[1]XIE Jian,GAO Peng,MU Xingmin,et al.Variation Characteristics of Runoff in Beiluo River Basin over the Past 80 Years and Its Attribution Analysis[J].Research of Soil and Water Conservation,2023,30(02):122-128.[doi:10.13869/j.cnki.rswc.2023.02.053]
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
30
Number of periods:
2023 02
Page number:
122-128
Column:
Public date:
2023-03-10
- Title:
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Variation Characteristics of Runoff in Beiluo River Basin over the Past 80 Years and Its Attribution Analysis
- Author(s):
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XIE Jian1, GAO Peng1,2, MU Xingmin1,2, WU Changxue1
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(1.State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi 712100, China; 2.Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, China)
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- Keywords:
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runoff change; climate change; human activities; double cumulative curve; the Beiluo River Basin
- CLC:
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P333.1
- DOI:
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10.13869/j.cnki.rswc.2023.02.053
- Abstract:
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Studying the variation characteristics of runoff change and its driving factors in the Beiluo River Basin can provide a scientific basis for the governance planning and ecological environment construction in the basin. Based on the runoff data of the Beiluo River Basin from 1937 to 2018, this study analyzed the characteristics of runoff by using modern mathematical statistics, and assessed the influence of climate change on runoff in combination with meteorological data from 1952 to 2019. The contribution rates of climate change and human activities to runoff change were quantitatively analyzed by using the precipitation-runoff double cumulative curve method. The results showed that the average annual runoff in the Beiluo River Basin decreased significantly from 1937 to 2018(p<0.01), and suddenly changed in 1970 and 1994, with a main cycle change of 54 years. From 1956 to 2019, the precipitation in the Beiluo River Basin had no significant change trend(p>0.05), but the temperature had increased significantly(p<0.01). Climate change had reduced the runoff of the Beiluo River. Compared with the period from 1957 to 1970, the contribution rates of human activities to runoff reduction in the periods of 1971—1994 and 1995—2018 were as high as 92% and 97%, respectively, which were the key factors for reduction and mutation of runoff in the Beiluo River Basin.