Environmental studies – biodiversity preservation

RÉSUMÉ

Accelerating the decarbonization of industrial sites requires anticipating impacts on the environment and biodiversity. With this objective, and in order to implement a Natural Site for Compensation, Restoration, and Renaturation (SNCRR), the Dunkerque Urban Community entrusted the teams of the Bailleul National Botanical Conservatory—an organization with which it regularly collaborates—with enhancing knowledge of biodiversity across its territory.

This survey focused in particular on four sites within the territory that are part of the CUD’s green and blue networks.

The surveys made it possible to propose management measures for the four sites studied. These measures generally involve extending wetland habitats through the creation of new water bodies, topsoil stripping, and the regrading of banks with gentle slopes. Topsoil stripping is also recommended in sandy areas to promote better development of vegetation and species associated with sandy habitats.

This work will help inform SNCRR development studies and support the development of ecological corridors in line with CUD planning