Iron isotope fractionation of redox and geochemical cycling in the typical Gleysols in Mun River Basin, Northeast Thailand
文献类型：期刊论文
| 作者 | Zhang, Qian; Han, Guilin2,4; Zeng, Jie2; Wang, Lingqing; Zhu, Guangyou3; Liu, Man2; Liang, Bin2; Qu, Rui2; Li, Xiaoqiang2; Zhang, Shitong2 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2023-12-15 |
| 卷号 | 904页码:166664 |
| ISSN号 | 0048-9697 |
| 关键词 | Fe isotope fractionation Soil profile Redox Geochemical cycling Thailand |
| DOI | 10.1016/j.scitotenv.2023.166664 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Iron (Fe) isotope is a potential tool for tracking redox process and geochemical cycling in terrestrial environment. In this study, Fe concentration and its isotopic composition (& delta;56Fe) in two typical Gleysol profiles (M1 and M2) were investigated to distinguish the processes which influence the variation of Fe isotopic composition during redox regimes in the Mun River Basin (MRB). Under oxidizing condition, Fe(II) was oxidized and re-precipitated to form Fe(III) (hydr)oxides zone (Fe nodule-containing zone) in two Gleysol profiles, leading to extremely light Fe isotopes in these zones. The results revealed that the lowest & delta;56Fe value in Fe(III) (hydr)oxides zone was derived from the migration of light Fe isotopes in upper zone, and Fe(II) was retained and oxidized to Fe(III) (hydr)oxides. Proton-promoted dissolution and leaching were two critical factors leading to a decrease in Fe concentration, which were accompanied by the accumulation of heavy Fe isotopes in the upper zone of M1 profile. In M2 profile, light Fe induced by soil organic matter was accumulated in the topsoil with abundant organic matter. These findings provide comprehensive information of Fe isotopic fractionation and Fe cycling in soil profiles, which would contribute to the understanding of biogeochemical elemental cycling in terrestrial ecosystems. |
| 学科主题 | Environmental Sciences & Ecology |
| WOS关键词 | FE ; DISSOLUTION ; PEDOGENESIS ; FE(III) ; SOILS |
| WOS研究方向 | Environmental Sciences & Ecology |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:001071257300001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/197869]  |
| 专题 | 管理部门_平台基建处 |
| 作者单位 | 1.China Univ Geosci, Inst Earth Sci, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 3.China Univ Geosci Beijing, Inst Earth Sci, Beijing 100083, Peoples R China 4.PetroChina, Res Inst Petr Explorat & Dev, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Qian,Han, Guilin,Zeng, Jie,et al. Iron isotope fractionation of redox and geochemical cycling in the typical Gleysols in Mun River Basin, Northeast Thailand[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2023,904:166664. |
| APA | Zhang, Qian.,Han, Guilin.,Zeng, Jie.,Wang, Lingqing.,Zhu, Guangyou.,...&Zhang, Shitong.(2023).Iron isotope fractionation of redox and geochemical cycling in the typical Gleysols in Mun River Basin, Northeast Thailand.SCIENCE OF THE TOTAL ENVIRONMENT,904,166664. |
| MLA | Zhang, Qian,et al."Iron isotope fractionation of redox and geochemical cycling in the typical Gleysols in Mun River Basin, Northeast Thailand".SCIENCE OF THE TOTAL ENVIRONMENT 904(2023):166664. |
入库方式： OAI收割
来源：地理科学与资源研究所
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