乙草胺对农田土壤动物群落结构的影响  

Effects of Acetochlor on Community Structure of Soil Animals in Farmland Soil

作　　者：李涛[1] 陈雯[1] 章芸[1] 张加勇[1] 郑荣泉[1] 黄海松[2] 

机构地区：[1]浙江师范大学生态研究所,浙江金华321004 [2]浙江丽水职业技术学院,浙江丽水323000

出　　处：《安徽农业科学》2009年第20期9502-9505,共4页Journal of Anhui Agricultural Sciences

基　　金：浙江省自然基金(Y506255)

摘　　要：[目的]研究除草剂乙草胺对农田土壤动物群落结构的影响。[方法]采用实验室模拟方法,研究乙草胺对农田土壤动物群落结构的影响以及大型土壤动物的毒性效应。[结果]随着乙草胺溶液浓度的增加,Shannon-Wiener多样性指数(H′)表现出一定的递减趋势。染毒试验中,土壤动物类群数的减少主要由于常见类群和稀有类群的减少,土壤动物的数量变化则主要由于优势类群原生动物门、线虫动物和蜱螨类的数量消长。大型土壤动物蚯蚓的染毒试验表明,乙草胺有明显的致死作用,蚯蚓的生活安全浓度为0.0996 ml/L。[结论]该研究为农业生态环境保护提供科学依据。[ Objective ] The aim of the research was to discuss the effect of acetochlor on community structure of soil animals in farmland soil. [ Method ] Using the laboratory simulation method, some research on the effects of acetoehlor on community structure of soil animals and toxic effects of acetochlor on soil macroanimals were made. [ Result ] With the increasing of aeetochlor concentration, the Shannon-Wiener index（H＇） decreased. In the polluted experiment, the species of soil animals were decreased with decreasing common population and rare population, while the amount change of soil animal was associated with the amount change of the dominant populations of Protozoa, Nematode and Oribatida. Toxicity test of earthworm showed that aeetochlor herbicide had influence obviously on earthworm. Safe concentration of earthworm was 0.099 6 ml/L. [ Conclusion ] This research provided scientific basis for the agroecological environment protection.

关 键 词：土壤动物 群落结构 乙草胺 模拟试验 

分 类 号：S154.5[农业科学—土壤学]