Improve water quality

Monitoring the success of Liberty Island, Hungary

Liberty Island in the Danube River, Hungary

The creation of a long-term, sustainable conservation model for white willow (Salicion albae) alluvial forests in Hungary and a more near-natural flow regime of the Danube. A core aim was to eliminate or mitigate the factors that threaten the habitats of community interest. 

This case study is one of 17 that are part of the EU Horizon2020 project MERLIN - Mainstreaming Ecological Restoration of freshwater-related ecosystems in a Landscape context: INnovation, upscaling and transformation. Within MERLIN, the project area of the Liberty Island restoration is revisited to learn from...

Restoring Danube floodplains in Romania

Garla Mare Romania

Former wetlands adjacent to the river are being reconnected to demonstrate the benefits of re-wetting /reconnection to the natural flood pulse of the Danube River in order to enhance the benefits provided to nature and local communities.

This case study is one of 17 that are part of the EU Horizon2020 project MERLIN - Mainstreaming Ecological Restoration of freshwater-related ecosystems in a Landscape context: INnovation, upscaling and transformation.

Restoring Danube floodplains in Austria

Danube estuary Tiergartenarm (Austria) (photo viadonau)

Riverbank restorations are implemented on a stretch of approximately 800m shoreline of the Danube to increase lateral river-floodplain connectivity and the functioning of the floodplain as an ecosystem. The aim is to reach a good ecological status of the river as well as good navigation status. The case study works with an adaptive management process and adresses multiple pressures (ecological deficits, security of navigation, riverbed deepening, flood protection).

This case study is one of 17 that are part of the EU Horizon2020 project MERLIN - Mainstreaming Ecological Restoration...

Kristianstads Vattenrike - Sweden’s oldest UNESCO biosphere reserve

In 2005, the UN agency UNESCO approved Kristianstads Vattenriket as a biosphere reserve covering 100 000 ha, and one of 700 in the world. This means Kristianstads Vattenrike is an internationally recognized  model for sustainable development. The Vattenrike encompasses two thirds of the municipality of Kristianstad, with the goal to “preserve, develop and support the landscape's values”. 

Nature-based solutions have been key for protection against droughts, floods, and preservation of the area, as well as nutrient leakage into the Baltic Sea.

The areas in Vattenriket include...

Restoring a Healthy Vejle Fjord

The environmental condition of Vejle Fjord has been categorized as bad in the inner and outer fjords. For the past 40 years, the Vejle Fjord has struggled to mitigate the runoff from industries and cities around the area, causing eutrophication and biodiversity loss. 

The 5-year-project (2020-2024) was initiated by the Nature and Environment Committee and the Board of Directors for Vejle Ådal & Fjord, with a budget of 25 mio. DKK. The project aims to improve the ecological condition of the fjord and strengthen biodiversity by:

  • Restoring eelgrass beds

    • ...

Votlendissjóður - The Icelandic Wetland Fund

Votlendissjóður was established in 2018 with the goal to restore and reclaim wetlands in Iceland through cooperation with landowners, municipalities, the Icelandic state, companies, NGO’s and farmers. The fund provides finances, and in some instances  equipment and personnel, to parties interested in restoring wetlands not used for cultivation or forestry. Alternatively, the Votlendissjóður themselves can foster wetlands and carry out restorations through approved methods and professionals. Volunteers monitor the effects of the wetland on birds, plants and other wildlife in the area. ...

The Nabben Multifunctional Wetland in Åland

A newly built multi-functional urban wetland in the Nabben area, Åland, recently won the Nordic Council Environmental Prize 2022 focused on nature-based solutions. The wetland, which was finished in 2019 and lies adjacent to the coast, aims to increase the biodiversity in the area and contribute to the improvement of the water quality of the Baltic Sea by reducing nutrient runoff. Furthermore, it is used as an area for recreation, social cohesion and education for the city residents. 

There are several components to the Nabben wetland ecosystem. The first separates the microplastics...

SABICAS - Haldenvassdraget

SABICAS (SAfeguard BIodiversity and improve Climate Adaptation in catchment areas under pressure: tools and Solutions) aims to provide tools and knowledge needed to quantify the benefits and co-benefits of nature-based solutions. The goal is to facilitate dialogue and decision making among stakeholders and managers. SABICAS will engage with all key catchment stakeholders through several activities, including workshops and living labs.

SABICAS - Gausa catchment case study

SABICAS (SAfeguard BIodiversity and improve Climate Adaptation in catchment areas under pressure: tools and Solutions) aims to provide tools and knowledge needed to quantify the benefits and co-benefits of nature-based solutions. The goal is to facilitate dialogue and decision making among stakeholders and managers. SABICAS will engage with all key catchment stakeholders through several activities, including workshops and living labs.

Erosion Protection with Nature-based Solutions in Norway

The Norwegian Institute for Bioeconomy will prevent erosion by strengthening slopes and edges with nature-based solutions (NbS). The aim is to improve local environmental conditions and increase water quality and biodiversity in streams and rivers.

In many creeks and streams, both large and small, erosion is a major problem. The problem arises as a result of various types of interventions in nature and is typically solved with stone and concrete - so-called grey solutions. But the grey solutions often have negative consequences on the local environmental conditions, water quality...

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