Case study:Conservation strategies for forest and wild river in Gesaeuse: the River Enns restoration: Difference between revisions
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Revision as of 09:21, 9 April 2013
This case study is pending approval by a RiverWiki administrator.
Project overview
Status | Complete |
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Project web site | http://www.nationalpark.co.at/nationalpark/de/life.php?navid=102 |
Themes | Habitat and biodiversity, Hydromorphology, Land use management - forestry, Monitoring |
Country | Austria |
Main contact forename | Daniel |
Main contact surname | Kreiner |
Main contact user ID | |
Contact organisation | Gesäuse National Park |
Contact organisation web site | http://www.nationalpark.co.at |
Partner organisations | |
This is a parent project encompassing the following projects |
Conservation strategies for forest and wild river in Gesaeuse: the Johnsbach Beck restoration |
Project summary
The natural habitats in and beside the River Enns as well as the Johnsbach brook improved significantly with the implementation of this LIFE+ funded project, delivered by the National Park in the River Enns and its surrounding ecosystems. Restoration actions took place in multiple sites to re-establish an ecologically functioning wetland along the water courses and tributaries, with focus in connectivity (transversal and longitudinal) and landscape diversity.
Works in the rivers Enns and Palten included the creation of a new estuary in their confluence. Bank reinforcement structures along 500 m of the River Enns were replaced by typical riverine structures (i.e. gravel banks, bank erosion areas, piles of deadwood) which are developing. A new large pond for amphibians was completely cut-off from both rivers to prevent the immigration of fishes. Common frogs (“Rana temporaria”) and European toads (“Bufo bufo”) breed here.
Another target was the re-naturalisation of the floodplain forest for enhancing longitudinal connectivity of the river Enns. 306 ha of spruce dominated forests are now a natural mixed forest. Restoration of the River Enns and its surrounding ecosystems are also in line with a long-term strategy to protect special habitats and endangered species (i.e. Black woodpecker (“Dryocopus martius”), Eurasian pygmy owl (“Glaucidium passerinum) and the Rosalia longicorn (Rosalia alpina).
With focus on mountain pastures and species (i.e. black grouse (Tetrao tetrix), yellow bellied toad (“Bombina variegate”), etc.), the regulation of grazing intensity and access to drinking water in within the project area were also a priority.
A monitoring programme was established for the assessment of restoration outcomes. Increasing public awareness and dissemination of results are supported by public activities. For instance, specially trained wardens are to guide visitors and provide information on restoration outcomes in terms of habitats and landscape diversity and services. In addition, a thematic trail with interactive information facilities is in place.
The River Restoration Centre would like to thank Daniel Kreiner from the Gesäuse National Park for providing the information and photographs for this case study.
Monitoring surveys and results
Lessons learnt
Catchment and subcatchment
Site
Name | |
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WFD water body codes | |
WFD (national) typology | |
WFD water body name | |
Pre-project morphology | |
Reference morphology | |
Desired post project morphology | |
Heavily modified water body | No |
National/international site designation | |
Local/regional site designations | National Park, Natura 2000 |
Protected species present | Yes |
Invasive species present | Yes |
Species of interest | Alcedo atthis, Bombina variegata, Bonasa bonasia, Cottus gobio, Cypripedium calceolus, Dendrocopos leucotos, Eudontomyzon spp., Ficedula parva, Leuciscus souffia, Lutra lutra, Picoides tridactylus, Picus canus, Rosalia alpina, Tetrao tetrix tetrix, Tetrao urogallus |
Dominant hydrology | |
Dominant substrate | |
River corridor land use | |
Average bankfull channel width category | |
Average bankfull channel width (m) | |
Average bankfull channel depth category | |
Average bankfull channel depth (m) | |
Mean discharge category | |
Mean annual discharge (m3/s) | 201201 m³/s <br />201,000 l/s <br /> |
Average channel gradient category | |
Average channel gradient | |
Average unit stream power (W/m2) |
Project background
Reach length directly affected (m) | |
---|---|
Project started | 2005/08/01 |
Works started | |
Works completed | |
Project completed | 2011/02/01 |
Total cost category | |
Total cost (k€) | 2,363.206 2,363.206 k€ <br />2,363,206 € <br /> |
Benefit to cost ratio | |
Funding sources | EU LIFE III |
Cost for project phases
Phase | cost category | cost exact (k€) | Lead organisation | Contact forename | Contact surname |
---|---|---|---|---|---|
Investigation and design | |||||
Stakeholder engagement and communication | |||||
Works and works supervision | |||||
Post-project management and maintenance | |||||
Monitoring |
Supplementary funding information
Total budget 2,363,206.00 € EU contribution 1,181,603.00 €
Reasons for river restoration
Mitigation of a pressure | Regulation of water courses, intensive forestry practices, tourism, traffic |
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Hydromorphology | |
Biology | |
Physico-chemical | |
Other reasons for the project |
Measures
Structural measures
| |
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Bank/bed modifications | Construction of gravel banks, Bank restoration, Creation of pools and riffles, Bank stabilization and erosion protection, Creation of pools and riffles |
Floodplain / River corridor | Construction a new pond, Develop riparian forest |
Planform / Channel pattern | |
Other | Creation of a new estuary |
Non-structural measures
| |
Management interventions | Monitoring strategy |
Social measures (incl. engagement) | Educating the community on environmental protection and promoting environmentally-friendly behaviour |
Other | Popularization of the project |
Monitoring
Hydromorphological quality elements
Element | When monitored | Type of monitoring | Control site used | Result | ||
---|---|---|---|---|---|---|
Before measures | After measures | Qualitative | Quantitative |
Biological quality elements
Element | When monitored | Type of monitoring | Control site used | Result | ||
---|---|---|---|---|---|---|
Before measures | After measures | Qualitative | Quantitative |
Physico-chemical quality elements
Element | When monitored | Type of monitoring | Control site used | Result | ||
---|---|---|---|---|---|---|
Before measures | After measures | Qualitative | Quantitative |
Any other monitoring, e.g. social, economic
Element | When monitored | Type of monitoring | Control site used | Result | ||
---|---|---|---|---|---|---|
Before measures | After measures | Qualitative | Quantitative |
Monitoring documents
Image gallery
Additional documents and videos
Additional links and references
Link | Description |
---|---|
http://www.life-enns.at/projekt en.php | LIFE Enns Fluss Landschaft Enns |
http://www.nationalpark.co.at/nationalpark/de/life.php | Life-Project: Conservation strategies for forest and wild river in Gesaeuse |
http://www.nationalpark.co.at/nationalpark/de/life-gewaesser-ennsleitlinie.php | Gewässer-Auen-Leitlinie „Enns“ (Partnerprojekt) |
Supplementary Information
Edit Supplementary Information
1. Nationalpark Gesäuse GmbH (2010) Laienbericht des Projektes
2. Nationalpark Gesäuse GmbH (2011) Project's Final Report