The fate of arsenic in contaminated paddy soil with gypsum and ferrihydrite amendments
文献类型：期刊论文
| 作者 | Chen, Xue-Ping; Zhou, Jingyong; Lei, Yanru; He, Chiquan; Liu, Xiaoyan; Chen, Zheng; Bao, Peng |
| 刊名 | INTERNATIONAL JOURNAL OF ENVIRONMENT AND POLLUTION
 |
| 出版日期 | 2015-01 |
| 卷号 | 56期号:1-4页码:48-62 |
| 关键词 | ferrihydrite gypsum arsenic sequential extraction soil remediation |
| 英文摘要 | Ferrihydrite and gypsum (CaSO4 center dot 2H(2)O) are two chemicals which were suggested to reduce the bioavailability of arsenic (As) in agricultural field. The efficiency of those chemicals added in the paddy field was investigated by pot culture in this study. The results showed As uptake by rice under ferrihydrite treatment was significantly lower than that in the control (36% in shoot), however, plants grown in gypsum show no significant difference in As content compared with those in the control. Sequential extraction showed that As was mainly adsorbed to amorphous and crystalline hydrous oxide. The addition of gypsum did not change the As fractionation in comparison with the control, which may be due to restrained sulphur (S) reduction by the high microbially reducible Fe(III) (150-250 mg kg(-1)), which precipitates with sulphide in preference to As. These results suggest that the chemical Fe oxides efficiently reduce As risk in the paddy. |
| 研究领域[WOS] | Environmental Sciences |
| WOS记录号 | WOS:000352842300004 |
| 公开日期 | 2016-03-08 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/32395]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Chen, Xue-Ping,Zhou, Jingyong,Lei, Yanru,et al. The fate of arsenic in contaminated paddy soil with gypsum and ferrihydrite amendments[J]. INTERNATIONAL JOURNAL OF ENVIRONMENT AND POLLUTION,2015,56(1-4):48-62. |
| APA | Chen, Xue-Ping.,Zhou, Jingyong.,Lei, Yanru.,He, Chiquan.,Liu, Xiaoyan.,...&Bao, Peng.(2015).The fate of arsenic in contaminated paddy soil with gypsum and ferrihydrite amendments.INTERNATIONAL JOURNAL OF ENVIRONMENT AND POLLUTION,56(1-4),48-62. |
| MLA | Chen, Xue-Ping,et al."The fate of arsenic in contaminated paddy soil with gypsum and ferrihydrite amendments".INTERNATIONAL JOURNAL OF ENVIRONMENT AND POLLUTION 56.1-4(2015):48-62. |
入库方式： OAI收割
来源：生态环境研究中心
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