Case study:Reest: Difference between revisions
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|Name of parent multi-site project=Building with nature in streams | |Name of parent multi-site project=Building with nature in streams | ||
|Multi-site=No | |Multi-site=No | ||
|Project summary=Stream restoration measures in the Reest aim to restore the hydrological conditions in the stream valley. The goal is to decrease the drainage capacity of the stream, leading to higher minimum groundwater levels and increased seepage | |Project summary=The Reest is a slow-flowing stream on a peat substrate that meanders over its full length, which is quite uncommon for Dutch streams. Stream restoration measures in the Reest aim to restore the hydrological conditions in the stream valley. The goal is to decrease the drainage capacity of the stream, leading to higher minimum groundwater levels in summer and increased seepage into the valley. This is supposed to improve the ecological potential for aquatic plants, invertebrates and fish. The surrounding valley should become better suited to support wet grassland To this end, three 50-meter-long stretches have been lined with dead tree stubs. In addition, sand was deposited in the stream, raising the streambed by 50 cm. Finally, several barriers were created from tree trunks rocks. | ||
|Monitoring surveys and results=Extensive groundwater monitoring shows that the upstream groundwater level is rising, which was the intended effect of the measures taken. Locally, the stream is becoming significantly narrower due to vegetation growth in the treated areas. The measures have not been in effect long enough to draw conclusions about the effect on macroinvertebrates and fish. | |Monitoring surveys and results=Extensive groundwater monitoring shows that the upstream groundwater level is rising, which was the intended effect of the measures taken. Locally, the stream is becoming significantly narrower due to vegetation growth in the treated areas. The measures have not been in effect long enough to draw conclusions about the effect on macroinvertebrates and fish. | ||
|Lessons learn=Water board Drents Overijsselse Delta observes that it is important to plan and time maintenance well and to communicate well with water managers. Most notably, the developing vegetation caused the water to smell when water levels were high, so that weeds had to be cut along the entire stream. | |Lessons learn=Water board Drents Overijsselse Delta observes that it is important to plan and time maintenance well and to communicate well with water managers. Most notably, the developing vegetation caused the water to smell when water levels were high, so that weeds had to be cut along the entire stream. | ||
Revision as of 15:54, 1 December 2020
This case study is pending approval by a RiverWiki administrator.
Location: 52° 39' 59.74" N, 6° 18' 19.29" E
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Project overview
| Status | In progress |
|---|---|
| Project web site | |
| Themes | Environmental flows and water resources, Habitat and biodiversity, Hydromorphology, Monitoring |
| Country | Netherlands |
| Main contact forename | Sander |
| Main contact surname | Verheijen |
| Main contact user ID | |
| Contact organisation | Waterschap Drents Overijsselse Delta |
| Contact organisation web site | http://www.wdodelta.nl |
| Partner organisations | |
| Parent multi-site project | |
| This is a parent project encompassing the following projects |
No |
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Project summary
Edit project overview to modify the project summary.
The Reest is a slow-flowing stream on a peat substrate that meanders over its full length, which is quite uncommon for Dutch streams. Stream restoration measures in the Reest aim to restore the hydrological conditions in the stream valley. The goal is to decrease the drainage capacity of the stream, leading to higher minimum groundwater levels in summer and increased seepage into the valley. This is supposed to improve the ecological potential for aquatic plants, invertebrates and fish. The surrounding valley should become better suited to support wet grassland To this end, three 50-meter-long stretches have been lined with dead tree stubs. In addition, sand was deposited in the stream, raising the streambed by 50 cm. Finally, several barriers were created from tree trunks rocks.
Monitoring surveys and results
Edit project overview to modify the Monitoring survey and results.
Extensive groundwater monitoring shows that the upstream groundwater level is rising, which was the intended effect of the measures taken. Locally, the stream is becoming significantly narrower due to vegetation growth in the treated areas. The measures have not been in effect long enough to draw conclusions about the effect on macroinvertebrates and fish.
Lessons learnt
Edit project overview to modify the lessons learnt.
Water board Drents Overijsselse Delta observes that it is important to plan and time maintenance well and to communicate well with water managers. Most notably, the developing vegetation caused the water to smell when water levels were high, so that weeds had to be cut along the entire stream.
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Catchment and subcatchment
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Project background
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Reasons for river restoration
Measures
MonitoringHydromorphological quality elements
Biological quality elements
Physico-chemical quality elements
Any other monitoring, e.g. social, economic
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Supplementary InformationEdit Supplementary Information
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