[1]Song Geqing,Ma Xiaoyan,Wang Maolin,et al.Runoff evolution and attribution analysis of typical river basins in the Yangtze River based on Budyko theory[J].Research of Soil and Water Conservation,2025,32(01):172-180.[doi:10.13869/j.cnki.rswc.2025.01.034]
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Runoff evolution and attribution analysis of typical river basins in the Yangtze River based on Budyko theory
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
32
Number of periods:
2025 01
Page number:
172-180
Column:
Public date:
2025-01-10
- Title:
- Runoff evolution and attribution analysis of typical river basins in the Yangtze River based on Budyko theory
- CLC:
- P333
- DOI:
- 10.13869/j.cnki.rswc.2025.01.034
- Abstract:
- [Objective]The aims of this study are to explore the runoff evolution and driving factors in the typical Yangtze River basin under changing environment, to quantify the contribution rate of climate change and underlying surface change to the runoff change in the basin, and to provide scientific basis for the optimal allocation of water resources and basin management in the Baishuijiang River basin. [Method]Mann-Kendall trend test, cross wavelet analysis and Budyko theory were used to explore the evolution pattern of annual runoff and its influencing factors in Baishui River Basin from 1970 to 2016. [Results](1)The annual runoff in the Baishui River Basin showed a significant(p<0.05)decreasing trend, and the year of sudden changes in runoff and precipitation was all in 1994.(2)There was a positive correlation between annual runoff and annual precipitation in the Baishui River Basin. The runoff depth was the most sensitive to annual precipitation in the influence period(1995—2016)compared with the base period(1970—1994), followed by potential evapotranspiration and underlying surface parameters.(3)The contribution rates of underlying surface, annual precipitation and potential evapotranspiration to runoff in Baishui River Basin were quantitatively analyzed. Among them, the contribution rate of underlying surface was 46.14%, the contribution rate of precipitation was 41.02%, and the contribution rate of potential evapotranspiration was 12.84%. [Conclusion]The annual runoff and annual precipitation in the Baishui River Basin showed a downward trend from 1970 to 2016. The driving factors of runoff in the Baishui River Basin were due to the combined effects of climate and human activities. Precipitation was the main climatic factor leading to the decrease of runoff in Baishui River Basin, and the change of underlying surface was a key factor for the decrease of runoff in Baishui River Basin.
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Last Update:
2025-01-10