Synergistic evolution and attribution analysis of water-sediment in the middle and lower reaches of the Yangtze River
Study area: The Yangtze RiverStudy focus: Climatic variation and anthropogenic factors have a far-reaching impact on the evolution of runoff and sediment in the middle and lower Yangtze River. We introduced IHA-RVA and Copula functions, and used Budyko and sediment decomposition method. Under the ef...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-02-01
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| Series: | Journal of Hydrology: Regional Studies |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214581823003130 |
| _version_ | 1797342163291340800 |
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| author | Wenxian Guo Bing Wang Xuyang Jiao Lintong Huang Huan Yang Long Yu Hongxiang Wang |
| author_facet | Wenxian Guo Bing Wang Xuyang Jiao Lintong Huang Huan Yang Long Yu Hongxiang Wang |
| author_sort | Wenxian Guo |
| collection | DOAJ |
| description | Study area: The Yangtze RiverStudy focus: Climatic variation and anthropogenic factors have a far-reaching impact on the evolution of runoff and sediment in the middle and lower Yangtze River. We introduced IHA-RVA and Copula functions, and used Budyko and sediment decomposition method. Under the effect of climatic variation and anthropogenic factors, the co-evaluation system and attribution analysis of runoff and sediment change are established. This study clarified the synergistic evolution law of water-sediment.New hydrological insights for the area: We found that the interannual variation trends of sediment transport at various stations in the middle and lower reaches of the Yangtze River during the period from 1954 to 2019 were more pronounced compared to the variations in runoff. Moreover, the degree of changes in water-sediment consistency varied among these stations, with water-sediment consistency gradually recovering with an increase in distance from the upstream cascade reservoirs. Human factors contributed 52.68–74.16% to the changes in runoff and 89.40–94.15% to the changes in sediment transport. Variation of water-sediment and its consistency in the middle and lower reaches of the Yangtze River are mainly related to human factors. The research results can provide some assistance to decision-makers in formulating regional water-sediment regulation planning frameworks. |
| first_indexed | 2024-03-08T10:29:21Z |
| format | Article |
| id | doaj.art-5366e2178f384aadab67f21b9e750003 |
| institution | Directory Open Access Journal |
| issn | 2214-5818 |
| language | English |
| last_indexed | 2024-03-08T10:29:21Z |
| publishDate | 2024-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Hydrology: Regional Studies |
| spelling | doaj.art-5366e2178f384aadab67f21b9e7500032024-01-27T06:55:00ZengElsevierJournal of Hydrology: Regional Studies2214-58182024-02-0151101626Synergistic evolution and attribution analysis of water-sediment in the middle and lower reaches of the Yangtze RiverWenxian Guo0Bing Wang1Xuyang Jiao2Lintong Huang3Huan Yang4Long Yu5Hongxiang Wang6North China University of Water Resources and Electric Power, Zhengzhou 450045, ChinaNorth China University of Water Resources and Electric Power, Zhengzhou 450045, ChinaNorth China University of Water Resources and Electric Power, Zhengzhou 450045, ChinaNorth China University of Water Resources and Electric Power, Zhengzhou 450045, ChinaNorth China University of Water Resources and Electric Power, Zhengzhou 450045, ChinaNorth China University of Water Resources and Electric Power, Zhengzhou 450045, ChinaCorresponding author.; North China University of Water Resources and Electric Power, Zhengzhou 450045, ChinaStudy area: The Yangtze RiverStudy focus: Climatic variation and anthropogenic factors have a far-reaching impact on the evolution of runoff and sediment in the middle and lower Yangtze River. We introduced IHA-RVA and Copula functions, and used Budyko and sediment decomposition method. Under the effect of climatic variation and anthropogenic factors, the co-evaluation system and attribution analysis of runoff and sediment change are established. This study clarified the synergistic evolution law of water-sediment.New hydrological insights for the area: We found that the interannual variation trends of sediment transport at various stations in the middle and lower reaches of the Yangtze River during the period from 1954 to 2019 were more pronounced compared to the variations in runoff. Moreover, the degree of changes in water-sediment consistency varied among these stations, with water-sediment consistency gradually recovering with an increase in distance from the upstream cascade reservoirs. Human factors contributed 52.68–74.16% to the changes in runoff and 89.40–94.15% to the changes in sediment transport. Variation of water-sediment and its consistency in the middle and lower reaches of the Yangtze River are mainly related to human factors. The research results can provide some assistance to decision-makers in formulating regional water-sediment regulation planning frameworks.http://www.sciencedirect.com/science/article/pii/S2214581823003130IHA-RVACopulaWater-sedimentCo-evolution characteristicsYangtze River |
| spellingShingle | Wenxian Guo Bing Wang Xuyang Jiao Lintong Huang Huan Yang Long Yu Hongxiang Wang Synergistic evolution and attribution analysis of water-sediment in the middle and lower reaches of the Yangtze River Journal of Hydrology: Regional Studies IHA-RVA Copula Water-sediment Co-evolution characteristics Yangtze River |
| title | Synergistic evolution and attribution analysis of water-sediment in the middle and lower reaches of the Yangtze River |
| title_full | Synergistic evolution and attribution analysis of water-sediment in the middle and lower reaches of the Yangtze River |
| title_fullStr | Synergistic evolution and attribution analysis of water-sediment in the middle and lower reaches of the Yangtze River |
| title_full_unstemmed | Synergistic evolution and attribution analysis of water-sediment in the middle and lower reaches of the Yangtze River |
| title_short | Synergistic evolution and attribution analysis of water-sediment in the middle and lower reaches of the Yangtze River |
| title_sort | synergistic evolution and attribution analysis of water sediment in the middle and lower reaches of the yangtze river |
| topic | IHA-RVA Copula Water-sediment Co-evolution characteristics Yangtze River |
| url | http://www.sciencedirect.com/science/article/pii/S2214581823003130 |
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