Sediment run-off, channel-forming discharges and morphodynamic types of river channels in the catchment area of the Oka river

Abstract

Data of silt load and unit sediment discharge within the Oka basin are represented here. The scheme of regionalization based on this data is given. It is interlinked with the soil-erosion hazard distribution. From data of sediment discharge the power "m" in the equation for channel-forming discharge has been calculated. By the condition of their passage the scheme of zonation of the basin was compiled. All schemes were juxtaposed with analogous schemes for the basin of the Don. The distribution of different morphodynamic channel types and their correlation with geological-geomorphologic pattern of basin are under consideration.