Recolonization of vegetation after turf-cutting in the wet heathland of the Landes de Versigny Natural Reserve

FR2116International audienceIf burning was a standard management tool for heathland, the loose of traditional management occurs more and more and might be the cause of severe humus fires. Through different diachronical techniques, we analyze plant and ecosystems responses linked with different fire intensities and their consequences. Four major dynamic trajectories occured in relation with fuel accumulation, ash accumulation or erosion, and persistence or not of an active seed bank. Plant population dynamics and their responses to disturbance determine resilience levels and quickness of heathland communities after severe summer fires in 1976