proefdijken Radboud Campus
proefdijken Radboud Campus

Five flower-rich dikes

Duration
2025
Project member(s)
Prof. J.C.J.M. de Kroon (Hans) Dr N.M. van Rooijen (Nils) Dr M.A.A. Evers (Maurice) , Thomas Evers , Cyril Liebrand
Project type
Research
Organisation
Faculty of Science

In the coming years, no less than 1,500 kilometres of dikes in the Netherlands will be reinforced to meet the new safety standards. Strengthening the dikes is essential, but it also presents an excellent opportunity to boost biodiversity. A huge challenge — but also a wonderful opportunity! That is precisely the mission of Future Dikes: to develop dikes that are both safe and far richer in biodiversity. In this subproject of Future Dikes, we are transforming five stretches of dike into biodiverse, species-rich sections.

Why this project?

In the Netherlands, dikes are traditionally covered with uniform grassland. While functional, this offers little scope for biodiversity. With a smart approach and different planting, however, dikes can become home to countless plant and animal species. Moreover, the river dikes that wind through the Netherlands form a network of ecological connections: main arteries linking ecosystems together.

Dike managers and water boards are enthusiastic about this idea but have many questions. Which plants grow best on a dike? How do you maintain a species-rich dike? What impact does climate change have? Future Dikes is conducting research and guiding them step by step towards creating a biodiverse dike landscape.

With the contribution from Natuurhuisje, the Future Dikes team can support dike managers across the Netherlands in transforming their dikes. This includes:

  • Mapping the current situation: soil type, location, and existing flora.
  • Creating an action plan.
  • Advising on suitable planting and developing a customised seed mix.
  • Drawing up a maintenance plan for mowing and other care.
  • Monitoring the dike’s biodiversity to track long-term effects.

In the first year, Future Dikes will start with five dike sections. Based on these experiences, we will work together to scale up the project over the coming years.

Why is this important for biodiversity?

This approach creates flower-rich dikes that act as ‘stepping stones’: places where biodiversity can take root and spread. By selecting the right plants and tailoring management accordingly, dikes become safe havens for insects and plants. They also link different nature areas, making it easier for species to migrate and survive. In this way, we are transforming Dutch dikes into not just water defences, but also thriving natural landscapes.

Funding

Partners

Contact information

More information? Please contact: