Monitoring of selected hydro-morphological elements on natural rivers in Slovakia depending on river scale

Sedimentary processes in aquatic environments are very important parts of monitoring and describing the hydrological regime. In our study, we are dealing partially with analyses of hydro-morphological processes in natural rivers. Natural river is described by almost complete absence of anthropogenic pressure, in this case, the results of our monitoring are used to evaluate the ecological status of the water bodies in accordance with Water framework directive. We identify changes in river channel from historical point of view (f.e. shortening), monitor bedforms (bars, islands, riffles etc.), sediment types (bedrock, boulders, sand, etc.), however, dealing with the quantification of the sediment regime is out of our scope. According to the river scale, we use partly different measurement techniques, and in case of different river types, some elements could be irrelevant for some of them. In this study, we explain the type specific elements for the selected river types.