| Effect of charcoal amendment on adsorption, leaching and degradation of isoproturon in soils | |
| Si, Youbin1,2; Wang, Midao1; Tian, Chao1; Zhou, Jing2; Zhou, Dongmei2 | |
| 刊名 | JOURNAL OF CONTAMINANT HYDROLOGY
 |
| 2011-04-01 | |
| 卷号 | 123期号:1-2页码:75-81 |
| 关键词 | Isoproturon Adsorption Leaching Degradation Charcoal amendment Soils |
| ISSN号 | 0169-7722 |
| DOI | 10.1016/j.jconhyd.2010.12.008 |
| 通讯作者 | Si, Youbin(ybsi2002@yahoo.com.cn) |
| 英文摘要 | The effects of charcoal amendment on adsorption, leaching and degradation of the herbicide isoproturon in soils were studied under laboratory conditions. The adsorption data all fitted well with the Freundlich empirical equation. It was found that the adsorption of isoproturon in soils increased with the rate of charcoal amended (correlation coefficient r = 0.957**, P<0.01). The amount of isoproturon in leachate decreased with the increase of the amount of charcoal addition to soil column, while the retention of isoproturon in soils increased with an increase in the charcoal content of soil samples. Biodegradation was still the most significant mechanism for isoproturon dissipation from soil. Charcoal amendment greatly reduced the biodegradation of isoproturon in soils. The half-lives of isoproturon degradation (DT(50)) in soils greatly extended when the rate of added charcoal inceased from 0 to 50 g kg(-1) (for Paddy soil, DT(50) values increased from 54.6 to 71.4 days; for Alfisol, DT(50) from 16.0 to 136 days; and for Vertisol, DT(50) from 15.2 to 107 days). The degradation rate of isoproturon in soils was significantly negatively correlated with the amount of added charcoal. This research suggests that charcoal amendment may be an effective management practice for reducing pesticide leaching and enhancing its persistence in soils. (C) 2010 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | PHENYLUREA HERBICIDE ISOPROTURON ; BIOPURIFICATION SYSTEMS ; ETHAMETSULFURON-METHYL ; MICROBIAL-DEGRADATION ; ORGANIC AMENDMENT ; SORPTION ; PESTICIDES ; WATER ; TRANSPORT ; SURFACE |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Water Resources |
| WOS类目 | Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000289136200008 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2559002 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Si, Youbin |
| 作者单位 | 1.Anhui Agr Univ, Sch Resources & Environm, Hefei 230036, Peoples R China 2.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Si, Youbin,Wang, Midao,Tian, Chao,et al. Effect of charcoal amendment on adsorption, leaching and degradation of isoproturon in soils[J]. JOURNAL OF CONTAMINANT HYDROLOGY,2011,123(1-2):75-81. |
| APA | Si, Youbin,Wang, Midao,Tian, Chao,Zhou, Jing,&Zhou, Dongmei.(2011).Effect of charcoal amendment on adsorption, leaching and degradation of isoproturon in soils.JOURNAL OF CONTAMINANT HYDROLOGY,123(1-2),75-81. |
| MLA | Si, Youbin,et al."Effect of charcoal amendment on adsorption, leaching and degradation of isoproturon in soils".JOURNAL OF CONTAMINANT HYDROLOGY 123.1-2(2011):75-81. |
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