Global Patterns and Changes of River Backwater Points over Two Decades
文献类型：期刊论文
| 作者 | Yu, Hao4,5,6; Fu, Dongjie4,5,6; Su, Fenzhen4,5,6; Tang, Jiasheng4,5,6; Yuan, Ze5,6; Lyne, Vincent3; Xiao, Ye2; Kang, Lu1 |
| 刊名 | REMOTE SENSING
 |
| 出版日期 | 2025-03-01 |
| 卷号 | 17期号:5页码:886 |
| 关键词 | backwater effect backwater points backwater length backwater zone river system river mouth |
| DOI | 10.3390/rs17050886 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | The study of river backwater points (bpts) is pivotal for understanding the interactions between riverine and coastal systems, including brackish water dynamics, coastal flooding, and ecosystem processes. Despite extensive research, the global spatio-temporal dynamics of bpts, particularly in rivers with minimal human intervention, remains underexplored. This study investigates backwater lengths and shifts in 18 major global rivers (discharge > 5000 m(3)/s) from 2000 to 2020, uncovering significant hydrological and geographical patterns. In 2000, backwater lengths ranged from 113.16 km (Salween) to 828.75 km (Amur), with bpts consistently positioned upstream of apex points. By 2020, all rivers exhibited upstream retreats of their bpts, ranging from 10.43 km (Salween) to 132.51 km (Amazon), and retreat ratios typically falling between 0% and 20%. The Salween, Niger (60%), and Irrawaddy (38%) demonstrated the most significant proportional shifts. Geographical transitions of bpts varied widely: rivers such as the Ganges and Amur shifted toward urbanized areas, while the Amazon and Orinoco remained in remote regions, reflecting the differential impact of human activity and natural processes. There was a general correlation between backwater length and river discharge, with exceptions like the Amur indicating the influence of other factors such as geomorphic settings and sediment dynamics. While sea-level rise (0.019-0.115 m) affected estuarine conditions, it showed no consistent relationship with bpt retreat at the global scale, but a regional-scale analysis indicates that sea-level rise can lead to the retreat of bpts for those rivers with macro-tidal environments and high sediment yields with less human intervention, suggesting localized interactions dominate backwater dynamics. These findings highlight the complex interplay of environmental and anthropogenic pressures on global river systems. They provide a critical foundation for advancing hydrological modeling, improving river management strategies, and understanding the broader implications of spatio-temporal bpt dynamics under changing climatic and human influences. |
| URL标识 | 查看原文 |
| WOS关键词 | EL-NINO ; WATER ; ELEVATION ; IMPACTS ; TRANSITION ; EVOLUTION ; DYNAMICS ; TRENDS ; AMAZON ; BRAZIL |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology |
| 语种 | 英语 |
| WOS记录号 | WOS:001442643400001 |
| 出版者 | MDPI |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/213288]  |
| 专题 | 资源与环境信息系统国家重点实验室_外文论文 |
| 通讯作者 | Su, Fenzhen |
| 作者单位 | 1.China Land Surveying & Planning Inst, Beijing 100035, Peoples R China 2.Peking Univ, Coll Urban & Environm Sci, Beijing 100871, Peoples R China; 3.Univ Tasmania, IMAS Hobart, Hobart, Tas 7004, Australia; 4.Nanjing Univ, Collaborat Innovat Ctr South China Sea Studies, Nanjing 210093, Peoples R China; 5.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China; 6.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Yu, Hao,Fu, Dongjie,Su, Fenzhen,et al. Global Patterns and Changes of River Backwater Points over Two Decades[J]. REMOTE SENSING,2025,17(5):886. |
| APA | Yu, Hao.,Fu, Dongjie.,Su, Fenzhen.,Tang, Jiasheng.,Yuan, Ze.,...&Kang, Lu.(2025).Global Patterns and Changes of River Backwater Points over Two Decades.REMOTE SENSING,17(5),886. |
| MLA | Yu, Hao,et al."Global Patterns and Changes of River Backwater Points over Two Decades".REMOTE SENSING 17.5(2025):886. |
入库方式： OAI收割
来源：地理科学与资源研究所
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