The impact of human activities and climate change on the eco-hydrological processes in the Yangtze River basin
Study region: The Yangtze River Basin Study focus: To accurately quantify the impact of climate change and human activities on the hydrological regime, the Long Short-Term Memory (LSTM) models for meteorology-runoff simulation are constructed for the multi-year average monthly flow process. The Indi...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-06-01
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| Series: | Journal of Hydrology: Regional Studies |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214581824001010 |
| _version_ | 1827228899454484480 |
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| author | Ning He Wenxian Guo Jiaqi Lan Zhiqian Yu Hongxiang Wang |
| author_facet | Ning He Wenxian Guo Jiaqi Lan Zhiqian Yu Hongxiang Wang |
| author_sort | Ning He |
| collection | DOAJ |
| description | Study region: The Yangtze River Basin Study focus: To accurately quantify the impact of climate change and human activities on the hydrological regime, the Long Short-Term Memory (LSTM) models for meteorology-runoff simulation are constructed for the multi-year average monthly flow process. The Indicators of Hydrologic Alteration (IHA) method is used to quantitatively evaluate the hydrological processes in the watershed. Additionally, the grey relational analysis method is employed to explore key indicators affecting the ecological effects of fish. New hydrological insights for the region: The streamflow of the Yangtze River mainstem and its seven tributaries increases as the distance from the river mouth decreases. The degree of hydrological changes in various basins is moderate (33–66%). Except for the Jialing River, Wu River, and Poyang Lake, the streamflow changes in other basins are mainly influenced by human activities. Among them, Yichang is most affected by human activities (75.43%), while Wu River is most affected by climate change (67.05%). The rate of land use development has reached 116.9% over the past 20 years, and vegetation coverage has been increasing at a linear rate of 0.003 per year, Summer rainfall is significantly positively correlated with flow, while temperature is significantly negatively correlated. The Three Gorges Dam has reduced the spawning scale of fish and identified ''October runoff'' as the key indicator. These findings contribute to a deeper understanding of the response of watershed water resources and ecological effects. |
| first_indexed | 2024-04-24T11:38:04Z |
| format | Article |
| id | doaj.art-2b9a6de93ee54e08844b53b66abba02f |
| institution | Directory Open Access Journal |
| issn | 2214-5818 |
| language | English |
| last_indexed | 2025-03-21T18:21:11Z |
| publishDate | 2024-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Hydrology: Regional Studies |
| spelling | doaj.art-2b9a6de93ee54e08844b53b66abba02f2024-06-09T05:27:50ZengElsevierJournal of Hydrology: Regional Studies2214-58182024-06-0153101753The impact of human activities and climate change on the eco-hydrological processes in the Yangtze River basinNing He0Wenxian Guo1Jiaqi Lan2Zhiqian Yu3Hongxiang Wang4North China University of Water Resources and Electric Power, Zhengzhou 450045, ChinaCorresponding authors.; North 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 authors.; North China University of Water Resources and Electric Power, Zhengzhou 450045, ChinaStudy region: The Yangtze River Basin Study focus: To accurately quantify the impact of climate change and human activities on the hydrological regime, the Long Short-Term Memory (LSTM) models for meteorology-runoff simulation are constructed for the multi-year average monthly flow process. The Indicators of Hydrologic Alteration (IHA) method is used to quantitatively evaluate the hydrological processes in the watershed. Additionally, the grey relational analysis method is employed to explore key indicators affecting the ecological effects of fish. New hydrological insights for the region: The streamflow of the Yangtze River mainstem and its seven tributaries increases as the distance from the river mouth decreases. The degree of hydrological changes in various basins is moderate (33–66%). Except for the Jialing River, Wu River, and Poyang Lake, the streamflow changes in other basins are mainly influenced by human activities. Among them, Yichang is most affected by human activities (75.43%), while Wu River is most affected by climate change (67.05%). The rate of land use development has reached 116.9% over the past 20 years, and vegetation coverage has been increasing at a linear rate of 0.003 per year, Summer rainfall is significantly positively correlated with flow, while temperature is significantly negatively correlated. The Three Gorges Dam has reduced the spawning scale of fish and identified ''October runoff'' as the key indicator. These findings contribute to a deeper understanding of the response of watershed water resources and ecological effects.http://www.sciencedirect.com/science/article/pii/S2214581824001010IHA-RVASSA-LSTMDriversFish reproductionYangtze River |
| spellingShingle | Ning He Wenxian Guo Jiaqi Lan Zhiqian Yu Hongxiang Wang The impact of human activities and climate change on the eco-hydrological processes in the Yangtze River basin Journal of Hydrology: Regional Studies IHA-RVA SSA-LSTM Drivers Fish reproduction Yangtze River |
| title | The impact of human activities and climate change on the eco-hydrological processes in the Yangtze River basin |
| title_full | The impact of human activities and climate change on the eco-hydrological processes in the Yangtze River basin |
| title_fullStr | The impact of human activities and climate change on the eco-hydrological processes in the Yangtze River basin |
| title_full_unstemmed | The impact of human activities and climate change on the eco-hydrological processes in the Yangtze River basin |
| title_short | The impact of human activities and climate change on the eco-hydrological processes in the Yangtze River basin |
| title_sort | impact of human activities and climate change on the eco hydrological processes in the yangtze river basin |
| topic | IHA-RVA SSA-LSTM Drivers Fish reproduction Yangtze River |
| url | http://www.sciencedirect.com/science/article/pii/S2214581824001010 |
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