level, most of the trees were in the potential rocky desert. 3 ) The β showed that environmental differ-ences between different sample plot. The C Index revealed that, form light to severe desert area has different numbers species, the similarity coefficient of different rocky desert spot decreased. The J Index of different lev-el rocky shows the maximum is of 7.29 times to the minium. Conclusion which plants species are suitable in rocky desertification areas, contain the expansion trend of rocky desertification, improve the environment.关键词
森林生态学/石漠化/群落生态/α多样性/β多样性Key words
forest ecology/rocky desert/ecological community/αdiversity/βdiversity分类
农业科技引用本文复制引用
吴林世,曹福祥,彭继庆,曹基武,徐永福,董旭杰,胥雯..湘南石漠化地区植物群落物种多样性[J].浙江农林大学学报,2016,33(2):239-246,8.基金项目
国家林业公益性行业科研专项（201104016）；中南林业科技大学研究生创新基金资助项目（CX2014B31）；湖南省研究生创新基金资助项目 （）
