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| 竹林土壤中甲基对硫磷降解菌的降解效果及其与土壤物理特性的关系 | |
| 引用本文： | 赵倩,陈双林,叶雪均,郭子武.竹林土壤中甲基对硫磷降解菌的降解效果及其与土壤物理特性的关系[J].环境工程学报,2009,3(7):1325-1328. |
| 作者姓名： | 赵倩 陈双林 叶雪均 郭子武 |
| 作者单位： | 1. 中国林业科学研究院亚热带林业研究所,富阳,311400;江西理工大学资源与环境工程学院,赣州,341000 2. 中国林业科学研究院亚热带林业研究所,富阳,311400 3. 江西理工大学资源与环境工程学院,赣州,341000 |
| 基金项目： | 国家林业局“948”引进项目（2004415）；杭州市科技攻关专项（2004415） |
| 摘 要： | 采用实验室控制试验研究了甲基对硫磷降解菌在竹林土壤生态系统中的降解效果及其与土壤物理特性的关系。试验结果表明，邻单胞菌（DLL-1）具有高效性，甲基对硫磷初始浓度为15 mg/kg干土，第5 d竹林土壤上、中和下层的降解率分别为88.6%、85.9%和79.2%，相应的半衰期为2.5、2.84与3.79 d。甲基对硫磷在土壤中的不同粒径范围吸附情况是不同的，从而影响DLL-1菌的降解效果，表现为土壤中粘粒含量与降解率呈显著正相关。孔隙度也是影响降解效果的一个因素，上中下3层的降解率随着孔隙度的减小而降低。 |
| 关 键 词： | 竹林土壤 甲基对硫磷 生物降解 邻单胞菌（DLL-1） |
| 收稿时间： | 9/8/2008 12:00:00 AM |
Degradation effectiveness of parathion-methyl degrading bacteria in bamboo soil and relationships with its physical characteristics |
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| Zhao Qian,Chen Shuanglin,Ye Xuejun and Guo Ziwu.Degradation effectiveness of parathion-methyl degrading bacteria in bamboo soil and relationships with its physical characteristics[J].Techniques and Equipment for Environmental Pollution Control,2009,3(7):1325-1328. | |
| Authors: | Zhao Qian Chen Shuanglin Ye Xuejun and Guo Ziwu |
| Institution: | 1.Research Institute of Subtropical Forestry;Chinese Academy of Forestry;Fuyang 311400;China;2.Faculty of Resource and Environmental Engineering;Jiangxi University of Science and Technology;Ganzhou 341000;China |
| Abstract: | Biodegradation of parathion-methyl with DLL-1(Pseudomonas sp.) in soil of a bamboo forest and the relationship with physical properties of the soil were investigated under the laboratory conditions.DLL-1 was highly effective in degrading parathion-methyl,and the degradation rate of parathion-methyl after a 5-day treatment was up to 88.6%,85.9% and 79.2%,respectively.Correspondingly,the half-life of the pesticide was 2.5,2.84 and 3.79 days.The adsorption of parathion-methyl on the soil was related to soil pa... |
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