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Reservoir artificial flood discharge is a critical driver for the compositional and functional shifts of dissolved organic matter in river mouth

文献类型：期刊论文

作者Niu, Donglei1,6; Tan, Yang6; Ma, Chao2; Qi, Yulin2,3; Li, Yanan4; Li, Yanfang6; Tang, Jianhui5,6
刊名COMMUNICATIONS EARTH & ENVIRONMENT
出版日期2025-12-01
卷号6期号:1页码:10
DOI10.1038/s43247-025-02920-y
通讯作者Tang, Jianhui(jhtang@yic.ac.cn)
英文摘要While dam-based regulation modifies the natural transport rhythm of riverine materials, the effects of artificial flooding on river mouth dissolved organic matter (DOM) dynamics remain poorly constrained. The Water-Sediment Regulation Scheme in the Yellow River provides a unique snapshot. Distinct organic matter signatures were observed between the water release and sediment flushing phases using optical and molecular techniques. Here we show that during water release phase, rapid discharge of upper-layer water from Xiaolangdi Reservoir increased the proportion of bio-labile DOM in the Yellow River mouth. Conversely, during sediment flushing phase, resuspension and then release of bottom sediments from the reservoir enhanced aromatic DOM components. Although the relative abundance and composition of particulate organic matter remained unchanged during water release phase, it increased during sediment flushing phase. These findings demonstrate that reservoir operations reconfigure river-ocean carbon flows, emphasizing the need to integrate dam management strategies into global carbon cycling models.
WOS关键词WATER-SEDIMENT REGULATION ; YELLOW-RIVER ; LOWER REACHES ; XIAOLANGDI RESERVOIR ; REGULATION SCHEME ; CARBON ; IMPACTS ; FLUXES ; INDEX ; MASS
WOS研究方向Environmental Sciences & Ecology ; Geology ; Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:001633616400003
资助机构National Natural Science Foundation of China (National Science Foundation of China)
源URL[http://ir.yic.ac.cn/handle/133337/41952]  
专题支撑部门_所级公共技术服务中心
通讯作者Tang, Jianhui
作者单位1.Univ Chinese Acad Sci, Beijing, Peoples R China
2.Tianjin Univ, Inst Surface Earth Syst Sci, Sch Earth Syst Sci, Tianjin, Peoples R China
3.Tianjin Univ, Tianjin Key Lab Earth Crit Zone Sci & Sustainable, Tianjin, Peoples R China
4.Taiyuan Univ Sci & Technol, Sch Resources & Environm, Taiyuan, Peoples R China
5.Beibu Gulf Univ, Coll Marine Sci, Guangxi Key Lab Marine Environm Change & Disaster, Pinglu Canal & Beibu Gulf Coastal Ecosyst Observat, Qinzhou, Peoples R China
6.Chinese Acad Sci, Shandong Key Lab Coastal Environm Proc, Yantai Inst Coastal Zone Res, Yantai, Peoples R China
推荐引用方式
GB/T 7714		 Niu, Donglei,Tan, Yang,Ma, Chao,et al. Reservoir artificial flood discharge is a critical driver for the compositional and functional shifts of dissolved organic matter in river mouth[J]. COMMUNICATIONS EARTH & ENVIRONMENT,2025,6(1):10.
APA Niu, Donglei.,Tan, Yang.,Ma, Chao.,Qi, Yulin.,Li, Yanan.,...&Tang, Jianhui.(2025).Reservoir artificial flood discharge is a critical driver for the compositional and functional shifts of dissolved organic matter in river mouth.COMMUNICATIONS EARTH & ENVIRONMENT,6(1),10.
MLA Niu, Donglei,et al."Reservoir artificial flood discharge is a critical driver for the compositional and functional shifts of dissolved organic matter in river mouth".COMMUNICATIONS EARTH & ENVIRONMENT 6.1(2025):10.

入库方式： OAI收割

来源：烟台海岸带研究所

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