青钱柳天然林物种多样性及空间分布格局研究

应用扩散系数(C)、丛生指数(I)、扩散指标(Iδ)、Cassie,R.M指标(CA)、平均拥挤度指标(M*)多种聚集度指标对永春牛姆林青钱柳天然林群落中乔木层的4个优势种进行空间分布格局测定,结果表明:华南吴茱萸与梨茶种群聚集程度较高,为聚集分布;青钱柳与狗牙锥种群呈随机分布。根据物种丰富度、物种多样性指数、生态优势度和群落均匀度指标对群落物种多样性数量特征进行测定,结果表明:该群落物种组成复杂,数量特征与群落结构、生境有密切关系。

Study on the Species Diversity and Spatial Patten of Cyclocarya paliurua Natural Forest

Using several indexes such as diffusion coefficient C,diffused index Iδ etc,Cassie,R.M index CA,M* and other,the spatial distribution pattern of the four dominant trees were presented,the results showed that the population of Cyclocarya paliurua and Camellia latilimba highly aggregated,belonged to aggregated distribution and the population of Castanopsis fargesii and castanopsis fargesii belonged to random distribution.The quantitative charateristics of the community being were measured according to species richess,species diversity index,species evenness and ecological diminace,the result showed that the species composition was complicated and the quantitative characteristic had a close relation with the community structure and its habitat.