Preliminary Discussion on Channel Alignment of the Lower Reaches of the Yellow River
There are great distances between the embankments from Baihezhen to Taochengpu in the Yellow River where historically erosion and deposition of the channel had been changed rapidly and the river is in the wandering and varying regime.After years of improvement,the river regime has been basically controlled on the whole and the channel has gradually become stabilized.Under these conditions,in order to promote the ecological protection of the Yellow River and the development of floodplain areas,upgrade the level of river management,the riv-er was simply divided into channel and floodplain.This paper proposed the concept of channel alignment for the first time,provided the defi-nition and the principle of alignment setting,emphasized that establishing the channel alignment should take the safety of flood control as the premise,explained setting methods and on-site marking methods and also analyzed the functions of channel alignment.
channel alignmentriver improvementlower reaches of Yellow River
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