Immobilization and release risk of arsenic associated with partitioning and reactivity of iron oxide minerals in paddy soils
文献类型：期刊论文
| 作者 | Ouyang, Xiaoxue2,3; Ma, Jie2,3; Weng, Liping2,3; Chen, Yali2,3; Wei, Rongfei4; Zhao, Junying5; Ren, Zongling1; Peng, Hao2,3; Liao, Zhongbin2,3; Li, Yongtao1,3 |
| 刊名 | ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
 |
| 出版日期 | 2020-06-19 |
| 页码 | 14 |
| ISSN号 | 0944-1344 |
| 关键词 | Arsenic fraction Iron oxide minerals Paddy soil profile Sequential extraction Reaction kinetics |
| DOI | 10.1007/s11356-020-09480-y |
| 通讯作者 | Ma, Jie(majie@caas.cn) ; Weng, Liping(wengliping@caas.cn) |
| 英文摘要 | The consumption of agricultural products grown on paddy soils contaminated with toxic element has a detrimental effect on human health. However, the processes and mechanisms of iron (Fe) mineral-associated arsenic (As) availability and As reactivity in different paddy soil profiles are not well understood. In this study, the fractions, immobilization, and release risk of As in eleven soil profiles from the Changzhutan urban agglomeration in China were investigated; these studied soils were markedly contaminated with As. Sequential extraction experiments were used to analyze fractions of As and Fe oxide minerals, and kinetic experiments were used to characterize the reactivity of Fe oxide minerals. The results showed that concentrations of total As and As fractions had a downward trend with depth, but the average proportions of As fractions only showed relatively small changes, which implied that the decrease in the total As concentrations influenced the changes in fraction concentrations along the sampling depth. Moreover, we found that easily reducible Fe (Fe-ox1) mainly controlled the reductive dissolution of the Fe oxides, which suggest that the reductive dissolution process could potentially release As during the flooded period of rice production. In addition, a high proportion of As was specifically absorbed As (As-F2) (average 20.4%) in paddy soils, higher than that in other soils. The total organic carbon (TOC) content had a positive correlation with the amount of non-specifically bound As (As-F1) (R= 0.56), which means that TOC was one factor that affected the As extractability in the As-F1. Consequently, high inputs of organic fertilizers may elevate the release of As and accelerate the diffusion of As. |
| WOS关键词 | RED-RIVER FLOODPLAIN ; PTERIS-VITTATA L. ; SEQUENTIAL EXTRACTION ; ORGANIC-MATTER ; CONTAMINATED SOIL ; DISSOLUTION KINETICS ; METAL CONTAMINATION ; HUNAN PROVINCE ; ASCORBIC-ACID ; HETAO BASIN |
| 资助项目 | National Key Research and Development Program of China[2016YFD0800304] ; National Natural Science Foundation of China[41701262] ; National Natural Science Foundation of China[41701355] ; National Natural Science Foundation of China[41601227] ; National Natural Science Foundation of China[41771277] ; Central Public-interest Scientific Institution Basal Research Fund[Y2020PT03] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | SPRINGER HEIDELBERG |
| WOS记录号 | WOS:000541324800009 |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China ; Central Public-interest Scientific Institution Basal Research Fund |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/162324]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Ma, Jie; Weng, Liping |
| 作者单位 | 1.South China Agr Univ, Coll Nat Resources & Environm, Guangzhou 510642, Guangdong, Peoples R China 2.Minist Agr & Rural Affairs, Key Lab Environm Factors Control Agroprod Qual Sa, Tianjin 300191, Peoples R China 3.Minist Agr & Rural Affairs, Agroenvironm Protect Inst, Tianjin 300191, Peoples R China 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 5.Tianjin Univ Technol, Sch Environm Sci & Safety Engn, Tianjin 300384, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ouyang, Xiaoxue,Ma, Jie,Weng, Liping,et al. Immobilization and release risk of arsenic associated with partitioning and reactivity of iron oxide minerals in paddy soils[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2020:14. |
| APA | Ouyang, Xiaoxue.,Ma, Jie.,Weng, Liping.,Chen, Yali.,Wei, Rongfei.,...&Li, Yongtao.(2020).Immobilization and release risk of arsenic associated with partitioning and reactivity of iron oxide minerals in paddy soils.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,14. |
| MLA | Ouyang, Xiaoxue,et al."Immobilization and release risk of arsenic associated with partitioning and reactivity of iron oxide minerals in paddy soils".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2020):14. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。