太原市五种长绿园林树木区土壤动物群落组成和结构

对太原市五种长绿园林树木区土壤动物的调查,共获土壤动物样本8282头,隶属4门7纲19目30科48类。弹尾目、蜱螨目和线虫为优势类群;鳞翅目、鞘翅目、膜翅目等为常见类群。对土壤动物群落的结构和稳定性的调查得出:油松与草地群落(Ⅰ)的动物群落的多样性指数>白皮松与草地群落(Ⅱ)>圆柏群落(Ⅲ)>雪松群落(Ⅳ)>侧柏群落(Ⅴ),多样性指数的变异系数群落Ⅲ的最大,而群落Ⅱ最小;均匀性指数群落Ⅰ的最大,而群落Ⅳ的最小,均匀性指数的变异系数群落Ⅲ的最大,而群落Ⅱ最小;优势度集中性指数群落Ⅴ的最高,而群落Ⅰ的最低。群落Ⅰ和群落Ⅱ的个体数在各个月份中是最高的。人为因素增加了土壤的动物群落的复杂程度。

The Composition and Structure of the Soil Animals in Five Evergreen Garden Plants in Taiyun

Based upon the investigation of soil animals of five evergreen gardening in Taiyuan,a comparative study was conducted on the composition,vertical structure,and community diversity and so on.8282 individuals were collected,which belonged to 4 phyla,7classes,19 orders,30 families.The dominant group were Arcarina,Collembola,Nematoda.The common group were Coloptera,Lepidoptera,Diptera(L),Geophiomorpha,Oligchaeta and so on.Index of diversity of soil-animal community in P.tabulaeformis and grass(Ⅰ) >P.bungeana and grass(Ⅱ)>Sabina(Ⅲ)>Cedrrus(Ⅳ) >Platycladus(Ⅴ),variation coefficient of diversity index in community Ⅲ was the highest,while in community Ⅱwas the least;index of evenness in community Ⅰwas the highest,while in community Ⅳ was the least;variation coefficient of evenness index in community Ⅲ was the highest,while in community Ⅱwas the least;index of concentration in community Ⅴwas the highest while in community Ⅰ was the least;The complexity was acculenated by human activities.