Renaturation as part of the "Zero Net Artificialization" (ZAN) program

Depaving and renaturing cities: from ambition to reality

Figure 1 - The former Kodak industrial site has been transformed into a semi-natural area with a wide variety of habitats (© CDC Biodiversité).

Figure 2 - Natur-Park Schöneberger Südgelände in Berlin (© Wikimedia Commons)

Figure 3 - Example of areas that have been desilted but do not fall into the category of renaturalized areas (© Gilles Lecuir)

Figure 4 - Experiment in Geneva showing that tree growth is much faster in continuous pits (© L. Chabbey, M. Schaller, P. Boivin, HEPIA, Geneva)

Figure 5 - Fascination of willows carried out by the Espaces association on Ile Saint-Germain in Issy-les-Moulineaux (92) to stabilize and revegetate the banks (© Association Espaces)

Figure 6 - Restoration of the Catharijnesingel canal in Utrecht

Figure 7 - Crushed asphalt giving way to spontaneous vegetation on an old departmental road in Saint-Jacques-de-la-Lande (© Yann Laurent)

Figure 8 - Example of a phytoremediation garden: Parc départemental du Peuple de l&#039;Herbe in Carrières-sous-Poissy (78) (© Atelier d&#039;écologie Urbaine)

Figure 9 - Soil pit under asphalt in Angers (© Robin Dagois – Plante &amp; Cité)

Figure 11 - Evolution over time of the horizons of a technosol according to the nomenclature of the 2006 World Reference Base for soil Resources (© Schwartz, G. Séré, Université de Lorraine)

Figure 12 - One of the experimental sites, five months after implementing different soil rehabilitation strategies (© Valorhiz)

Figure 13 - Permanent and temporary wetlands on the Vignois site, now a flood expansion zone (© SIAH Croult et Petit Rosne)