农药涕灭威在土壤中的移动性及地下水影响研究  

Transformation of Aldicarb in Soil and Its Impact on Groundwater

作　　者：金朝晖[1] 曹骥赟[1] 李铁龙[1] 周欣[1] 戴树桂[1] 王玲艳 

机构地区：[1]南开大学环境科学与工程学院,天津300071 [2]河北省卢龙县刘田庄镇农业站,河北066400

出　　处：《农业环境科学学报》2003年第4期480-483,共4页Journal of Agro-Environment Science

基　　金：国家自然科学基金资助项目(29837170);教育部南开大学;天津大学联合研究项目

摘　　要：利用土壤薄层层析法研究了土壤深度,土壤pH值,复合污染物等因素对涕灭威在土壤中的移动性影响。涕灭威移动性随着土层加深而增强,移动性等级属于第四级———移动性强。中性土壤环境中,涕灭威移动性最弱,非中性环境有利于涕灭威移动。阴离子表面活性剂(SDBS)能促进涕灭威迁移,而非离子表面活性剂(Tween60)对移动性影响不大。无机氮肥的有效成分氨氮,能阻碍涕灭威在土壤中的移动。In this paper, the factors affecting transformation of aldicarb in soil were studied by soil thin-layer chromatography, including depth of soil, pH value of soil, compound pollutants. We found that transformation of aldicarb varied with depth of soil and the transferability gradation was Ⅳgrade. Compared to non-neutral soil environment, in neutral soil environment transferability of aldicarb was the weakest. Anionic surfactant solution could promote aldicarb to transfer, while Tween60 had little effect on the transformation of aldicarb. Ammonia nitrogen could prevent aldicarb from transformation in the soil.

关 键 词：农药 涕灭威 土壤 移动性 地下水 影响因素 薄层层析法 深度 pH值 复合污染物 

分 类 号：X592[环境科学与工程—环境工程] X53