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]
基于Budyko假设的水沙变化归因分析——以安塞纸坊沟小流域为例
- Title:
- Attribution Analysis of Water and Sediment Changes Based on Budyko Hypothesis
- 文章编号:
- 1005-3409(2023)06-0086-07
- 分类号:
- S157.1; P333.5
- 文献标志码:
- A
- 摘要:
- [目的]探究小流域径流泥沙变化机制,提升和优化治理方案,实现黄土高原生态高质量可持续发展。[方法]以安塞纸坊沟小流域为研究对象,采用Mann-Kendall趋势检验法和Pettitt突变检验对流域的降雨、径流和输沙量等进行了趋势分析和突变点判断,并使用弹性系数法对径流和泥沙变化归因进行了分析,识别出气候变化和人类活动对径流和输沙量影响的贡献率。[结果](1)径流和输沙量都呈现出下降趋势,其中径流下降趋势不显著,而输沙量下降趋势极显著;(2)径流变化对于降雨最为敏感,退耕还林以来,人类活动对于径流变化的贡献率随着时间变化占主导地位;(3)人类活动对于输沙量的影响程度也随时间逐渐增大,最终贡献率趋于96%。[结论]以退耕还林等措施为主导的人类活动,在黄土高原水土流失治理中取得显著成效。
- 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.
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相似文献/References:
[1]杜世勋,郭新亚,荣月静.基于Budyko假设和SCS-CN模型的河源区水源涵养功能研究[J].水土保持研究,2018,25(01):147.
DU Shixun,GUO Xinya,RONG Yuejing.Study on the Water Conservation Function Based on Budyko Hypothesis and SCS-CN Method in the Headstream Area of the Qinhe Basin[J].Research of Soil and Water Conservation,2018,25(06):147.
[2]王 陇,宋孝玉,李蓝君,等.黄土高原沟壑区典型小流域径流变化趋势及归因分析[J].水土保持研究,2021,28(04):48.
WANG Long,SONG Xiaoyu,LI Lanjun,et al.Variation Trend and Attribution Analysis of Runoff in Typical Small Watershed in Gully Region of the Loess Plateau[J].Research of Soil and Water Conservation,2021,28(06):48.
[3]杨雪琪,武 玮,郑从奇,等.基于Budyko假设的沂河流域径流变化归因识别[J].水土保持研究,2023,30(02):100.[doi:10.13869/j.cnki.rswc.2023.02.020]
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[4]马亚丽,牛最荣,张 芮,等.洮河流域径流输沙演变与降雨及降雨侵蚀力的关系[J].水土保持研究,2023,30(04):90.[doi:10.13869/j.cnki.rswc.2023.04.025.]
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备注/Memo
收稿日期:2022-07-19 修回日期:2022-09-23
资助项目:中国科学院“西部之光”人才培养引进计划(XAB2022YW03); 国家自然科学基金面上项目(42271042)
第一作者:于闰豪(1998—),男,河南临颍县人,硕士研究生,研究方向为土壤侵蚀与水文模拟。E-mail:yurunhao@qq.com
通信作者:杨艳芬(1984—),女,宁夏银川人,博士,副研究员,主要从事土壤侵蚀与水文模拟研究。E-mail:yfyang@ms.iswc.ac.cn