I am an agronomist working on the development of new types of models allowing the sharing of knowledge and representations of stakeholders with different interests and values in order to design new territorial organizations reconciling agricultural production and environmental preservation. I use participatory action-research methods, in particular the Companion Modelling approach, to create role-playing games in order to encourage dialogue, shared learning and collective decision-making, and to strengthen the adaptive management capacity of stakeholders faced with difficult environmental problems.