渭河水沙条件变化对河床冲淤的影响分析

Effect of Water and Sediment Variation on Erosion and Deposition of Weihe River Bed

通过渭河下游河道历史及现代的演变规律 ,分析水沙条件、水库运用变化对渭河下游、潼关高程的影响。1986年以来 ,渭河下游淤积加剧主要是由于不利的水沙组合所造成 ,因此应加大渭河主要产沙区及河道的治理力度 ,以缓解渭河下游的淤积发展局面。

Based on the historical material and data in nowadays in the Lower Weihe River, the effect of water\|sediment condition and reservoir operation variation on the Lower Weihe River and Tongguan elevation variation are analyzed. Since 1986, the deposition in the Lower Weihe River has been aggravated because of unfavorable combination of water and sediment conditions. So we should make every effort to control main regions of sediment yielding in the Weihe River basin in order to slow up deposition development in the Lower Weihe River.