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.
出处
《应用生态学报》
CAS
CSCD
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
关键词
CD
群落结构
模拟实验
多样性指数
Cd
Community structure
Simulating test
Diversity index
