Morphological Response of Channelized, Sinuous Gravel?Bed Rivers to Sediment Replenishment

Anthropogenic alterations of sediment supply and transport processes may impact the ecological state riverscapes threaten infrastructure along river. Sediment replenishment is one restoration method that employed in channels impacted by deficit. We performed flume experiments to investigate channel bed response a channelized, sinuous gravel-bed river periodic episodic replenishment. The grain size distribution replenished material, flow discharge, level were varied long-term steady-state experiments. In addition, routing single pulse was investigated. included intensified relocation transversal leveling. discharge thereby exerted strongest control over response, whereas influence material minor. A simple habitat analysis using grayling as example species revealed retained within thus providing episodically renewed clean gravel patches increase spawning availability. However, general shortage shallow habitats for fry juveniles channelized rivers persisted regardless Overall, illustrate provide valuable Accompanying measures such widening careful consideration other remaining stressors are strongly recommended benefits further.