Résumé
Constructed Wetlands with Macrophytes (CWMs) are increasingly used for treating domestic wastewater. While they are often considered passive filters made of sand and gravel, our research highlights that they rapidly evolve into living soil systems, colonized by soil macrofauna such as earthworms and other invertebrates such as bacterial communities. Like river banks, CWMs are artificial soil systems that are intermittently saturated and unsaturated with water, likely accelerating the mineralization kinetics of degradable materials and the life trajectories of microbial communities (Gérino et al., 2022).