黄河龙羊峡水库运行对下游贵德站水沙特性的影响研究  

Study on the Influence of the Operation of Longyangxia Reservoir on the Water and Sediment Characteristics at Guide Station in the Lower Reaches of the Yellow River

作　　者：刘娜[1] 程龙 李时 吴腾[2] 冯兴国[2] Liu Na;Cheng Long;Li Shi;Wu Teng;Feng Xingguo(Northwest Engineering Corporation Limited,Power China,Xi'an 710065,China;College of Harbor,Coastal and Offshore Engineering,Hohai University,Nanjing 210024,China)

机构地区：[1]中国电建集团西北勘测设计研究院有限公司,西安710065 [2]河海大学港口海岸与近海工程学院,南京210024

出　　处：《西北水电》2025年第1期28-34,共7页Northwest Hydropower

基　　金：国家重点研发计划(2023YFC3209302)。

摘　　要：为推进黄河流域高质量发展,掌握黄河流域水利水电工程前后的水沙特性至关重要。以龙羊峡水库上游唐乃亥站和下游贵德站的水沙资料为基础,采用曼-肯德尔(Mann-Kenddall)检验法、滑动平均差检测法和小波分析法研究了龙羊峡水库运行对下游贵德站的水沙特性影响。结果表明:下游贵德站年均流量在1987年之前呈增长趋势,之后为减小趋势,突变点在1986年,主要震荡周期为22 a;输沙量在1990年之前呈增长趋势,之后为减小趋势,主要震荡周期为28 a;龙羊峡水库的建成运行降低了下游的年均流量,并明显减少了下游年输沙量。综合而言,龙羊峡水库的建立有利于黄河上游水土保持,有助于库区下游流量与输沙量的稳定。通过对比龙羊峡水库对下游泥沙和水流变化的影响,发现泥沙相比于水流受到龙羊峡水库的影响具有滞后性。In order to promote the high-quality development of the Yellow River Basin,it is crucial to master the water and sediment characteristics before and after the construction of water conservancy and hydropower projects in the Yellow River Basin.Based on the water and sediment data of the Tangnaihai Station upstream of the Longyangxia Reservoir and the Guide Station downstream,this paper uses the Mann-Kendall test method,the moving average difference detection method and the wavelet analysis method to study the influence of the operation of the Longyangxia Reservoir on the water and sediment characteristics at the Guide Station in the lower reaches.The results show that the annual average flow at the Guide Station in the lower reaches showed an increasing trend before 1987 and a decreasing trend after that,with the mutation point in 1986,and the main oscillation period was 22 years;the sediment transport showed an increasing trend before 1990 and a decreasing trend after that,with the main oscillation period being 28 years.The construction and operation of the Longyangxia Reservoir have reduced the annual average flow in the lower reaches and significantly decreased the annual sediment transport in the lower reaches.Overall,the establishment of the Longyangxia Reservoir is beneficial to the soil and water conservation in the upper reaches of the Yellow River and helps to stabilize the flow and sediment transport downstream of the reservoir area.By comparing the influence of the Longyangxia Reservoir on the changes in sediment and water flow in the lower reaches,it is found that sediment is more affected by the Longyangxia Reservoir with a lag compared to water flow.

关 键 词：龙羊峡水库 m-k检验 滑动平均差检测法 小波分析法 

分 类 号：TV143.1[水利工程—水力学及河流动力学]