"Part of territory as perceived by populations, whose character results from the action of natural and/or human factors and their interrelations" (Council of Europe, 2000), the landscape is doubly concerned by transitions. When taken from the angle of its materiality (second part of the above definition), the transition makes it possible to question the landscape in its temporal dimension (the transition as transformation between two stages of evolution) and spatial dimension (the transition as boundary between two landscape morphologies). When taken from the angle of relational "median" (Berque, 1995) (first part of the definition), landscape can be grasped as an approach tool in the service of ecological, democratic and economic transitions. It is this angle of analysis that we will favour in passing to the filter of transitions some recent research programs dealing with various landscape problems: patrimonialization (PATRA), participation (PDD2), ecological restoration of rivers (REPPAVAL), pedagogy (Didactics of landscape). The conclusion will focus on the social mobilizations in favour of landscapes, at the heart of each of the themes addressed, and drivers of the transitions at work.

Hervé Davodeau is a geographer and lecturer at Agrocampus Ouest (Equipe Paysage d'Angers), and conducts his research within the UMR CNRS ESO "Espaces et Sociétés". His work falls within the field of social geography and focuses on landscape action understood as action led by and for the landscape. The idea is to consider landscapes "no longer as a reflection, starting point or arrival point for natural or social processes, but as an active agent, stakeholder in change. Both a result and a factor" (Sautter 1979). His research interests are public landscape policies, professional landscape practices, controversies and social mobilizations around landscapes.

Discussants : Jennifer Buyck & Aurore Meyfroidt