| 甲胺磷和铜对黑土中乙草胺的蚯蚓生态解毒过程的影响 |
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| 引用本文： | 梁继东,周启星.甲胺磷和铜对黑土中乙草胺的蚯蚓生态解毒过程的影响[J].应用生态学报,2006,17(10):1958-1962. |
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| 作者姓名： | 梁继东 周启星 |
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| 作者单位： | 1.中国科学院沈阳应用生态研究所陆地生态过程重点实验室， 沈阳 110016;2.西安交通大学能源与动力工程学院, 西安 710049；;3.南开大学环境科学与工程学院， 天津 300071 |
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| 基金项目： | 国家自然科学基金;国家重点基础研究发展计划(973计划) |
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| 摘 要： | 采用微宇宙培养法，通过蚯蚓对比试验，研究了甲胺磷和Cu分别与乙草胺共存条件下黑土中乙草胺降解过程的动态变化，探讨利用蚯蚓强化乙草胺解毒过程的可行性.结果表明，无论是否加入蚯蚓，在乙草胺单一污染的土壤中乙草胺的降解符合一级反应动力学规律；蚯蚓活动促进了乙草胺的降解解毒过程；土壤中甲胺磷或Cu分别与乙草胺共存时，对乙草胺的降解有抑制效应；甲胺磷与乙草胺复合及Cu与较高浓度乙草胺复合时，改变了乙草胺随时间的降解变化规律; 而Cu与较低浓度乙草胺复合时，对其降解解毒过程无明显影响.
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| 关 键 词： | 水稻 CO2浓度增高 产量 产量构成因素 |
| 文章编号： | 1001-9332(2006)10-1958-05 |
| 收稿时间： | 2005-10-08 |
| 修稿时间： | 2006-08-01 |
Effects of methamidophos and copper on ecological detoxification of acetochlor by earthworm in phaeozem |
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| LIANG Jidong,ZHOU Qixing.Effects of methamidophos and copper on ecological detoxification of acetochlor by earthworm in phaeozem[J].Chinese Journal of Applied Ecology,2006,17(10):1958-1962. |
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| Authors: | LIANG Jidong ZHOU Qixing |
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| Institution: | 1.Key Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;2.College of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China;3.College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China |
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| Abstract: | By using microcosm culture method,this paper studied the dynamic changes of acetochlor degradation by earthworm in phaeozem with methamidophos or copper addition,aimed to approach the feasibility of using earthworm to intensify the detoxification of acetochlor.The results showed that the dynamics of acetochlor degradation accorded with the first-order reaction kinetics,whether earthworm existed or not.The activities of earthworm accelerated the detoxification of acetochlor,and the coexistence of methamidophos or copper with acetochlor evidently inhibited the degradation of acetochlor.The coexistence of methamidophos and acetochlor or of copper and higher concentration acetochlor altered the dynamics of acetochlor degradation,while the coexistence of copper and lower concentration acetochlor didn't have any obvious effect on the detoxification of acetochlor. |
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| Keywords: | Acetochlor Methamidophos Copper Combined pollution Earthworm Detoxification |
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