Response of sediment delivery ratio to water-sediment and riverbed boundary conditions during flood events in the lower yellow river since 2000
文献类型：期刊论文
| 作者 | Zhang, Xueqin3,4; Zhang, Min1,2; Zhang, Chunjin1,2; Zhang, Xiaohua1,2; Sun, Zanying1,2 |
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2026-03-07 |
| 卷号 | 16期号:1页码:12485 |
| 关键词 | Sediment transport Sediment delivery ratio Water-sediment conditions Riverbed boundary Flood events Lower Yellow River |
| ISSN号 | 2045-2322 |
| DOI | 10.1038/s41598-026-42616-7 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | The sediment delivery ratio is greatly affected by the water-sediment and the riverbed boundary, which represent the river's capacity to transport sediment under specified conditions. This study examines the response of the sediment delivery ratio to water-sediment and riverbed boundary conditions in the Lower Yellow River (LYR) since the operation of the Xiaolangdi Reservoir began. It evaluates the spatial-temporal variations of water-sediment and riverbed boundaries based on hydrological data and topographic data from 2000 to 2023. Based on the sediment transport rate equation, a theoretical equation for the sediment delivery ratio during flood events has been developed, thoroughly considering the effects of riverbed boundary conditions, including median particle size of bed sediment, river gradient, and width-to-depth ratio. The results show that the sediment delivery ratio negatively correlates with the incoming sediment coefficient, the median particle size of bed sediment, and the width-to-depth ratio. In contrast, it positively correlates with the water load variation coefficient and river gradient. In comparison to solely accounting for water and sediment conditions, incorporating the riverbed boundary into the theoretical equation results in a more precise alignment with the measured sediment delivery ratio data. This indicates that the riverbed boundary is a crucial factor influencing the sediment delivery ratio. Under the current boundary conditions, the Aishan to Lijin reach has the highest sediment transport capacity. To improve the sediment transport capacity of the Tiexie to Lijin reach, it is recommended to narrow the river width upstream of Gaocun and increase the width-to-depth ratio. The findings of this study provide essential scientific insights into the sediment transport capacity of alluvial rivers subjected to variations in water-sediment and riverbed boundary conditions, thereby offering important references for hydrological engineering and river management practices. |
| URL标识 | 查看原文 |
| WOS关键词 | SUSPENDED SEDIMENT ; DAM ; RESERVOIRS ; TRANSPORT ; REACHES |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:001743115700005 |
| 出版者 | NATURE PORTFOLIO |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/221585]  |
| 专题 | 陆地表层格局与模拟院重点实验室_外文论文 |
| 通讯作者 | Zhang, Min |
| 作者单位 | 1.Minist Water Resources, Key Lab Lower Yellow River Channel & Estuary Regul, Zhengzhou 450003, Peoples R China 2.Yellow River Conservancy Commiss, Yellow River Inst Hydraul Res, Zhengzhou 450003, Peoples R China; 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Zhang, Xueqin,Zhang, Min,Zhang, Chunjin,et al. Response of sediment delivery ratio to water-sediment and riverbed boundary conditions during flood events in the lower yellow river since 2000[J]. SCIENTIFIC REPORTS,2026,16(1):12485. |
| APA | Zhang, Xueqin,Zhang, Min,Zhang, Chunjin,Zhang, Xiaohua,&Sun, Zanying.(2026).Response of sediment delivery ratio to water-sediment and riverbed boundary conditions during flood events in the lower yellow river since 2000.SCIENTIFIC REPORTS,16(1),12485. |
| MLA | Zhang, Xueqin,et al."Response of sediment delivery ratio to water-sediment and riverbed boundary conditions during flood events in the lower yellow river since 2000".SCIENTIFIC REPORTS 16.1(2026):12485. |
入库方式： OAI收割
来源：地理科学与资源研究所
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