]> 2026-04-22T08:07:31+00:00 Case study:Herinrichting beekdal Tongelreep 500 en Approved 0.75 0.5 - 2 m 0.0066 Less than 0.001 Dood hout Grind bedden Yes Yes No Improvement Yes Macrophytes,Yes,Yes,Yes,Yes,No,Improvement Fish,Yes,Yes,Yes,Yes,No,Improvement Macrophytes Fish Yes STOWA Western Plains Yes No Yes false Yes Yes No Improvement Yes Width & depth variation,Yes,Yes,Yes,Yes,No,Improvement Flow velocities,Yes,Yes,Yes,Yes,No,Improvement Width & depth variation Flow velocities Yes Tongelreepdoorakkerland.jpg No Waterschap De Dommel These measurements show the potential of stimulating the origination of gravel beds. Actively introducing gravel would be a technological approach, which may be undesirable. If gravel is already naturally present in the stream, extra gravel may be added, but otherwise, a Building with Nature approach is considered more desirable. Flow velocity variation can also be stimulated by main channel mowing or by introducing dead wood. When there is insufficient space for these natural measures, (as is the case for the Tongelreep), introducing gravel is an option. Providing sufficient shade over the gravel area is important. 51.397904901172,5.4808985905872 Ineke STOWA Barten 0.1 - 1.0 m³/s Dood hout, Grind bedden,, Bouwen met Natuur,,, Waterschap De Dommel Water depth, flow velocity and substrate cover were measured four times in 2016/2017. In addition, the position of the gravel beds was measured twice per year in the years 2015, 2016 and 2017. These measurements also revealed limited sedimentation, which was 80% gravel in late 2017. The gravel areas moved by on average 1.0m (+/- 0.3m), indicating that they mostly remained in place over a five year period. After the introduction of gravel beds, total species abundance and the number of species typical for an R5-type stream both increased significantly. Source: http://edepot.wur.nl/468347 Bouwen met Natuur 24479 Yes Yes No Improvement No change Yes No Nutrient concentrations,Yes,Yes,Yes,Yes,No,Improvement PH,Yes,Yes,Yes,No,No,No change Salinity,Yes,Yes,Yes,Yes,No,No change Oxygen balance,Yes,Yes,Yes,Yes,No,No change Temperature,Yes,Yes,Yes,Yes,No,No change Specific synthetic pollutants,Yes,Yes,No,Yes,No,Improvement Nutrient concentrations PH Salinity Oxygen balance Temperature Specific synthetic pollutants Yes No 1 - 10 k€ Waterschap De Dommel 2007-01-01Z 2454101.5 Complete The Tongelreep enters the Netherlands at the Achelse Kluis and then flows into the river Dommel near Eindhoven. The Tongelreep is part of the Dommel catchment. Since the 1990s, stream restoration measures were taken to allow the river more space to meander after it had previously, in the past century, been straightened for a faster discharges. As a result of this straightening, parts of woodland, moors and wetlands were at risk of drying out. In addition to these traditional restoration measures, Building with Nature measure were implemented. The Tongelreep is the only Dutch stream where, for building with Nature purposes, gravel beds were introduced near Aalst in addition to dead wood patches. This was done to enrich the stream flora and fauna. Herinrichting beekdal Tongelreep herinrichting beekdal tongelreep http://rhk.maps.arcgis.com/apps/MapSeries/index.html?appid=b9cf56c10d7f4d1db891cecec33d1d96 No 1700 Maas Meuse Dommel dommel Netherlands - Natuurbeschermingswet Valkenswaard valkenswaard 1800 1000 - 10000 km² 77 Less than 100 m De Dommel NL_99_6_BO_BE_2 Environmental flows and water resources Fisheries Habitat and biodiversity Hydromorphology R5 NL27_T_1_2 2014-01-01Z 2456658.5 2007-01-01Z 2454101.5 2019-07-30T14:15:12Z 2458695.0938889 2021-04-01T13:03:55Z 2459306.0443866 Herinrichting beekdal Tongelreep 500 1 plainlist 5 [[Category:Case study]] [[Project title::!Herinrichting beekdal Tongelreep]] [[Subcatchment title::De Dommel]] Herinrichting beekdal Tongelreep# QUERY7c8bf2542729fdbd58f03043609583f5 500 [2,"smw_unitnotallowed","-0.28"] Herinrichting beekdal Tongelreep# ERR9bbcd2c446f0c9000e4539dfb1eff7e7