The author using Tullgren method made a study on vertical migrating and cluster analysis of the soil mesofauna at the Yellow River Delta(YRD) in Dongying Halophytes Garden of Shandong Province for the first time. The results showed that the soil mesofauna tended to gather on soil surface in most samples, but the vertical migrating greatly varied in different seasons and environment conditions. Acari was dominant group. The number distributions of Collembola were different between 10 samples. The index of diversity of the soil meso fauna in the YRD Dongying Halophytes Garden was correlated with the index of evenness. The number of Acari was large and this result infected the other spicies and numbers. The densities of dominant groups made great contribution to the result of cluster analysis, there was significant difference among communities in different habitats by cluster analysis with both Bray-Curtis similarity coefficient and Jaccard similarity coefficient.%采用Tullgren干漏法,研究位于山东省东营市黄河三角洲盐生植物园内土壤动物垂直分布情况并进行聚类分析.结果表明,在调查的10个样点中,土壤动物的垂直分布在不同季节和不同生境条件下变化很大,但是大多数样点内的表聚性特点明显；蜱螨目是该地区的主要优势类群,另一优势类群弹尾纲个体数量变化大,分布存在显著差异；黄河三角洲盐生植物园内土壤动物的多样性与均匀度变化趋势一致.各样点内优势类群蜱螨目的数量巨大,严重影响其他物种的数量和分布,对聚类分析影响较大,最终导致Bray-Curtis相似性系数和Jaccard相似性系数的聚类分析结果差异明显.
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