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Analysis of Runoff Changes in Small Coastal Watershed in Southeast China Based on Budyko Equation with Variable Parameters
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Yue-jiao ZHOU1, Zeng-chuan DONG1, Guang-yue CHEN2, Chao XU2, Mei CHU2, Sheng-nan ZHU1
Water Resources and Power | 2023, 41(7) : 12 - 15
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Water Resources and Power | 2023, 41(7): 12-15
• HYDROLOGY，WATER RESOURCES AND ENVIRONMENT •
Analysis of Runoff Changes in Small Coastal Watershed in Southeast China Based on Budyko Equation with Variable Parameters
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Yue-jiao ZHOU1, Zeng-chuan DONG1, Guang-yue CHEN2, Chao XU2, Mei CHU2, Sheng-nan ZHU1
Affiliations
  • 1.College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China
  • 2.Wenzhou Hydrological Management Center, Wenzhou 325000, China
Published: 2023-07-25 doi: 10.20040/j.cnki.1000-7709.2023.20221653
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Affected by the changes of East Asian monsoon and human activities, the hydrological processes in the southeast coastal area have been changed, and the rational development and utilization of regional water resources are facing challenges. Taking Feiyunjiang as an example, the variable parameter Budyko equation based on the moving average treatment was constructed to analyze the runoff change in the basin, and the future runoff change trend was predicted qualitatively combined with the CMIP5 model. The results show that the time-varying Budyko model is much better than the constant parameter Budyko model in the simulation of annual runoff. The hydrometeorological elements in Feiyunjiang Basin showed an upward trend after eliminating the influence of cycle. The contribution rate of climate to runoff variation in the Feiyunjiang Basin reached 85.56%, and showed a downward trend. Compared with before 2000, the contribution rate of the underlying surface to runoff change increased by 6% from 2000 to 2020. At the same time, the influence intensity of climate on runoff change changed sharply. The influence of the underlying surface on runoff reduction was weakened. In addition, under the RCP4.5 scenario, the runoff in the Feiyunjiang Basin will show a decreasing trend in the future. The research results can provide theoretical support for regional water resources planning.

climate  /  underlying surface  /  variable parameter Budyko  /  Feiyunjiang Basin
Yue-jiao ZHOU, Zeng-chuan DONG, Guang-yue CHEN, Chao XU, Mei CHU, Sheng-nan ZHU. Analysis of Runoff Changes in Small Coastal Watershed in Southeast China Based on Budyko Equation with Variable Parameters[J]. Water Resources and Power, 2023 , 41 (7) : 12 -15 . DOI: 10.20040/j.cnki.1000-7709.2023.20221653
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Year 2023 volume 41 Issue 7
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Article Info
doi: 10.20040/j.cnki.1000-7709.2023.20221653
  • Receive Date：2022-08-11
  • Online Date：2026-01-28
  • Published：2023-07-25
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History
  • Received：2022-08-11
  • Revised：2022-09-13
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Affiliations
    1.College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China
    2.Wenzhou Hydrological Management Center, Wenzhou 325000, China
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https://castjournals.cast.org.cn/joweb/sdnykx/EN/10.20040/j.cnki.1000-7709.2023.20221653
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光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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