Global scale identification of catchments phosphorus source shifts with urbanization: A phosphate oxygen isotope and Bayesian mixing model approach
文献类型：期刊论文
| 作者 | Wang, Ziteng1; Sun, Fuhong1; Guo, Qingjun2,3; Gooddy, Daren C.4; Wu, Fengchang1 |
| 刊名 | WATER RESEARCH
 |
| 出版日期 | 2024-02-15 |
| 卷号 | 250页码:9 |
| ISSN号 | 0043-1354 |
| 关键词 | Phosphate oxygen isotopes P source shifts Urbanization stage Driving force Catchment P management |
| DOI | 10.1016/j.watres.2023.121026 |
| 通讯作者 | Sun, Fuhong(sunfhiae@126.com) ; Wu, Fengchang(wufengchang@vip.skleg.cn) |
| 英文摘要 | Different scenarios of urban expansion can influence the dynamic characteristics of catchments in terms of phosphorus (P). It is important to identify the changes in P sources that occur during the process of urbanization to develop targeted policies for managing P in catchments. However, there is a knowledge gap in quantifying the variations of potential P sources associated with urbanization. By combining phosphate oxygen isotopes from global catchments with a Bayesian model and the urbanization process, we demonstrate that the characteristics of potential P sources (such as fertilizers, urban wastewater, faeces, and bedrock) change as urban areas expand. Our results indicate that using phosphate oxygen isotopes in conjunction with a Bayesian model provides direct evidence of the proportions of potential P sources. We classify catchment P loadings into three stages based on shifts in potential P sources during urban expansion. During the initial stage of urbanization (urban areas < 1.5 %), urban domestic and industrial wastewater are the main contributors to P loadings in catchments. In the midterm acceleration stage (1.5 % <= urban areas < 3.5 %), efforts to improve wastewater treatment significantly reduce wastewater P input, but the increase in fertilizer P input offsets this reduction in sewage-derived P. In the high-level urbanization stage (urban areas >= 3.5 %), the proportions of the four potential P sources tend to stabilize. Remote areas bear the burden of excessive P loadings to meet the growing food demand and improved diets resulting from the increasing urban population. Our findings support the development of strategies for water quality management that better consider the driving forces of urbanization on catchment P loadings. |
| WOS关键词 | INORGANIC-PHOSPHATE ; WATER ; NITROGEN ; RIVER ; CHINA ; EUTROPHICATION ; DELTA-O-18 ; TRACER ; SOIL |
| 资助项目 | National Key Research and Development Program[2021YFC3201001] ; National Natural Science Foundation of China[42230713] ; Joint Research Project for the Yangtze River Conservation (Phase II) , China[2022-LHYJ-02-0101] |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology ; Water Resources |
| 语种 | 英语 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| WOS记录号 | WOS:001144925900001 |
| 资助机构 | National Key Research and Development Program ; National Natural Science Foundation of China ; Joint Research Project for the Yangtze River Conservation (Phase II) , China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/202343]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Sun, Fuhong; Wu, Fengchang |
| 作者单位 | 1.Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Resource Use & Environm Remediat, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.British Geol Survey, Maclean Bldg, Wallingford OX10 8BB, Oxon, England |
| 推荐引用方式 GB/T 7714 | Wang, Ziteng,Sun, Fuhong,Guo, Qingjun,et al. Global scale identification of catchments phosphorus source shifts with urbanization: A phosphate oxygen isotope and Bayesian mixing model approach[J]. WATER RESEARCH,2024,250:9. |
| APA | Wang, Ziteng,Sun, Fuhong,Guo, Qingjun,Gooddy, Daren C.,&Wu, Fengchang.(2024).Global scale identification of catchments phosphorus source shifts with urbanization: A phosphate oxygen isotope and Bayesian mixing model approach.WATER RESEARCH,250,9. |
| MLA | Wang, Ziteng,et al."Global scale identification of catchments phosphorus source shifts with urbanization: A phosphate oxygen isotope and Bayesian mixing model approach".WATER RESEARCH 250(2024):9. |
入库方式： OAI收割
来源：地理科学与资源研究所
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