【摘要】 2001～2002年间,对湖南衡阳地区的祁东、衡南、常宁3地紫色页岩母岩或母质的土壤动物进行了实地调查.在调查地区共获得各类土壤动物3936头,隶属于5门12纲39目143科209属253种,并定性、定量分析了该地区土壤动物群落结构组成、分布特点和季节变化.研究表明:紫色页岩土壤动物群落与肥沃地区土壤动物群落有很大差异,其土壤动物的优势类群为矛线目和蜱螨目.各生境的多样性指数H、优势度指数C和均匀度指数E也被分析.各生境群落间相似性系数很小.植被类型、土壤有机质含量是影响土壤动物群落结构的主要生态因子.各种分析显示,甲螨类和矛线虫类是紫色页岩土基形成的主要"拓荒者".更多还原

【Abstract】 Soil animals communities structure were investigated in three counties of Qidong, Hengyang, Changning of Hunan Province,China during 2001～2002. Totally 3 936 individuals soil animals were collected in five different habitats. 253 species found, belong to 209 genera, 143 families, 39 orders, 12 classes, 5 phyla. The dominance, evenness, richness, diversity(H’) and DG index were determined ,and similarity coefficients(q) among soil animals communities were analysed. Also, both stratificational and horizontal pattern of soil animals in the areas were examined. The results showed that Acaraina, Hymenoptera and Dorylaimida were the dominant groups in the three plots. The nurture condition in soil is the key factor of effect on the distribution of soil animals.The main factors which result in the difference are analyzed. Dorylaimida and Oribatida are mostly pioneers in forming soil.更多还原