东洞庭湖环湖丘岗区土壤动物群落多样性研究  

Soil Animal Community Diversity in the Hilly Areas Around East Dongting Lake

作　　者：张秀娟[1] 勾影波[2] 杨晨利[1] 

机构地区：[1]湖南理工学院体育系,湖南岳阳414006 [2]常熟理工学院生物系,江苏常熟215500

出　　处：《湖南理工学院学报（自然科学版）》2008年第1期73-77,共5页Journal of Hunan Institute of Science and Technology(Natural Sciences)

基　　金：湖南省自然基金资助项目(04JJ3066);湖南省教育厅资助项目(03C151)

摘　　要：自2003年11月至2004年10月在洞庭湖环湖丘岗区选取茶林、竹林、阔叶林和真阔混交林4个样地每月固定时间对其大型、中小型干生土壤动物分别取样.全部调查共获得的土壤动物31298只、30类分别隶属于4门13纲29目.按平均数量及其稳定性排序,等翅类、膜翅类、双翅目幼虫、鞘翅目幼虫类群最重要.4个土壤动物群落多样性指数(H′)排序为茶林>阔叶林>针阔混交林>竹林,均匀度指标变化呈正相关,与优势度呈负相关.Jaccard系数(q)表明,4个土壤动物群落彼此间类群组成相似性极高;4个生境土壤动物的个体数和类群数均具有明显的表聚性,并随土层加深而递减.土壤动物的个体数量以冬、春二季最丰富,夏季最少,季节波动性比较大.During the experimental period from Nov. 2003 to Oct. 2004, a comparative research was conducted concerning macrofaunas and mesorofaunas around The hilly areas around east Dongting Lake. Four kinds of samples were selected at scheduled times of each month. The total samples gathered were 31298 individuals, namely 30 genera, belonging to 29 orders, 13 classes and 4 phyla. In light of quantities and stability, Isoptera is the most humorous followed by, Hymenoptera, Diptera and Coleoptera respectively. The variety of index（H＇） was distributed as follows： tea forest, broad leaf, mixed needle and bamboo. This is closely correlated with the similarity, but not so with the richness of the communities. An analysis of Jaccard index（q）, suggests that the soil animal communities enjoy very high similarity; As soil becomes deeper, the number of individuals .and communities decrease. There is a large increase in individuals of soil animals during spring and winter, and a decrease in summer, clearly changing with seasons.

关 键 词：东洞庭湖环湖丘岗区 土壤动物 群落多样性 

分 类 号：O142.3[理学—数学]