Variations in the bed load granulometry in point bars of the mountain rivers and controlling factors

Abstract

Long-term stationary observations of bed-forming sediments dynamics in point bars of mountain rivers revealed a pattern in the granulometric differentiation along the river and at various elements of the point bar topography; the differentiation appeared to depend on the flow regime, which gives an insight into the processes of the channel load transport and permits to estimate rates of erosion and alluviation.