中文摘要：

以深圳城市森林小群落为例,研究群落个体数与直径、高度、物种数之间的结构相关性;选用10种多样性指数,分别以丰富度、均匀度、物种多样性的综合指数值和排序,描述和比较深圳城市森林小群落多样性差异和水平;提出蓄积指数的概念和群落综合指数K以及应用于多样性比较的方法;指出多样性分析应考虑胸径结构,树高结构,并统一可比性标准.结果表明：深圳市各小群落的多样性综合指数K值在3.21～16.65之间,以蓄积水平为Ⅰ级的桉树群落多样性最小,平均综合指数K值为9.11.

英文摘要：

Based on survey and statistic analysis, this paper takes urban forest microcommunity in Shenzhen as a case study. The structure relativity among individual number of communities and its diameter, height, species number was studied. With the ordination of 10 diversity indices value, including species richness index, species diversity index, evenness index and ecological dominance, the diversity differences of forest communities were analyzed in Shenzhen. This paper put forward conception of cumulative index, community synthetic index （K） and its application. The results showed that analysis of the diversity should fully consider the height, diameter and structure, and that the comparative standard also should be identical. The value of diversity synthetic index of various microcommunities in Shenzhen was between 3.21 - 16.65 and the average value of synthetic index was 9.11.