Case study:LIFE+ Traisen: Difference between revisions
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Revision as of 15:48, 13 January 2021
This case study is pending approval by a RiverWiki administrator.
Project overview
Status | Complete |
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Project web site | |
Themes | Environmental flows and water resources, Fisheries, Habitat and biodiversity, Monitoring |
Country | Austria |
Main contact forename | Florian |
Main contact surname | Seidl |
Main contact user ID | |
Contact organisation | |
Contact organisation web site | http://life-traisen.at |
Partner organisations | |
Parent multi-site project | |
This is a parent project encompassing the following projects |
No |
Project summary
The Traisen is one of the largest rivers in Lower Austria. During construction of the Danube power plant Altenwörth, the Traisen was lengthened by 7.5 km and nowadays empties into the Danube downstream of the power plant. The riverbed used to run in an even, straight line through the floodplain between Traismauer and Zwentendorf. This section of river offered little habitat for typical animals and plants and was not connected to the surrounding landscape or the bodies of water in the floodplain. The ability of fish to pass through the area was complicated by obstacles and in some places impossible.
A natural river course with densely vegetated banks: that’s what the area around the mouth of the Traisen in Lower Austria looks like today. This was made possible by the LIFE+ Traisen project – Austria’s largest land restoration project to date. Many endangered kinds of flora and fauna have found a new home here.
Monitoring surveys and results
A new riverscape was created on an area of 150 hectares in the mouth section of the Traisen at the Danube power plant near Altenwörth. It is now continuously connected with its floodplain’s waterbodies.
LIFE+ Traisen is one of the most comprehensive restoration projects in Central Europe. Together, the project partners made an important contribution to the nature conservation objectives of the European Union.
The riverbed was successfully completed in 2016. Over an area of 150 hectares, a regionally typical new biosphere was created that will provide an expanded habitat for a multitude of domestic animal species. In order to do this, 800,000 m3 of clay and sand and 1.9 million m3 of gravel were relocated within the floodplain area to create standing water bodies and shallow water areas. Within the construction process the river was extended by 7.6 kilometres and the estuary of the Traisen River was relocated. The LIFE+ Traisen project resulted in a unique riverscape with a mosaic of existing and new habitats. Many animal and plant species have already settled in –including numerous endangered species.
Lessons learnt
A coalition of federal, regional and European stakeholders at the Danube made a large-scale project possble. The large dimension of the project is one of the main ecological succsess factors.
Image gallery
Catchment and subcatchment
Site
Project background
Cost for project phases
Reasons for river restoration
Measures
MonitoringHydromorphological quality elements
Biological quality elements
Physico-chemical quality elements
Any other monitoring, e.g. social, economic
Monitoring documents
Additional documents and videos
Additional links and references
Supplementary InformationEdit Supplementary Information
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