Isotope evidence for temporal and spatial variations of anthropogenic sulfate input in the Yihe River during the last decade
文献类型：期刊论文
| 作者 | Duan, Hui-zhen3; Zhang, Dong3; Zhao, Zhi-qi1; Jiang, Hao2; Zhang, Cong3; Huang, Xing-yu3; Ma, Bing-juan; Guo, Qing-jun4 |
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2022-11-15 |
| 卷号 | 313页码:12 |
| 关键词 | Anthropogenic sulfate input Sulfur and oxygen isotopes Acid mine drainage (AMD) Bayesian isotope mixing model Yihe river |
| ISSN号 | 0269-7491 |
| DOI | 10.1016/j.envpol.2022.120063 |
| 通讯作者 | Zhang, Dong(zhangdong@hpu.edu.cn) |
| 英文摘要 | Pyrite oxidation and sedimentary sulfate dissolution are the primary components of riverine sulfate (SO42-) and are predominant in global SO42- flux into the ocean. However, the proportions of anthropogenic SO42- inputs have been unclear, and their tempo-spatial variations due to human activities have been unknown. Thus, field work was conducted in a spatially heterogeneous human-affected area of the Yihe River Basin (YRB) during a wet year (2010) and drought years (2017/2018). Dual sulfate isotopes (delta S-34-SO42- and delta O-18-SO42-) and Bayesian isotope mixing models were used to calculate the variable anthropogenic SO42- inputs and elucidate their temporal impacts on riverine SO42- flux. The results of the mixing models indicated acid mine drainage (AMD) contributions increased from 56.1% to 83.1% of upstream sulfate and slightly decreased from 46.3% to 44.0% of midstream sulfate in 2010 and 2017/2018, respectively, in the Yihe River Basin. The higher upstream contribution was due to extensive metal-sulfide-bearing mine drainage. Sewage-derived SO42- and fertilizer-derived SO42- inputs in the lower reaches had dramatically altered SO42- concentrations and delta S-34-SO42- and delta O-18-SO42- values. Due to climate change, the water flow discharge decreased by about 70% between 2010 and 2017/2018, but the riverine sulfate flux was reduced by only about 58%. The non-proportional increases in anthropogenic sulfate inputs led to decreases in the flow-weighted average values of delta S-34-SO42- and delta O-18-SO42- from 10.3 parts per thousand to 9.9 parts per thousand and from 6.1 parts per thousand to 4.4 parts per thousand, respectively. These outcomes confirm that anthropogenic SO42- inputs from acid mine drainage (AMD) have increased, but sewage effluents SO42- inputs have decreased. |
| WOS关键词 | SULFUR ISOTOPES ; DISSOLVED SULFATE ; PYRITE OXIDATION ; MARINE SULFATE ; OXYGEN ; DELTA-O-18 ; DELTA-S-34 ; BACTERIAL ; MODEL ; CO2 |
| 资助项目 | National Natural Science Foundation of China[42073009] ; National Natural Science Foundation of China[41573095] ; National Natural Science Foundation of China[42003005] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000862126600005 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/185307]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zhang, Dong |
| 作者单位 | 1.Changan Univ, Sch Earth Sci & Resources, Xian 710054, Peoples R China 2.Chinese Acad Sci, Key Lab Aquat Bot & Watershed Ecol, Wuhan Bot Garden, Wuhan 430074, Peoples R China 3.Henan Polytech Univ, Sch Resource & Environm, Jiaozuo 454000, Peoples R China 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Ctr Environm Remediat, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Duan, Hui-zhen,Zhang, Dong,Zhao, Zhi-qi,et al. Isotope evidence for temporal and spatial variations of anthropogenic sulfate input in the Yihe River during the last decade[J]. ENVIRONMENTAL POLLUTION,2022,313:12. |
| APA | Duan, Hui-zhen.,Zhang, Dong.,Zhao, Zhi-qi.,Jiang, Hao.,Zhang, Cong.,...&Guo, Qing-jun.(2022).Isotope evidence for temporal and spatial variations of anthropogenic sulfate input in the Yihe River during the last decade.ENVIRONMENTAL POLLUTION,313,12. |
| MLA | Duan, Hui-zhen,et al."Isotope evidence for temporal and spatial variations of anthropogenic sulfate input in the Yihe River during the last decade".ENVIRONMENTAL POLLUTION 313(2022):12. |
入库方式： OAI收割
来源：地理科学与资源研究所
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