The Fontainebleau-Barbeau station, with ICOS code FR-Fon, is located about 50 km South-East of Paris (France), within the Atlantic Biogeographical Region and it is a deciduous oak forest. The climate is temperate oceanic, well representative of a large North-Western part of Europe. The forest is dominated by Quercus petraea (Matt.) Liebl. and Quercus robur L., with a hornbeam coppice understory established on a gleyic luvisol.