[1]Yu Runhao,Wang Guoliang,Yang Yanfen.Attribution Analysis of Water and Sediment Changes Based on Budyko Hypothesis[J].Research of Soil and Water Conservation,2023,30(06):86-92,101.[doi:10.13869/j.cnki.rswc.2023.06.019]
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Attribution Analysis of Water and Sediment Changes Based on Budyko Hypothesis
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
30
Number of periods:
2023 06
Page number:
86-92,101
Column:
Public date:
2023-10-10
- Title:
- Attribution Analysis of Water and Sediment Changes Based on Budyko Hypothesis
- CLC:
- S157.1; P333.5
- DOI:
- 10.13869/j.cnki.rswc.2023.06.019
- Abstract:
- [Objective] The aim of this study is to explore the change mechanism of runoff and sediment in small watershed, improve and optimize the treatment scheme, and achieve high-quality sustainable ecological development of the Loess Plateau. [Methods] The small watershed of Zhifanggou in Ansai was taken as the research object. Mann-Kendall trend approach and Pettitt mutation test were used to analyze the trend of basin rainfall and sediment discharge, and identify the mutation point, and elastic coefficient method was used to carry out the runoff and sediment change attribution analysis to identify the climate change and human activities on runoff and sediment quantity contribution. [Results](1)Both runoff and sediment transport showed a decreasing trend, in which the decreasing trend of runoff was not significant, but the decreasing trend of sediment transport was extremely significant.(2)With the change of time, the contribution rate of human activities to runoff change increased gradually.(3)The influence degree of human activities on sediment transport gradually increased with time, and finally tended to 96%. [Conclusion] Human activities are the main influencing factors of runoff and sediment transport, and returning farmland to forest is an effective method for soil erosion control in the Loess Plateau.
- References:
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Last Update:
2023-10-10