ABSTRACT
The fluvial system is a process-response system where the processes are involved in the movement, storage, and transformation of energy and matter between system elements. It includes the morphologic component of fluvial forms and the cascading component of water and sediment as fluvial processes. The basic methodology approach of morphology analysis in fluvial research is fluvial- geomorphological field mapping. Sketches and maps of fluvial landscapes and landforms have been and are fundamental methods to analyse and visualise surface and near-surface features. Bed sediment analysis is frequently used, for example, in fluvial-geomorphic research or water management. Information on bed-material is needed for a variety of purposes, for example, streambed monitoring for detecting watershed impacts, analysing stream habitat, computations of flow hydraulics, etc. Volumetric samples extract a pre-defined volume of sediment from the bed. Volumetric samples are three-dimensional and may be taken from various strata of the sediment column.
