淮南八公山区不同生境条件下的土壤动物类群比较

Comparison of the soil animals′ group from different habitat in Bagongshan mountain of Huainan

2010年3月—4月对淮南市八公山区4种生境土壤动物进行了调查,获得各类土壤动物1965只,隶属4门12纲27目。其中优势类群为膜翅目和近孔寡毛目,常见类群为等足目、鞘翅目幼虫、鞘翅目成虫、柄眼目、鳞翅目幼虫、蜘蛛目和山蛩目,其余类群为稀有类群。研究结果表明:植被类型对土壤动物群落的结构特征有一定影响,不同植被条件下土壤动物个体及群落类群数存在差异。土壤动物多样性与均匀度指数呈正相关,与优势度呈负相关。4种生境的土壤动物群落之间都达到了中等相似水平。从土壤动物群落数量的垂直分布来看,0 cm^5 cm土壤层数量最大,有明显的表聚现象。

From March to April 2010,soil animal communities from 4 nature environments in Bagongshan mountain of Huainan were investigated.A total of 1965 soft animals were collected.They are belong to 27 orders,12 class and 4 phyla.The dominant genera were Hymenoptera and Oligochaeta,while Isopoda,Coleoptem larva,Coleoptem larva,Stylommatophora,Coleoptem larva,Araneae and Spirobolida were the ordinary groups and others were rear groups.The results suggested that the types of vegetation affected the community structure of soil animals,the individual number and group number of soil animal communities were different.The diversity and uniformity index of soil animals were positively correlated,but the diversity and the dominance were negatively correlated.The similarity index of soil animals among these 4 habitats was moderate in all communities.From the vertical distribution of soil animals in soil profile,the highest was in the 0-5 soil layer.The soil animals showed obvious surface assembly phenomenon.