Fluvial geomorphology, High gradient stream, Stream analysis, Macrogranulometry, Channel-reach, Bankfull channel, Outer Western Carpathiens

This paper deals with the research of the high gradient streams located in Moravskoslezské Beskydy Mts., Podbeskydská pahorkatina Upland and Vsetínské vrchy Mts. There are evaluated channel reaches by several parameters (e.g. bedrock, bed formations, channel confinement by valley walls, channel gradient, influence of vegetation etc.) within selected mountain streams. It is possible to reveal dependence of evaluated parameters by using statistical methods. This allows us to recognize processes and forms, which influence morphological and hydraulic character of high gradient channels. Further, in this study is described a way of estimating intensity of bedload sediment transport during floods.