福建永春油杉天然林群落结构及物种多样性研究

Study on the Community Structure and Species Diversity of Keteleeria fortunei Natural Forest in Yongchun, Fujian Province

在对福建永春油杉天然林群落系统调查的基础上,对该群落的植物区系成分、结构特征和物种多样性进行了研究。结果表明:该群落共有维管束植物131种,隶属于60科111属。包括藤本植物在内的高位芽植物占总数的71·75%,区系组成以泛热带成分较高,群落结构较为复杂。物种多样性指数(Shannon-Wiener指数)以草本层最高,为2·2451。

The floral composition, community structure and species diversity of Keteleeriafortunei natural forest in Yongchun, Fujian province were explored by the method of community investigation in this paper. Altogether there were 131 species of vascular plants from 60 families and 111 genera in this Keteleeriafortunei community, and Phanerophytes （including liane plants） accounted for 71.75% of the total species. The floristic analysis of geographic element indicated that pan-tropic elements were the dominant, and community structure was complicated. The Shannon-Wiener diversity index of herb layer was the highest （2. 2451 ） in this community.