Increase Biodiversity

Climate change adaption and the river Seest Mølleå

The center of the city Kolding is frequently under threat from flooding due to heavy or prolonged precipitation events. Located at the bottom of a river valley, the municipality has initiated many climate-proofing projects to mitigate flood risks. One such project, initiated by Kolding municipality and the utility company Bluekolding, concerns the river Seest Mølleå. The nature-based climate adaptation project cost a total of 3,5 mio. DKK, and was inaugurated in November 2021 after 5 months of construction.

When heavy prescriptions occur in the large catchment area outside the city...

The Finnish River Management Association Virho

The Finnish River Management Association Virho (Virtavesien hoitohidstys Virho ry), was nominated for the Nordic Council Environment Prize 2022 with the theme of nature-based solutions. The Finnish River Management Association has the goal to revive and secure the living conditions of the entire water ecosystem in Finland. This includes fostering biodiversity and fish stocks in areas of flowing water. Virho has operated for more than 30 years restoring hundreds of kilometers of streams through building fish roads, rehabilitating streams and rapids, and deconstructing dams.

One such...

Kampinos National Park

The wetlands in Kampinos National Park, Poland, are restored in order to slow water runoff and protect Natura2000 habitats as well as species.

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.

Room for the Rhine branches

flooded Rhine branches in the Netherlands

The aim of this case study is the creation of ecological flood retention by changing land use, reconnecting floodplains and change of sluice management in summer dikes. Floodplains are reconnected and side channels restored or their creation supported, with longitudinal main channel dams benefitting both shipping and nature.

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...

Beaver re-introduction in Sweden

A truly nature-based solution is implemented by allowing beavers to spread into desired areas, letting them restore degraded wetlands and small streams and ditches as well as forest landscapes.

Removing dams in the Deba River, Spain

The hydro-geomorphology of the Deba River basin in the Basque country will be restored, mainly through dam demolition, restoring river morphology, connectivity and faunal permeability. Stakeholder interaction is being promoted, connecting local communities, institutions and governments. A main objective is to promote environmental education and the conceptualisation of nature-based solutions oriented restoration policies.

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...