The pedoclimatic context of Morvan (cold, wet, acid...) allows moderate grassland production. The agricultural development of the territory is therefore mainly oriented towards permanent grassland. Morvandal agriculture, oriented towards lactating livestock (lean cattle), is based on the export of lean charolais, dependent on world markets. Production is extensive with an average of 0.95 LU/ha of Main Forage Surface, three quarters of which are permanent grasslands. Practices tend to abandon the most restrictive but rich spaces in terms of biodiversity, and/or intensify, leading in particular to the loss of biodiversity and the trivialisation of the bocager landscapes, especially on the margins of the massif. Consistent with the new Park Charter 2020-2025, the overall objectives aim to make grasslands and bocage the future values of Morvan by maintaining biodiversity and landscape quality through the development of agroecology in order to design production systems that rely on the functionalities offered by ecosystems. All the interventions aim to keep the herbaceous environments open, guaranteeing a rich and diverse biodiversity and landscape, through experimental actions aimed at changing agricultural practices implemented.