Hydrological changes in the Upper Yellow River under the impact of upstream cascade reservoirs over the past 70 years
Study region: The Upper Yellow River Basin (UYRB), China. Study focus: In this study, a variety of mathematical statistical methods, the Indicators of Hydrologic Alteration—Range of Variability (IHA-RVA) method, and the newly proposed Flow Surplus-Deficit (QS-QD) method were integrated to analyze th...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-02-01
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| Series: | Journal of Hydrology: Regional Studies |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214581824004543 |
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| author | Jing Hu Xiong Zhou Yujun Yi Chunhui Li Xuan Wang Qiang Liu Jiansu Mao |
| author_facet | Jing Hu Xiong Zhou Yujun Yi Chunhui Li Xuan Wang Qiang Liu Jiansu Mao |
| author_sort | Jing Hu |
| collection | DOAJ |
| description | Study region: The Upper Yellow River Basin (UYRB), China. Study focus: In this study, a variety of mathematical statistical methods, the Indicators of Hydrologic Alteration—Range of Variability (IHA-RVA) method, and the newly proposed Flow Surplus-Deficit (QS-QD) method were integrated to analyze the impact of cascade dam development on hydrological changes over the past 70 years in the UYRB. Additionally, the Double Mass Curve (DMC) method was utilized to evaluate changes in annual sediment transport, quantifying the influences of precipitation and human activities. New hydrological insights for the region: Long-term statistical analysis revealed significant declining trends in both the annual runoff and sediment load following dam construction. Abrupt changes in runoff and sediment were identified during the study period in 1969 and 1987. Dam operations have altered the relationship between water and sediment, resulting in intensified summer flow deficits and winter-spring flow surpluses, with significant increases in flow deficit during July. The operation of the Longyangxia Reservoir and Liujiaxia Reservoir cascade systems exhibits cumulative effects over time and space. The proposed QS-QD method quantitatively estimates monthly flow variations and effectively addresses the limitations of RVA variation based on frequency. Furthermore, sediment transport at hydrological stations indicated a sequential downstream decrease, with human activities contributing between 95.93 % and 116.51 % to these changes. |
| format | Article |
| id | doaj-art-2214a0af7a264ba08ef912d168d7e462 |
| institution | Kabale University |
| issn | 2214-5818 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Hydrology: Regional Studies |
| spelling | doaj-art-2214a0af7a264ba08ef912d168d7e4622025-01-22T05:42:02ZengElsevierJournal of Hydrology: Regional Studies2214-58182025-02-0157102105Hydrological changes in the Upper Yellow River under the impact of upstream cascade reservoirs over the past 70 yearsJing Hu0Xiong Zhou1Yujun Yi2Chunhui Li3Xuan Wang4Qiang Liu5Jiansu Mao6Key Laboratory for Water and Sediment Sciences of Ministry of Education, School of Environment, Beijing Normal University, Beijing 100875, ChinaKey Laboratory for Water and Sediment Sciences of Ministry of Education, School of Environment, Beijing Normal University, Beijing 100875, ChinaKey Laboratory for Water and Sediment Sciences of Ministry of Education, School of Environment, Beijing Normal University, Beijing 100875, ChinaKey Laboratory for Water and Sediment Sciences of Ministry of Education, School of Environment, Beijing Normal University, Beijing 100875, China; Correspondence to: Beijing Normal University, Beijing 100875, China.State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, ChinaKey Laboratory for Water and Sediment Sciences of Ministry of Education, School of Environment, Beijing Normal University, Beijing 100875, ChinaKey Laboratory for Water and Sediment Sciences of Ministry of Education, School of Environment, Beijing Normal University, Beijing 100875, China; Correspondence to: Beijing Normal University, Beijing 100875, China.Study region: The Upper Yellow River Basin (UYRB), China. Study focus: In this study, a variety of mathematical statistical methods, the Indicators of Hydrologic Alteration—Range of Variability (IHA-RVA) method, and the newly proposed Flow Surplus-Deficit (QS-QD) method were integrated to analyze the impact of cascade dam development on hydrological changes over the past 70 years in the UYRB. Additionally, the Double Mass Curve (DMC) method was utilized to evaluate changes in annual sediment transport, quantifying the influences of precipitation and human activities. New hydrological insights for the region: Long-term statistical analysis revealed significant declining trends in both the annual runoff and sediment load following dam construction. Abrupt changes in runoff and sediment were identified during the study period in 1969 and 1987. Dam operations have altered the relationship between water and sediment, resulting in intensified summer flow deficits and winter-spring flow surpluses, with significant increases in flow deficit during July. The operation of the Longyangxia Reservoir and Liujiaxia Reservoir cascade systems exhibits cumulative effects over time and space. The proposed QS-QD method quantitatively estimates monthly flow variations and effectively addresses the limitations of RVA variation based on frequency. Furthermore, sediment transport at hydrological stations indicated a sequential downstream decrease, with human activities contributing between 95.93 % and 116.51 % to these changes.http://www.sciencedirect.com/science/article/pii/S2214581824004543The Upper Yellow River BasinReservoirsRunoff volumeSediment loadHydrological conditions |
| spellingShingle | Jing Hu Xiong Zhou Yujun Yi Chunhui Li Xuan Wang Qiang Liu Jiansu Mao Hydrological changes in the Upper Yellow River under the impact of upstream cascade reservoirs over the past 70 years Journal of Hydrology: Regional Studies The Upper Yellow River Basin Reservoirs Runoff volume Sediment load Hydrological conditions |
| title | Hydrological changes in the Upper Yellow River under the impact of upstream cascade reservoirs over the past 70 years |
| title_full | Hydrological changes in the Upper Yellow River under the impact of upstream cascade reservoirs over the past 70 years |
| title_fullStr | Hydrological changes in the Upper Yellow River under the impact of upstream cascade reservoirs over the past 70 years |
| title_full_unstemmed | Hydrological changes in the Upper Yellow River under the impact of upstream cascade reservoirs over the past 70 years |
| title_short | Hydrological changes in the Upper Yellow River under the impact of upstream cascade reservoirs over the past 70 years |
| title_sort | hydrological changes in the upper yellow river under the impact of upstream cascade reservoirs over the past 70 years |
| topic | The Upper Yellow River Basin Reservoirs Runoff volume Sediment load Hydrological conditions |
| url | http://www.sciencedirect.com/science/article/pii/S2214581824004543 |
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