Slight flow volume rises increase nitrogen loading to nitrogen-rich river, while dramatic flow volume rises promote nitrogen consumption
文献类型：期刊论文
| 作者 | Lue, Jiali1,2,3,5; Wang, Shiqin1,4; Liu, Binbin1,4; Zheng, Wenbo1; Tan, Kangda1; Song, Xianfang2,3,5 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2022-10-20 |
| 卷号 | 844页码:11 |
| 关键词 | Nitrogen exchange flux Nitrogen transport Resuspension Functional gene composition Water diversion |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2022.157013 |
| 通讯作者 | Wang, Shiqin(sqwang@sjziam.ac.cn) |
| 英文摘要 | Concentrated rainfall and water transfer projects result in slight and dramatic increases in flow volume over short periods of time, causing nitrogen recontamination in the water-receiving areas of nitrogen-rich rivers. This study coupled hydrodynamic and biochemical reaction models to construct a model for quantifying diffusive transport and transformation fluxes of nitrogen across the water-sediment interface and analysed possible changes in the relative abundance of microbial functional genes using high-throughput sequencing techniques. In this study, the processes of ammonium (NH4+-N) and nitrate (NO3--N) nitrogen release and sedimentation with resuspended particles, as well as mineralisation, nitrification, and denitrification processes were investigated at the water-sediment interface in the Fu River during slight and dramatic increases in flow volume caused by concentrated rainfall and water diversion projects. Specifically, a slight flow volume rise increased the release of NH4+-N from the sediment, inhibited sedimentation of NO3--N, decreased the mineralisation rate, increased the nitrification rate, and had little effect on the denitrification process, ultimately increasing the nitrogen load to the river water. A dramatic increase in flow volume simultaneously increased NH4+-N and NO3--N exchange fluxes, inhibited the mineralisation process, promoted nitrification-denitrification processes, and increased inorganic nitrogen consumption in the river. This study provides a solution for the re-pollution of rivers that occurs during the implementation of reservoir management and water diversion pro-jects. Furthermore, these results indicate a potential global nitrogen sink that may have been overlooked. |
| WOS关键词 | MICROBIAL COMMUNITY ; SUSPENDED SEDIMENTS ; NUTRIENT RELEASE ; WATER-QUALITY ; YELLOW-RIVER ; LAKE ; TRANSPORT ; ESTUARY ; NITRATE ; CARBON |
| 资助项目 | National Key Research and Develop-ment Program of China[2021YFD1700500] ; National Natural Science Foundation of China[42071053] ; National Science Foundation for Distinguished Young Scholars of Hebei Province of China[D2019503072] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000829282200017 |
| 出版者 | ELSEVIER |
| 资助机构 | National Key Research and Develop-ment Program of China ; National Natural Science Foundation of China ; National Science Foundation for Distinguished Young Scholars of Hebei Province of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/181649]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Wang, Shiqin |
| 作者单位 | 1.Chinese Acad Sci, Inst Genet & Dev Biol, Ctr Agr Resources Res, Key Lab Agr Water Resources, Shijiazhuang 050021, Peoples R China 2.Univ Chinese Acad Sci, Sino Danish Coll, Beijing 101408, Peoples R China 3.Sino Danish Ctr Educ & Res, Beijing 101408, Peoples R China 4.Chinese Acad Sci, Xiongan Inst Innovat, Beijing, Peoples R China 5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lue, Jiali,Wang, Shiqin,Liu, Binbin,et al. Slight flow volume rises increase nitrogen loading to nitrogen-rich river, while dramatic flow volume rises promote nitrogen consumption[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2022,844:11. |
| APA | Lue, Jiali,Wang, Shiqin,Liu, Binbin,Zheng, Wenbo,Tan, Kangda,&Song, Xianfang.(2022).Slight flow volume rises increase nitrogen loading to nitrogen-rich river, while dramatic flow volume rises promote nitrogen consumption.SCIENCE OF THE TOTAL ENVIRONMENT,844,11. |
| MLA | Lue, Jiali,et al."Slight flow volume rises increase nitrogen loading to nitrogen-rich river, while dramatic flow volume rises promote nitrogen consumption".SCIENCE OF THE TOTAL ENVIRONMENT 844(2022):11. |
入库方式： OAI收割
来源：地理科学与资源研究所
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