Increased dissolved methane production driven by phosphorus enrichment in rivers draining from varied climate zones to eastern China's coastal waters
文献类型：期刊论文
| 作者 | Zhang, Peipei5,6; Wang, Jianing4; Yu, Qibiao3; Li, Yanqiang2; Yan, Weijin1; Wang, Dongsheng5,6 |
| 刊名 | WATER RESEARCH
 |
| 出版日期 | 2026-07-01 |
| 卷号 | 299页码:125880 |
| 关键词 | Methane Phosphorus Dissolved organic phosphorus turnover FT-ICR MS Streams and rivers |
| ISSN号 | 0043-1354 |
| DOI | 10.1016/j.watres.2026.125880 |
| 产权排序 | 6 |
| 文献子类 | Article |
| 英文摘要 | New pathways for oxic methane (CH4) production necessitate re-evaluating the impact of productivity (i.e., eutrophication) on CH4 emissions. Phosphorus (P) is a key limiting factor in aquatic ecosystems; thus, increasing riverine P will promote fluvial productivity. However, clarifying the response of riverine CH4 production and emissions to P enrichment remains unclear. Here, field observations, in situ and laboratory incubations were conducted in 29 Chinese streams and rivers across varied climate zones between 2019 and 2024. Our results showed that wide-ranging net CH4 production (0.28-57.4 mu g C L-1) and diffusive emission rate (0.41-287 mg C m-2 d-1) correlated positively with P contents. In particular, both dissolved inorganic phosphorus (DIP) and dissolved organic phosphorus (DOP) stimulate riverine primary production and CH4 production in oxic water columns. Mass spectrometry analysis exhibited microbial DOP turnover to DIP involved molecular demethylation, and these demethylated homologues were strongly associated with net CH4 production. Our study suggested global riverine CH4 diffusive emissions will increase by 116% by 2100, driven by rising P loads and climate change under the RCP8.5 scenario analysis. These highlight significant uncertainties of fluvial CH4 emissions with increasing P loads under intensified human activities and climate change. |
| URL标识 | 查看原文 |
| WOS关键词 | ORGANIC-MATTER ; PRECIPITATION ; DEGRADATION ; TEMPERATURE ; FLUXES ; SEA |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:001745632200001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/221550]  |
| 专题 | 陆地表层格局与模拟院重点实验室_外文论文 |
| 通讯作者 | Yan, Weijin; Wang, Dongsheng |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Shandong Agr Univ, Coll Resources & Environm, Tai An 271018, Shandong, Peoples R China; 3.Suzhou Univ, Sch Environm & Surveying Engn, Suzhou 234000, Anhui, Peoples R China; 4.Chinese Acad Environm Planning, Inst Environm Investment & Ind, Beijing 100043, Peoples R China; 5.Zhejiang Univ, Sch Environm & Resources, Hangzhou 310058, Peoples R China; 6.Zhejiang Univ, Innovat Ctr Yangtze River Delta, Future Environm Lab, Jiaxing 314102, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Zhang, Peipei,Wang, Jianing,Yu, Qibiao,et al. Increased dissolved methane production driven by phosphorus enrichment in rivers draining from varied climate zones to eastern China's coastal waters[J]. WATER RESEARCH,2026,299:125880. |
| APA | Zhang, Peipei,Wang, Jianing,Yu, Qibiao,Li, Yanqiang,Yan, Weijin,&Wang, Dongsheng.(2026).Increased dissolved methane production driven by phosphorus enrichment in rivers draining from varied climate zones to eastern China's coastal waters.WATER RESEARCH,299,125880. |
| MLA | Zhang, Peipei,et al."Increased dissolved methane production driven by phosphorus enrichment in rivers draining from varied climate zones to eastern China's coastal waters".WATER RESEARCH 299(2026):125880. |
入库方式： OAI收割
来源：地理科学与资源研究所
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