菏泽牡丹园土壤动物群落结构和相似性研究

对菏泽牡丹国土壤动物群落组成、数量分布、结构、相似性等方面进行了首次生态定量研究。通过调查研究发现,蜱螨(螨类)亚纲和弹尾(跳虫)目是菏泽牡丹园土壤动物的主要优势类群。群落结构中多样性指数较低,平均不足最大多样性指数的1/2。两种相似系数(Jaccard相似性系数和百分比相似性系数)的聚类结果差异明显,优势类群的数量对聚类结果影响很大,影响群落数量分布的因素均可影响聚类结果。

The Structure and Similarity Study of Soil Mesofauna of Heze Peony Garden

The writer, for the first time, made a study of ecological quantitative in group compose, number distribution, structure, similarity etc. of the soil mesoiauna in Heze Peony Garden. The result shows that Acari and Collembola are dominant groups. Diversity is low, less than that of 1/2 times of the most diversity. There are significant differences among communities in different habitats by cluster analysis with both Jaccard Similarity coefficient and Percentage similarity coefficient. The quantity of dominant groups great affect the cluster results, so is all the factors which affect the group number distribution.