论文部分内容阅读
研究了缙云山顶极群落常绿阔叶林固定样方的结构和物种多样性16年后的发展变化．结果表明，固定样方中的维管束植物有45种，35属，19科．固定样方的群落结构变化不明显，群落层次清楚，银叶木荷为建群种，小叶栲、白毛新木姜子、川山研等为第Ⅱ亚层优势种．物种多样性有所降低，Simpson指数λ＝0．17，Shannn－Wiener指数H’＝1．90，但群落的均匀度较高而且相对稳定．
The structure and species diversity of fixed quadrats in the climax community of the climax community in Jinyun Mountain after 16 years of development were studied. The results showed that there are 45 species, 35 genera and 19 families of vascular plants in fixed quadrats. The community structure of the fixed quadrats did not change obviously, and the community level was clear. The population of Cunninghamia lanceolata was the constitutive species. Species diversity decreased, Simpson index λ = 0.17, Shannn-Wiener index H ’= 1.90, but the community uniformity was relatively high and relatively stable.