| 除草剂莠去津(atrazine)在土壤-水环境中的吸附及其机理 |
| 摘要点击 1225 全文点击 2241 投稿时间：1999-09-07 |
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| 中文关键词 莠去津 腐殖酸 土壤 粘土矿 吸附 |
| 英文关键词 atrazine soil humic acid adsorption mechanism |
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| 中文摘要 |
| 为指导农药的使用 ,避免对后茬作物的影响 ,优化农药的施用量、减少环境污染 ,研究了土壤、腐殖酸、粘土矿对莠去津的吸附及其机理 .结果表明 :吸附强弱与土壤理化特性密切相关 ,Feundlich常数 Kaf与 OM%有较好的相关性 ( r=0 .975) .腐殖酸对其的吸附起决定作用而粘土矿对其吸附作用并不强 .莠去津在土壤中的吸附可能有氢键、范德华力等作用 . |
| 英文摘要 |
| The adsorption of atrazine on four kinds of soils was measured using batch equilibration technique.It was found that adsorption isotherms could fit Freundlich equation well.According to the analysis of the correlation between Kaf and the physical and chemical properties of the soils,organic matter content of soils was the dependent factor in the adsorption.Hydrogen bonding was found to be the common mechanism in the adsorption of atrazine. |
