Human-driven spatiotemporal distribution of phosphorus flux in the environment of a mega river basin
文献类型：期刊论文
| 作者 | Cui, Meng1,2; Guo, Qingjun2,3; Wei, Rongfei2; Tian, Liyan2 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2021-01-15 |
| 卷号 | 752页码:13 |
| 关键词 | Anthropogenic phosphorus Yangtze River Basin Agriculture sources Water quality Eutrophication |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2020.141781 |
| 通讯作者 | Guo, Qingjun(guoqj@igsnrr.ac.cn) |
| 英文摘要 | Large river basins transport considerable nutrients to the ocean every year. However, phosphorus (P) generated by human activities not only threatens aquatic ecosystem health in the river basin, but also has a negative effect on the estuary water environment. To better understand the environmental effects of anthropogenic P in a mega basin, we examined its inputs and distribution characteristics, and analyzed the factors driving it in the Yangtze River Basin (YRB) and sub-catchments. Anthropogenic P flux in the sub-catchments gradually increased from upper to lower reaches, and hotspots were primarily concentrated in traditional agricultural areas such as the Sichuan Basin and the Middle-Lower Yangtze plains. Agricultural sources were the main anthropogenic P inputs, of which fertilizer P was the leading contributor and driver of P changes, but livestock manure also accounted for a high proportion. Presently, anthropogenic P inputs in the YRB are considerably higher than in other parts of the world. Although long-distance transportation allows some P from the entire basin to be deposited in freshwater, a large amount of P still reaches the estuary and has a negative effect on water quality, outweighing the influence of local coastal inputs. To maintain the ecological health of the river basin and estuary, it will be necessary to further improve P utilization efficiency and encourage greater cooperation between different regions in the river basin. (C) 2020 Elsevier B.V. All rights reserved. |
| WOS关键词 | EAST CHINA SEA ; ANTHROPOGENIC PHOSPHORUS ; YANGTZE-RIVER ; NITROGEN ; INPUTS ; EXPORT ; EUTROPHICATION ; EMISSIONS ; ESTUARY ; FLOWS |
| 资助项目 | National Natural Science Foundation of China[41890822] ; National Natural Science Foundation of China[41890824] ; National Natural Science Foundation of China[41625006] ; National Natural Science Foundation of China[41561144005] ; National Natural Science Foundation of China[41761144066] ; Resource and Environment Data Cloud Platform, Chinese Academy of Sciences |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000588243900030 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; Resource and Environment Data Cloud Platform, Chinese Academy of Sciences |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/156403]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Guo, Qingjun |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Ctr Environm Remediat, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cui, Meng,Guo, Qingjun,Wei, Rongfei,et al. Human-driven spatiotemporal distribution of phosphorus flux in the environment of a mega river basin[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,752:13. |
| APA | Cui, Meng,Guo, Qingjun,Wei, Rongfei,&Tian, Liyan.(2021).Human-driven spatiotemporal distribution of phosphorus flux in the environment of a mega river basin.SCIENCE OF THE TOTAL ENVIRONMENT,752,13. |
| MLA | Cui, Meng,et al."Human-driven spatiotemporal distribution of phosphorus flux in the environment of a mega river basin".SCIENCE OF THE TOTAL ENVIRONMENT 752(2021):13. |
入库方式： OAI收割
来源：地理科学与资源研究所
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