]> 2026-04-09T04:21:31+00:00 Case study:Marswetering 500 en Draft Less than 0.001 Waterschep Drents Overijsselse Delta Central Plains Yes No Yes true No Although the dead wood method yielded no results in this particular location, it has since been applied in various other projects and is generally well received by society. An important lesson is that a sufficiently high discharge is required for this measure to function. Projects such as this one can be complicated by a shortage of available wood and problems cleaning out debris. It has also been noticed that willow wood is less suitable for this measure, as it degrades quickly and is likely to sprout. 52.496774441773,6.3033017927702 Sander Waterschep Drents Overijsselse Delta Verheijen 0.1 - 1.0 m³/s ,, ,,, The effect of the measures on the abundance of macroinvertebrate and fish has been monitored. The dead wood experiments did not yield any favourable results, probably because the stream has a rather low discharge and is therefore less suitable for this type of measures. Vegetation development is monitored by FLORON. Macroinvertebrates are monitored at 3-4 locations per stream as part of a regional project in the Marswetering, Overijssels Kanaal and Beentjesgraven. The overall ecological quality ratios of the stream has improved. 26186 Complete The Marswetering is a slow flowing river in a region that is characterized by agriculture, woodland and rural estates. Its natural hydrological regime has been altered by withdrawals for agricultural purposes and by water level regulating structures. As a consequence, development of vegetation, macroinvertebrates and fish have been held back. The water authority has made an attempt to create more variation in morphology and flow structure of the Marswetering by introducing dead wood in the stream. The wood was introduced at five locations below the water line to create narrower stretches in the stream. Additionally, the banks were divided into a green and a blue zone. In the blue zone, vegetation was regularly removed to ensure flow continuity. In the green zone, vegetation is removed less regulaly and in a way that contributes to a varied flow structure. Fish passages have also been created in the Marswetering. Further efforts are planned to broaden the waterway and recreate meanders. Marswetering marswetering No Rijndelta Rijn Vecht vecht Marswetering marswetering 1000 - 10000 km² 100 - 200 m Vecht (Overijssel) NL36_OWM_014 Environmental flows and water resources Habitat and biodiversity Hydromorphology Monitoring Water quality R5 NL04_MARS-WETERING Marswetering 2020-12-03T13:05:18Z 2459187.0453472 2021-01-26T14:45:26Z 2459241.1148843 Marswetering 500 1 plainlist 5 [[Category:Case study]] [[Project title::!Marswetering]] [[Subcatchment title::Vecht (Overijssel)]] Marswetering# QUERY638241423f72f96672799b841bc9c8ac