Author(s): Chen Dong; Tang Chun-Ling; Cao Wen-Hong; Hu Chun-Hong
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Keywords: Shrinkage; River channel; Dominant discharge; Channelformation; Threshold
Abstract: The development and utilization of water resources in a river basin become more and more intensive, leading to hydrological changes and river channel shrinkage. Based on the principle of geomorphic thresholds and analyses of large amounts of field data, the author set up a new conceptual model of channel shrinkage. The determination of the dominant discharge of channel formation under shrinkage conditions has been presented and the relationship of dominant discharge with channel morphology under shrinkage conditions applied. The external threshold of the channel shrinkage in the lower Yellow River is also determined with the mathematic model.
Year: 2001