CHANNEL SHRINKAGE AND ITS INSTABILITY IN THE LOWER YELLOW RIVER  

作　　者：Jianguo CHEN Wenhao ZHOU Anjun DENG 

机构地区：[1]Prof., Deputy Director, Department of Sedimentation, China Institute of Water Resources and Hydropower , Research, Beijing, China, [2]Prof., China Institute of Water Resources and Hydropower Research, Beijing, China [3]Engineer, China Institute of Water Resources and Hydropower Research, Beijing, China

出　　处：《International Journal of Sediment Research》2006年第1期13-23,共11页国际泥沙研究（英文版）

基　　金：Key Project of National Natural Science Foundation of China (No.50239040), Key Project of 10th Five-Year-Plan of China (No.2004BA610A-03).

摘　　要：From the mid 1980s through the late 1990s, the channel of the lower Yellow River experienced serious shrinkage, which has decreased the flood conveyance of the channel and the sediment carrying capacity of the flow, raised the water levels of floods, and, thus, severely threatened the safety of flood control along the river. The completion of Xiaolangdi Dam in 1999 could help mitigate the channel shrinkage problem, but the situation has not changed yet. This paper analyses the characteristics, mechanisms, and conditions resulting in channel shrinkage, points out channel instabilities, and puts forward approaches of channel rehabilitation.From the mid 1980s through the late 1990s, the channel of the lower Yellow River experienced serious shrinkage, which has decreased the flood conveyance of the channel and the sediment carrying capacity of the flow, raised the water levels of floods, and, thus, severely threatened the safety of flood control along the river. The completion of Xiaolangdi Dam in 1999 could help mitigate the channel shrinkage problem, but the situation has not changed yet. This paper analyses the characteristics, mechanisms, and conditions resulting in channel shrinkage, points out channel instabilities, and puts forward approaches of channel rehabilitation.

关 键 词：Channel shrinkage Main channel Hydrological condition Regulation of water andsediment 

分 类 号：TV12[水利工程—水文学及水资源]