除草剂灭草烟在土壤中的吸附、脱附  

Adsorption and desorption of herbicide imazapyr by soil.

作　　者：王琪全[1] 刘维屏[1] 

机构地区：[1]浙江大学化学系

出　　处：《中国环境科学》1998年第4期314-318,共5页China Environmental Science

基　　金：国家自然科学基金

摘　　要：对咪唑啉酮类除草剂灭草烟在８种土壤的吸附、脱附进行了研究，对振摇时间、温度、土壤ｐＨ值的影响作了探讨，并对吸附、脱附常数与土壤的理化性质的相关性进行了分析。结果表明，灭草烟在土壤中吸附常数和土壤〔Ｈ＋〕（ＯＭ％）呈正相关。The adsorption and desorption of imazapyr on eight soils of various physical and chemical properties were studied. The correlation of Freundlich adsorption and desorption constant, Kaf and Kdf, with physical and chemical properties of soils were also studied. The results show that Kaf increases with the increase of 〔H+〕O.M.% of soils;and the desorption rate increases with the decrease of O.M.% of soils.

关 键 词：除草剂 灭草烟 土壤 吸附 脱附 农药污染 

分 类 号：X592.02[环境科学与工程—环境工程] X833