人民黄河2025，Vol.47Issue(12)：60-64,76,6.DOI:10.3969/j.issn.1000-1379.2025.12.010
宁蒙河段冲淤对黄河上中游水库联合排沙的响应及输沙规律
Sediment Transport Patterns and Response of Erosion and Deposition in the Ningxia-Inner Mongolia Reach to the Joint Reservoir Sediment Flushing in the Upper and Middle Reaches of the Yellow River
摘要
Abstract
This study focused on analyzing the sediment discharge effect of the Qingtongxia and Haibowan reservoirs during the joint sediment flushing period in the upper and middle reaches of the Yellow River from 2023 to 2024,as well as the erosion and deposition characteristics of the Ningxia-Inner Mongolia reach.Additionally,the sediment transport patterns in this reach were investigated.The results indicate that during the joint sediment flushing period,the sediment discharge ratios of both the Qingtongxia and Haibowan reservoirs exceed 150%effec-tively,and their storage capacities are effectively restored.Rapid deposition occurs in the Qingtongxia-Shizuishan and Bayangaole-Toudaoguai sections downstream of the reservoirs,with the deposited sediment being largely eroded during the non-flood season of the same year or the following year.Furthermore,relationships are established between the sediment discharge ratio of the Qingtongxia-Shizuishan section during the flushing period at Qingtongxia Reservoir and both the proportion of scoured sediment from the reservoir area in the outgoing sediment and the sediment coefficient of the flushing flood.It is also identified that when the sediment concentration at the outlet of Haibowan Reservoir ex-ceeds 4 kg/m3,the Bayangaole-Baotou section has changed from erosion to siltation.关键词
水库排沙/泥沙冲淤/青铜峡水库/海勃湾水库/宁蒙河段Key words
reservoir sediment flushing/sediment erosion and deposition/Qingtongxia Reservoir/Haibowan Reservoir/Ningxia-Inner Mon-golia reach分类
天文与地球科学引用本文复制引用
李彬,任智慧,郑艳爽,张晓华..宁蒙河段冲淤对黄河上中游水库联合排沙的响应及输沙规律[J].人民黄河,2025,47(12):60-64,76,6.基金项目
国家重点研发计划项目(2023YFC3206702) （2023YFC3206702）
水利部重大科技项目(SKS-20222061) （SKS-20222061）
