Main Controlling Factors of the Yellow River Channel and Its Derived Geological Issues
In the formation and evolution of the Yellow River,long underestimated but extremely important records are the form and location of the river channel,as well as the interdependence between riparian geological bodies.The study shows that the Yellow River channel gener-ally presents three extension styles of long line extension,short bend and zigzag swing.Regional tectonic evolution,faulting tectonism and other internal dynamic geological processes are the main controlling factors for the formation and evolution of the Yellow River channel.The Qinghai-Tibet Plateau,the margin of the Ordos block and the North China Plain are three unique tectono-geomorphic units formed by regional tectonic evolution,and the tectonic factors in the basin have respectively created three different geometric patterns of river channel combina-tions,namely,inverted Z-shaped,Ω-shaped and wide V-shaped.During the formation and evolution of the three types of river channel,their own unique issues in geology,engineering,development and protection are derived,according to which the development and management suggestions are put forward.
river extension stylesriver control factorsderived engineering geological issuesgovernance recommendationsYellow River
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