Coupling metabolisms of arsenic and iron with humic substances through microorganisms in paddy soil
文献类型：期刊论文
| 作者 | Yi, Xing-Yun; Yang, Yu-Ping ; Yuan, Hai-Yan; Chen, Zheng2; Duan, Gui-Lan; Zhu, Yong-Guan
|
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2019-07-05 |
| 卷号 | 373页码:591-599 |
| 关键词 | Arsenic Humic acid Fulvic acid Bathyarchaeota |
| ISSN号 | 0304-3894 |
| 英文摘要 | Humic acid (HA) and fulvic acid (FA) are dominating humic substances (HS) in soil. In this study, the effects of HA and FA addition (0.2%-1.5%) on arsenic (As) mobility and microbial community composition in paddy soil were investigated. FA significantly increased the concentrations of As (12-fold), iron (Fe; 20-fold), manganese (Mn; 3-fold) and acetic acid (3-fold) in soil porewater, and also caused significant enrichment of Desulfitobacterium (41-fold). Furthermore, the FA addition significantly increased the relative abundance of Bathyarchaeota (4-fold), a microorganism that is suggested to be important for FA degradation. In contrast, HA slightly increased As (1.2-fold) in porewater, had little effect on Fe, Mn and acetic acid, and 1.5% HA addition significantly decreased As in porewater at day 14 (45%). Both HA and FA addition promoted As methylation. HA increased dimethylarsenate concentration and FA increased monomethylarsenate concentration in porewater. These results highlight the contrasting effects of different (HA vs. FA) organic substances on As fate in paddy soil and advance our understanding of the associations among As, Fe and organic substances through microorganisms in paddy soil. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/42393]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Xian Jiaotong Liverpool Univ, Dept Hlth & Environm Sci, Suzhou 215123, Peoples R China 4.Chinese Acad Sci, Inst Urban Environm, Key Lab Urban Environm & Hlth, Xiamen 361021, Fujian, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yi, Xing-Yun,Yang, Yu-Ping,Yuan, Hai-Yan,et al. Coupling metabolisms of arsenic and iron with humic substances through microorganisms in paddy soil[J]. JOURNAL OF HAZARDOUS MATERIALS,2019,373:591-599. |
| APA | Yi, Xing-Yun,Yang, Yu-Ping,Yuan, Hai-Yan,Chen, Zheng,Duan, Gui-Lan,&Zhu, Yong-Guan.(2019).Coupling metabolisms of arsenic and iron with humic substances through microorganisms in paddy soil.JOURNAL OF HAZARDOUS MATERIALS,373,591-599. |
| MLA | Yi, Xing-Yun,et al."Coupling metabolisms of arsenic and iron with humic substances through microorganisms in paddy soil".JOURNAL OF HAZARDOUS MATERIALS 373(2019):591-599. |
入库方式： OAI收割
来源：生态环境研究中心
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