摘要
对湘西吉首喀斯特地貌区4种典型生境中的地区土壤动物进行了调查研究,共获标本1762只,隶属于4门11纲26目,其中优势类群为蜱螨目、弹尾目、膜翅目,占总捕量的17.46%.4种生境土壤动物种类组成很相似,在垂直分布上具有明显的表聚性.在多样性分析中,多样性指数和均匀性指数在各生境表现为枞木林>杂木林>果木林>菜地,而在3类土壤动物中则表现为大型土壤动物大于中、小型土壤动物.吉首市土壤动物季节性表现为:冬春季密度较低,夏秋季密度较高.
According to the investigation on the soil fauna in Jishou city, 1 762 specimens were collected, which belonged to 4 phylums, 11 classes and 26 orders. The dominant groups were Acarina, Collembola and Hymenoptera, accounting for 17.46% of the total. The compositions of soil fauna in 4 habitats were similar, and most of them concentrated in the surface. The diversity and evenness indexes in different habitats were in order as following： fir forest 〉 mixed forest 〉 fruit forest 〉 vegetable plot, while macrofauna were higher than meso-microfauna. The seasonal dynamics of soil fauna were that the density was lower in spring than that in autumn,
出处
《生命科学研究》
CAS
CSCD
2006年第4期333-337,共5页
Life Science Research
基金
湖南省教育厅科学研究项目(03c352)
福特基金资助吉首大学贫困生科技创新能力培养项目
