甲胺磷农药污染对土壤动物影响的研究  

Simulating Toxicity Tests of Methamidophos Pesticide to Soil Animals.

作　　者：李忠武[1] 王振中[1] 邢协加[1] 张友梅[1] 

机构地区：[1]湖南师范大学资源与环境学系

出　　处：《环境科学》1997年第6期45-49,共5页Environmental Science

基　　金：国家自然科学基金;湖南省自然科学基金

摘　　要：应用甲胺磷农药对土壤动物进行污染模拟实验．结果表明，甲胺磷农药对土壤动物有明显影响，并随着甲胺磷溶液处理浓度的增加，土壤动物的种类和数量显著减少；多样性指数，高处理浓度（０．５４ｍｌ／Ｌ）时为３．７５９６，低处理浓度（０．０１ｍｌ／Ｌ）时为５．７９６２，对照组则为８．５７１４．大型土壤动物蚯蚓的染毒实验表明，甲胺磷对蚯蚓有明显的致死作用，其半致死浓度（ＬＣ５０），２４ｈ为１３．７ｍｌ／Ｌ，４８ｈ为５．４ｍｌ／Ｌ，７２ｈ为３．９ｍｌ／Ｌ，计算所得蚯蚓生活的安全浓度为０．２５１７ｍｌ／Ｌ．Results of simulating experiments on methamidophos pesticide to soil animals showed that the methamidophos pesticide has an obvious effect on soil animals,the species and the amount of soil animals decrease obviously with increasing of methamidophos pesticide treating concentration;the diversity indexs are 3.7596,5.7962 and 8 5714 for 0 54ml/L,0.01ml/L and control of methamidophos pesticide treating concentration respectively.Toxicity test of earthworm showed that the methamidophos pesticide influences obviously earthworm,their LC 50 are 13 7ml/L,5 4ml/L and 3.9ml/L for 24 hours,48 hours and 72 hours respectively.Safe concentration calculated of earthworm living is 0.2517ml/L.

关 键 词：农药残留 土壤动物 蚯蚓 甲胺磷 模拟实验 

分 类 号：X592.032.2[环境科学与工程—环境工程]