Bed load management
Bed load management encompasses all water management measures on a river that are intended to improve the bed load balance. Debris is the term used to describe solids that are carried along by the water. Have errors at the load balance of a stream erosion of the riverbed ( river bed ) and thus a depression result. In some places deep pools are created , and the groundwater level is also lowered. Due to the lowering of the groundwater level, alluvial forests can recede along the flowing water.
For these reasons, a dynamic bed equilibrium is aimed for in terms of bed load management. This means that the delivery and removal of bed load (so-called bed load operation ) is more or less balanced. The bed of the waterway maintains its altitude permanently, and debris continues to be transported to the valley with the help of the runoff . In addition, shipping traffic is made permanent and the maintenance effort for the water is reduced.
activities
Various measures can be used to improve the bed load balance of a river.
- Renaturation of the straightened or expanded river
- Addition of bed load (such as at the Iffezheim am Rhein barrage)
- Improvement of bed load passage on river structures (weir and dam systems)
- Provision of areas for river development ( retention area or gravel banks )
- Installation of groynes ( steering groynes ) or tail units
- Stabilization of the river bed
Web links
- Information on bed load management from the Bavarian State Office for the Environment
Individual evidence
- ↑ Wasser- und Schifffahrtsdirektion Südwest (PDF file; 0.3 MB) ( Memento of the original from March 4, 2016 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
