Oxalate and root exudates enhance the desorption of p,p'-DDT from soils
文献类型：期刊论文
| 作者 | Luo, Lei; Zhang, Shuzhen; Shan, Xiao-Quan; Zhu, Yong-Guan |
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2006 |
| 卷号 | 63期号:8页码:1273-1279 |
| 关键词 | DDT desorption oxalate root exudates chinese soils |
| 英文摘要 | The abiotic desorption of pp'-DDT from seven Chinese soils spiked with pp-DDT and the effects of oxalate at 0.001-0.1 M and the root exudates of maize, wheat, and ryegrass were evaluated using batch experiments. Soil organic carbon played a predominant role in the retention of DDT. Oxalate significantly increased the desorption of pp'-DDT, with the largest increments ranging from 11% to 54% for different soils. Oxalate addition also resulted in the increased release of dissolved organic carbon and inorganic ions from soils. Root exudates had similar effects to those of oxalate. Root exudates significantly increased DDT desorption from the soils, and the general trend was similar among the plant species studied for all the soils (p > 0.05). Low molecular weight dissolved organic carbon amendments caused partial dissolution of the soil structure, such as the organo-mineral linkages, resulting in the release of organic carbon and metal ions and thus the subsequent enhanced desorption of DDT from the soils. The enhancing effects of oxalate and root exudates on DDT desorption were influenced by the contents of soil organic carbon and dissolved organic carbon in soils. (c) 2005 Elsevier Ltd. All rights reserved. |
| WOS记录号 | WOS:000238002200005 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/22906]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Luo, Lei,Zhang, Shuzhen,Shan, Xiao-Quan,et al. Oxalate and root exudates enhance the desorption of p,p'-DDT from soils[J]. CHEMOSPHERE,2006,63(8):1273-1279. |
| APA | Luo, Lei,Zhang, Shuzhen,Shan, Xiao-Quan,&Zhu, Yong-Guan.(2006).Oxalate and root exudates enhance the desorption of p,p'-DDT from soils.CHEMOSPHERE,63(8),1273-1279. |
| MLA | Luo, Lei,et al."Oxalate and root exudates enhance the desorption of p,p'-DDT from soils".CHEMOSPHERE 63.8(2006):1273-1279. |
入库方式： OAI收割
来源：生态环境研究中心
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