浙江百山祖自然保护区不同海拔土壤动物群落结构及季节动态  

Community structure and seasonal dynamics of soil fauna at different altitudes in Baishanzu Nature Reserve of Zhejiang Province

作　　者：严莹[1] 李恺[1] 方燕[1] 

机构地区：[1]华东师范大学生命科学学院,上海200062

出　　处：《生态学杂志》2010年第9期1754-1761,共8页Chinese Journal of Ecology

基　　金：上海市科学技术委员会科研计划资助项目(06dzl2303)

摘　　要：2008—2009年,在浙江百山祖自然保护区沿5个不同的海拔梯度进行土壤动物调查,共获得土壤动物2409只,隶属3门7纲18目,优势类群为弹尾目和蜱螨目。对土壤动物群落进行多样性分析,结果表明:随海拔升高,Margalef指数、Shannon指数和Pielou指数总体呈降低趋势;从季节动态来看,5个海拔土壤动物群落总体变化趋势为Margalef指数夏季最高,秋冬缓慢降低,春季最低;Shannon指数从春季开始缓慢增高,到秋季达到最大值,随后下降,总趋势为秋季>夏季>春季>冬季;Pielou指数与Shannon指数的变化一致,Simpson指数则与Shannon指数的变化相反。From 2008 to 2009,an investigation was made on the soil fauna at five sites along an altitudinal gradient in Baishanzu Nature Reserve of Zhejiang Province. A total of 2409 soil animals were collected,belonging to 18 orders,7 classes,and 3 phyla,among which,Acarina and Collembola were the dominant orders. With increasing altitude,the Margalef index,Shannon index,and Pielou index of the soil fauna all had a decreasing trend. As for the seasonal dynamics,the Margalef index of the soil fauna at the five altitudes was the highest in summer,slightly lower in autumn and winter,and the lowest in spring,the Shannon index increased slowly from spring to autumn and decreased then,with an overall trend as autumn summer spring winter,the Pielou index had the same variation trend as the Shannon index,while the Simpson index varied with a trend opposite to that of Shannon index.

关 键 词：群落结构 季节动态 海拔 土壤动物 多样性 

分 类 号：S154.5[农业科学—土壤学]