Cd对土壤动物群落结构的影响  

Effect of Cadmium on soil animal community structure

作　　者：李忠武[1] 王振中[1] 张友梅[1] 邢协加[1] 

机构地区：[1]湖南师范大学国土学院

出　　处：《应用生态学报》2000年第6期931-934,共4页Chinese Journal of Applied Ecology

基　　金：国家自然科学基金(39230070);湖南省自然科学基金资助项目

摘　　要：Cd污染对土壤动物影响的模拟实验结果表明 ,土壤动物群落结构的变化与Cd处理浓度的大小密切相关 .在高浓度 (99 48mg·kg-1)组时 ,土壤动物种类、个体数量、多样性指数、均匀性指数及动物密度均较低 ;而随浓度降低 ,各项指标逐渐增加 ,至低浓度 (2 72mg·kg-1)组时已基本和对照组一致 .种类与个体数量和Cd处理浓度的自然对数呈明显负相关 .A indoor simulating test showed that there existed a close relationship between the community structure of soil animal and the concentration of soil Cd. When the concentration of soil Cd was high (99\^48mg·kg -1 ),the species,quantity,diversity index,homogeneous index,and abundance of soil animal were low.With the concentration going down,all indexes above increased gradually.When the concentration of soil Cd was 2\^27mg·kg -1 ,all the indexes were the same as control.The species and individuals of soil animal were negatively related with the natural logarithm of Cd concentration in soil.

关 键 词：CD 群落结构 模拟实验 多样性指数 

分 类 号：S154[农业科学—土壤学]