The USSR territory subdivision according to channel formation conditions and channel types

Abstract

The paper introduces schemes of the USSR regionalisation according to channel process factors. Relative length of channels of different types is calculated for groups of regions which differ in geological and geomorphic conditions of channel deformations development and also for sub-latitudinal zones which differ in channel-forming discharges character. Channel types regional distribution appeared to be closely related to tectonic activity and bedrock lithology. Anastomosing channels or various free meanders are controlled by channel-forming discharge occurence.