Hydrological drought in the lower reaches of the Yangtze River (China): a 70-year data analysis
The combined impact of climate change and human activity has brought uncertainty regarding hydrological drought in the lower reaches of the Yangtze River (LYR), thereby threatening the security of regional water resources. To address this uncertainty, based on data from over 70 years, the trends, mu...
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Frontiers Media S.A.
2025-02-01
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| Series: | Frontiers in Marine Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmars.2025.1534674/full |
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| author | Hua Ge Hua Ge Lingling Zhu Bing Mao Bing Mao |
| author_facet | Hua Ge Hua Ge Lingling Zhu Bing Mao Bing Mao |
| author_sort | Hua Ge |
| collection | DOAJ |
| description | The combined impact of climate change and human activity has brought uncertainty regarding hydrological drought in the lower reaches of the Yangtze River (LYR), thereby threatening the security of regional water resources. To address this uncertainty, based on data from over 70 years, the trends, mutations, and causes of hydrological drought in the LYR were analyzed using the Mann–Kendall test method. The results of this study show that the most extreme annual hydrological drought situation defined by the daily minimum value improved, but the scenario defined by the monthly average intensified in September and October after the flood season, with a mutation in the 2000s after the Three Gorges Reservoir. The continuous decline in water availability during the flood season and the water storage of reservoirs after flooding made 2022 the most severe drought period in nearly 70 years. The rapid storage of reservoirs after flooding has promoted hydrological droughts in the LYR. In future scenarios, the impact of riverbed cutting on hydrological drought should be comprehensively evaluated, and the effects of future tide level changes under global climate change conditions should be measured. |
| format | Article |
| id | doaj-art-8672deddad29482d9d9d8fbf81436cfa |
| institution | Kabale University |
| issn | 2296-7745 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Marine Science |
| spelling | doaj-art-8672deddad29482d9d9d8fbf81436cfa2025-02-10T05:16:11ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452025-02-011210.3389/fmars.2025.15346741534674Hydrological drought in the lower reaches of the Yangtze River (China): a 70-year data analysisHua Ge0Hua Ge1Lingling Zhu2Bing Mao3Bing Mao4Changjiang River Scientific Research Institute, Wuhan, ChinaKey Laboratory of River & Lake Regulation and Flood Protection in the Middle and Lower Reaches of Changjiang River, Ministry of Water Resources, Wuhan, ChinaBureau of Hydrology, Changjiang Water Resources Commission, Wuhan, ChinaChangjiang River Scientific Research Institute, Wuhan, ChinaKey Laboratory of River & Lake Regulation and Flood Protection in the Middle and Lower Reaches of Changjiang River, Ministry of Water Resources, Wuhan, ChinaThe combined impact of climate change and human activity has brought uncertainty regarding hydrological drought in the lower reaches of the Yangtze River (LYR), thereby threatening the security of regional water resources. To address this uncertainty, based on data from over 70 years, the trends, mutations, and causes of hydrological drought in the LYR were analyzed using the Mann–Kendall test method. The results of this study show that the most extreme annual hydrological drought situation defined by the daily minimum value improved, but the scenario defined by the monthly average intensified in September and October after the flood season, with a mutation in the 2000s after the Three Gorges Reservoir. The continuous decline in water availability during the flood season and the water storage of reservoirs after flooding made 2022 the most severe drought period in nearly 70 years. The rapid storage of reservoirs after flooding has promoted hydrological droughts in the LYR. In future scenarios, the impact of riverbed cutting on hydrological drought should be comprehensively evaluated, and the effects of future tide level changes under global climate change conditions should be measured.https://www.frontiersin.org/articles/10.3389/fmars.2025.1534674/fullhydrological droughttrend and mutationLower Yangtze Riverextreme droughtdownstream reservoir |
| spellingShingle | Hua Ge Hua Ge Lingling Zhu Bing Mao Bing Mao Hydrological drought in the lower reaches of the Yangtze River (China): a 70-year data analysis Frontiers in Marine Science hydrological drought trend and mutation Lower Yangtze River extreme drought downstream reservoir |
| title | Hydrological drought in the lower reaches of the Yangtze River (China): a 70-year data analysis |
| title_full | Hydrological drought in the lower reaches of the Yangtze River (China): a 70-year data analysis |
| title_fullStr | Hydrological drought in the lower reaches of the Yangtze River (China): a 70-year data analysis |
| title_full_unstemmed | Hydrological drought in the lower reaches of the Yangtze River (China): a 70-year data analysis |
| title_short | Hydrological drought in the lower reaches of the Yangtze River (China): a 70-year data analysis |
| title_sort | hydrological drought in the lower reaches of the yangtze river china a 70 year data analysis |
| topic | hydrological drought trend and mutation Lower Yangtze River extreme drought downstream reservoir |
| url | https://www.frontiersin.org/articles/10.3389/fmars.2025.1534674/full |
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