Hydrological dynamics of the Yangtze river-Dongting lake system after the construction of the three Gorges dam
Abstract The Yangtze River-Dongting Lake link has gotten a lot of attention as a because of the Three Gorges Project. However, the hydrological dynamic process and future direction of the river-lake interaction in the context of sediment reduction are yet unknown. Based on Dongting Lake Basin runoff...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-024-83751-3 |
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| author | Xiaohe Lai Huangjie Zou Jun Jiang Jianping Jia Yan Liu Wen Wei |
| author_facet | Xiaohe Lai Huangjie Zou Jun Jiang Jianping Jia Yan Liu Wen Wei |
| author_sort | Xiaohe Lai |
| collection | DOAJ |
| description | Abstract The Yangtze River-Dongting Lake link has gotten a lot of attention as a because of the Three Gorges Project. However, the hydrological dynamic process and future direction of the river-lake interaction in the context of sediment reduction are yet unknown. Based on Dongting Lake Basin runoff and sediment data from 1961 to 2020, as well as field monitoring data of turbidity and flow velocity from Yichang to Chenglingji section of the Yangtze River, this paper examines the runoff and sediment variation law and hydrological dynamic process of Chenglingji, the only outlet connecting Dongting Lake to the Yangtze River, and reveals the development trend of the river-lake relationship. After absorbing high-concentration material from Dongting Lake, Chenglingji’s turbidity and energy per unit water body alter dramatically. When the high-speed flow from the mainstream of the Yangtze River and the gentle flow of Dongting Lake pass through the “deep trough” of Chenglingji, the two streams of high and low flow velocity intersect and decelerate to dissipate energy, and the flow structure becomes more complicated. Dongting Lake has experienced three stages: deposition (1961–2007) -erosion (2008–2017) -deposition (2018–2020). The river-lake relationship will tend to a new dynamic equilibrium state in the future. |
| format | Article |
| id | doaj-art-81f79107249c460c812944e170f3aefd |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-81f79107249c460c812944e170f3aefd2025-01-05T12:19:18ZengNature PortfolioScientific Reports2045-23222025-01-0115111310.1038/s41598-024-83751-3Hydrological dynamics of the Yangtze river-Dongting lake system after the construction of the three Gorges damXiaohe Lai0Huangjie Zou1Jun Jiang2Jianping Jia3Yan Liu4Wen Wei5Department of Water Resources and Harbor Engineering, College of Civil Engineering, Fuzhou UniversityDepartment of Water Resources and Harbor Engineering, College of Civil Engineering, Fuzhou UniversityFujian Institute of Geological SurveyDepartment of Water Resources and Harbor Engineering, College of Civil Engineering, Fuzhou UniversityState Key Laboratory of Estuarine and Coastal Research, East China Normal UniversitySchool of Ocean Engineering and Technology/Institute of Estuarine and Coastal Research, Sun Yat-sen UniversityAbstract The Yangtze River-Dongting Lake link has gotten a lot of attention as a because of the Three Gorges Project. However, the hydrological dynamic process and future direction of the river-lake interaction in the context of sediment reduction are yet unknown. Based on Dongting Lake Basin runoff and sediment data from 1961 to 2020, as well as field monitoring data of turbidity and flow velocity from Yichang to Chenglingji section of the Yangtze River, this paper examines the runoff and sediment variation law and hydrological dynamic process of Chenglingji, the only outlet connecting Dongting Lake to the Yangtze River, and reveals the development trend of the river-lake relationship. After absorbing high-concentration material from Dongting Lake, Chenglingji’s turbidity and energy per unit water body alter dramatically. When the high-speed flow from the mainstream of the Yangtze River and the gentle flow of Dongting Lake pass through the “deep trough” of Chenglingji, the two streams of high and low flow velocity intersect and decelerate to dissipate energy, and the flow structure becomes more complicated. Dongting Lake has experienced three stages: deposition (1961–2007) -erosion (2008–2017) -deposition (2018–2020). The river-lake relationship will tend to a new dynamic equilibrium state in the future.https://doi.org/10.1038/s41598-024-83751-3Hydrological processRiver-lake relationshipDam constructionYangtze riverDongting lake |
| spellingShingle | Xiaohe Lai Huangjie Zou Jun Jiang Jianping Jia Yan Liu Wen Wei Hydrological dynamics of the Yangtze river-Dongting lake system after the construction of the three Gorges dam Scientific Reports Hydrological process River-lake relationship Dam construction Yangtze river Dongting lake |
| title | Hydrological dynamics of the Yangtze river-Dongting lake system after the construction of the three Gorges dam |
| title_full | Hydrological dynamics of the Yangtze river-Dongting lake system after the construction of the three Gorges dam |
| title_fullStr | Hydrological dynamics of the Yangtze river-Dongting lake system after the construction of the three Gorges dam |
| title_full_unstemmed | Hydrological dynamics of the Yangtze river-Dongting lake system after the construction of the three Gorges dam |
| title_short | Hydrological dynamics of the Yangtze river-Dongting lake system after the construction of the three Gorges dam |
| title_sort | hydrological dynamics of the yangtze river dongting lake system after the construction of the three gorges dam |
| topic | Hydrological process River-lake relationship Dam construction Yangtze river Dongting lake |
| url | https://doi.org/10.1038/s41598-024-83751-3 |
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