Review of sediment yield, transportation, and trap in reservoirs in Lancang-Mekong River basin

被引：0
|
作者：
Hou S. [1 ]
Tian F. [1 ]
Ni G. [1 ]
机构：
[1] State Key Laboratory of Hydro-Science and Engineering, Tsinghua University, Beijing
来源：
Shuikexue Jinzhan/Advances in Water Science | 2020年 / 31卷 / 04期
基金：
国家重点研发计划; 中国国家自然科学基金;
关键词：
Lancang-Mekong River; Sediment transportation; Sediment trap in reservoirs; Sediment yield;
D O I：
10.14042/j.cnki.32.1309.2020.04.016
中图分类号：
学科分类号：
摘要：
The Lancang-Mekong River is one of the largest transboundary river shared by China and Southeast Asian countries. In recent years, the sediment issue in this large river has received extensive attention due to nutrient-rich sediment decreasing which is critical to ecological health, aquatic habitats, shipping, coastal erosion and agricultural and fisheries production. A wide range of studies on sediment yield, transportation and trapped by reservoirs are summarized. The main controversial topics include where the most sediment comes from, how to explain the abnormal relationship among suspended sediment loads observed along the mainstream, and the quantification of effect of human activities on sediment load change. There are five main issues unsolved, including unreliable observed sediment data in Lower Mekong River, weak basis of total sediment load of 160×106 t/a, low spatiotemporal resolution in model simulation, insufficient study of the land use change impacts in recent decades and inadequate research on sediment except for suspended sediment. Several possible ways to overcome these difficulties are also discussed. © 2020, Editorial Board of Advances in Water Science. All right reserved.
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页码：619 / 628
页数：9
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