| 阿维菌素在不同类型土壤中的吸附研究 |
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| 引用本文： | 张卫,林匡飞,蔡兰坤,韩小波,李海芳.阿维菌素在不同类型土壤中的吸附研究[J].生态环境,2006,15(1):37-39. |
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| 作者姓名： | 张卫 林匡飞 蔡兰坤 韩小波 李海芳 |
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| 作者单位： | 华东理工大学资源与环境工程学院,上海,200237 |
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| 基金项目： | 国家科技部科技项目(2005BA908B16)，上海市科委世博科技专项重大攻关项目(05dz05816) |
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| 摘 要： | 采用Freundlich吸附等温方程研究了阿维菌素在不同类型土壤中的吸附。结果表明:阿维菌素的吸附等温线均为直线,说明吸附可能与其在土壤有机质中的分配作用有关;土壤有机质含量是影响阿维菌素土壤吸附的最重要因子,吸附系数与有机质含量呈正相关;阿维菌素有机质吸附常数平均值为2 369.185,吸附自由能为17.25~20.59 kJ.mol-1;降低水土比可以增加阿维菌素在腐殖酸和土壤中的吸附。
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| 关 键 词： | 阿维菌素 土壤 吸附 水土比 |
| 文章编号： | 1672-2175（2006）01-0037-03 |
| 收稿时间： | 2005-10-07 |
| 修稿时间： | 2005年10月7日 |
Study on the adsorption of abamectin in soils |
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| ZHANG Wei,LIN Kuangfei,CAI Lankun,HAN Xiaobo,LI Haifang.Study on the adsorption of abamectin in soils[J].Ecology and Environmnet,2006,15(1):37-39. |
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| Authors: | ZHANG Wei LIN Kuangfei CAI Lankun HAN Xiaobo LI Haifang |
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| Abstract: | The adsorption of abamectin in soils was studied with Freundlich equation.The results showed that the adsorption iso-therms for abamectin were all beeline in four kinds of soils,maybe which indicated that the adsorption was related to the distribu-tion action of abamectin in soil organic matter;organic matter content of soil was the most important factor affecting abamectin adsorption in soil,and adsorption coefficient positively correlated with organic matter content;Adsorption constant of organic matter of abamectin averaged 2 369.185,and the free energies of abamectin adsorption were 17.25~20.59 kJ.mol-1;And higher adsorption in humic acid and soil with the decrease of solution/soil ratio had been found. |
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| Keywords: | abamectin soil adsorption solution/soil ratio |
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