Riverbank erosion rates prediction incorporating soil erodibility and soil properties relationship: Bernam River, Malaysia case study

摘要

Riverbank erosion and lateral migration changes are very complex and complicated processes. Although it is obvious that all rivers will experience these phenomena, it may be less obvious that there are consistent underlying relationships between different riverbank erosion and lateral migration with parameters such as hydraulic and hydrodynamic characteristics, river bank geometry, soil properties, grain or flow resistance, channel characteristics and others such as vegetation condition. Relationship between soil erodibility and the riverbank erosion rates is considered as one of the primary processes concerned in the development of channel migration. This research investigates riverbank erosion in the Bernam River, Malaysia. Field monitoring data was collected to obtain sufficient amount of information for variables of riverbank erosion factors i.e. channel geometry, hydraulics characteristics and erodibility in order to explain the controls on temporal changes in riverbank erosion rates.