[1]ZHANG Kai,LU Kexin,LI Peng,et al.Trend of Runoff and Sediment Change and Its Driving Factors in the Middle and Upper Reaches of Fenhe River in the Past 60 Years[J].Research of Soil and Water Conservation,2020,27(04):54-59.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
27
Number of periods:
2020 04
Page number:
54-59
Column:
目次
Public date:
2020-06-20
- Title:
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Trend of Runoff and Sediment Change and Its Driving Factors in the Middle and Upper Reaches of Fenhe River in the Past 60 Years
- Author(s):
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ZHANG Kai1, LU Kexin1,2, LI Peng1,2, LI Zhanbin1,2, SHI Peng1,2, YANG Shutong2
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(1.Key Laboratory of National Forestry Administration on Ecological Hydrology and Disaster Prevention in Arid Regions, Xi'an University of Technology, Xi'an 710048, China; 2.State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China Hydraulic, Xi'an University of Technology, Xi'an 710048, China)
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- Keywords:
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middle and upper reaches of Fenhe River; runoff and sediment change; attribution analysis; climate change; human activity; contribution rate
- CLC:
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P333
- DOI:
-
-
- Abstract:
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In order to reveal the change trend and driving factors on runoff and sediment changes in the middle and upper reaches of Fenhe River in the past 60 years, the Mann-Kendall test method was used to analyze the change trend and mutation of the annual runoff and annual sediment transport sequences, and the double cumulative curve method was used to quantitatively calculate the contribution rates of climate change and human activities to runoff and sediment changes in the middle and upper reaches of Fenhe River. The results showed that the annual runoff and annual sediment transport volume in the middle and upper reaches of Fenhe River had the significant decreasing trend from 1963 to 2016 (p<0.01), and the mutation years are 1981 and 1980, respectively; climate change had little impact on annual runoff and annual sediment transport reduction in the middle and upper reaches of Fenhe River; a series of human activities such as socio-economic development, water conservancy project construction and various soil and water conservation measures were the main reasons for the annual runoff and annual sediment transport reduction; the contribution rates of climate change and human activities to the reduction of annual runoff reduction were 29% and 71%, respectively, and those of climate change and human activities for the reduction of sediment transport were 22% and 78%, respectively. These results would provide a scientific support for the rational development and utilization of water resources, the effective management of water environment protection and the macro-scientific planning of soil and water conservation work in the upper and middle reaches of Fenhe River.