摘要
为揭示东北寒区中尺度流域输沙特性,选取阿伦河流域为研究区,基于自研发的物理性分布式水文模型,耦合悬移质和推移质计算模块,构建耦合输沙的降雨-径流过程分布式水文模型,通过对控制案例计算结果与含沙量采样粒径级配的比较,检验模型的实用性。研究区2016年输沙过程计算结果表明:模拟结果的均方根误差(RMSE)小于0.1,输沙过程受流量过程的支配;输沙主要为悬移质,最大洪峰期间,研究区出口断面悬移质占输沙量的90%以上,常流条件下,悬移质占输沙量的80%以上;冬季各月输沙量对年输沙的贡献率小于0.15%;6月、7月、9月和10月的月输沙量对年输沙的贡献率大于15%。研究结果为东北寒区水沙耦合运动过程研究提供基础数据。
To reveal the characteristics of the sediment transport for the medium-scale basins in the cold region of the northeast China,a suspended and bedload sediment transport model,coupled with a self-developed physically-based distributed hydrological model for calculating the rainfall and runoff coupling process,was constructed in the Alun River Basin.The model was validated by comparing the sampling survey results of the particle size distribution and the calculation results in a control case,and was used to calculate the rainfall-runoff combined with sediment transport process in 2016.The results indicate that the root mean square error(RMSE)in model calibration is mostly smaller than 0.1.The sediment transport process in the study area is dominated by the runoff process and suspended sediment is the primary transport form,with over 90%of the total sediment transport during the flood period in 2016,and over 80%during the period of normal water level across the outlet of the study area.The monthly sediment discharge in winter accounts for less than 0.15%of the annual total value;while the contribution of the monthly sediment transport in June,July,September and October to the annual total value is larger than 15%in the rainy season.The results can provide the basis for the research on flow and sediment coupling processes in the cold region of the northeast China.
作者
黄金柏
王庆明
王斌
温佳伟
HUANG Jin-bai;WANG Qing-ming;WANG Bin;WEN Jia-wei(School of Hydraulic Science and Engineering,Yangzhou University,Yangzhou 225009,China;China Institute of Water Resources and Hydropower Research,Beijing 100038,China;School of Water Conservancy and Civil Engineering,Northeast Agricultural University,Harbin 150030,China;School of Information Engineering,Yangzhou University,Yangzhou 225127,China)
出处
《泥沙研究》
北大核心
2025年第5期25-33,共9页
Journal of Sediment Research
基金
中国水利水电科学研究院流域水循环模拟与调控国家重点实验室开放研究基金项目(IWHR-SKL-KF202309)
国家自然科学基金项目(41271046)。
关键词
阿伦河流域
物理性分布式水文模型
降雨-径流
泥沙输移
推移质
悬移质
Alun River Basin
physically-based distributed hydrological model
rainfall-runoff
sediment transport
bedload
suspended sediment
