珠海市淇澳岛肉实树群落及其物种多样性特征

Characteristics of Sarcosperma laurinum Community and Species Diversity from Qi-ao Island in Zhuhai City, Guangdong Province

摘要: 对珠海淇澳岛地区肉实树占优势的植物群落进行研究，结果表明：（1）肉实树群落中共有维管植物38科51属61种，种类组成具有极强的南亚热带性质；（2）年龄结构显示群落的主要优势种属于稳定型种群，群落总体处于稳定状态；群落的频度指数规律为A>B>C>DD=13.70，H=4.12，均匀度指数为E=0.39，E’=0.82，群落物种多样性指数和均匀度指数均较高，接近典型南亚热带常绿阔叶林顶极群落类型。

Abstract: Results from a study on Sarcosperma laurinum communities from Qi-ao Island in Zhuhai city, Guangdong province,showed that: (1) 61 species of vascular plants belonging to 38 families and 51 genera were found in the Sarcosperma laurinum community, with the floristic components of the community exhibiting a south subtropical property; (2) Analysis for the age structure of the community showed that the dominant species belonged to some stable populations,and the frequency index of the community was A>B>C>DD=13.70,H=4.12,E=0.39,E'=0.82.Results indicated that the diversity and evenness indices were closed to those of a climax community from a typical subtropical evergreen broad-leaved forest.