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| 腐植酸对水溶液中丁草胺光化学降解的影响 | |
| 引用本文： | 谭文捷,王金生,丁爱中,李发生.腐植酸对水溶液中丁草胺光化学降解的影响[J].农业环境科学学报,2009,28(1). |
| 作者姓名： | 谭文捷 王金生 丁爱中 李发生 |
| 作者单位： | 1. 中国环境科学研究院土壤污染与控制研究室,北京100012;北京师范大学水科学研究院;教育部水沙科学重点实验室,北京,100875 2. 北京师范大学水科学研究院,教育部水沙科学重点实验室,北京,100875 3. 中国环境科学研究院土壤污染与控制研究室,北京,100012 |
| 摘 要： | 采用采用紫外光照射的方法研究了腐植酸对丁草胺光降特性的影响.结果表明,潮土腐槙酸对丁草胺的光降解具明显的抑制.潮土腐植酸浓度较低(<10mg·L-1)时,随腐植酸浓度的增加对丁草胺光降解的抑制作用越强,丁草胺光降解速率越低:当潮腐植酸的浓度≥10mg·L-1时,腐植变化对丁草胺光降解的抑制作用影响不大,20mg·L-1腐植酸与10mg·L-1腐植酸对丁草胺光降解的影响相近.不同腐植酸对丁草胺光降解的抑制作用不同,商品腐植酸对丁草胺降解抑制作用较强,潮土腐植酸和黑土腐植酸对丁草胺光降解的抑制作用则相对较弱.这种现象可能是由腐植酸的纯度和腐植酸本身结构我的差异造成的. |
| 关 键 词： | 丁草胺 腐植酸 光降解 |
Effects of Humic Acid Substances on Photodegradation of Butachlor in Waters |
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| TAN Wen-jie,WANG Jin-sheng,DING Ai-zhong,LI Fa-sheng.Effects of Humic Acid Substances on Photodegradation of Butachlor in Waters[J].Journal of Agro-Environment Science( J. Agro-Environ. Sci.),2009,28(1). | |
| Authors: | TAN Wen-jie WANG Jin-sheng DING Ai-zhong LI Fa-sheng |
| Institution: | 1. Department of Soil Pollution Control;Chinese Research Academy of Environmental Sciences;Beijing 100012;China;2. Key Laboratory of Water and Sediment Sciences;Ministry of Education College of Water Sciences;Beijing Normal University;Beijing 100875;China |
| Abstract: | The herbicide butachlor, N- (butoxymethyl)-2-chloro-2, 6-diethyl acetanilide, is one of the three main herbicides used to control weeds in China. Because of its toxicity to ecological systems and persistence in environments, the fate of butachlor in environments is of great concern to many environmental scientists. In this work, effects of humic acid substances (HAS) on photodegradation of butachlor in waters were investigated through laboratory experiments under the conditions of UV irradiation. Three kind... |
| Keywords: | butachlor humic acid photodegradation |
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