La trame arborée : un élément pertinent pour articuler paysage et biodiversité dans la politique de la trame verte et bleue aux échelles infrarégionales ?

The Green and Blue Infrastructure is one of the flagship initiatives which resulted from the second French environmental round table. It is implemented via regional plans for environmental coherence, which have an impact on regional and urban planning documents. The green corridor, as a structural element of the landscape is an essential component of the Green and Blue Infrastructure. However, it is frequently poorly identified at the different spatial levels, especially in rural areas. The maps and planning documents of major ecological corridors on a medium scale (1/50 000 in the best cases) are useful, however they do not realistically reflect local biodiversity challenges. We shall demonstrate through an example in the Pyrenean Piedmont Ariège region, that there are viable methods for making detailed maps of green corridors by using images from the Pléaides satellites. These knowledge tools have been tested in an interactive workshop which revealed a great variety of representations of the green corridor among local stakeholders.