湖南永州地区不同生境条件下钙质土土壤动物多样性

对湖南永州5种不同生境条件的钙质土土壤动物多样性进行了调查。共获得土壤动物2 024只,隶属于4门10纲30目,其中线虫类、蜱螨类、弹尾类为优势类群,占总捕量的66.10%;常见类群9类,占总捕量的27.17%。从水平分布上看,5种生境相似程度较大,其中尤以苗圃和杉木林、苗圃和柏树林、苗圃和荒地之间的相似程度较高。从垂直分布上看,5种生境中只有苗圃地较为明显,而各种生境中土壤动物具有明显的表聚性。苗圃、杉木林、柏树林3种生境土壤动物群落的多样性及均匀度呈基本一致趋势,且各生境间差别不大。

Calcareous soil's faunal diversity in different habitats of Yongzhou, Hunan Province

The investigation on the calcareous soil's faunal diversity in 5 different habitats of Yongzhou,Hunan Province showed that a total of 2 024 soil animals were observed,which belonged to 4 phylums,10 classes,and 30 orders.The dominant groups were nematoda,acarina,and collembola,accounted for 66.10% of the total,and the common groups were of 9 sorts,occupying 27.17% of the total.The test habitats had higher similarity in soil faunal horizontal distribution,and the similarity level was more significant between nursery garden and Chinese fir forest,nursery garden and cypress forest,and nursery garden and wasteland.As for the vertical distribution,only nursery garden had clear layers,and all habitats had an obvious surface aggregation of soil animals.The diversity and evenness of soil faunese in nursery garden,Chinese fir forest,and cypress forest were consistent with each other.