Fig. 4From: Spatial distribution of the potential forest biomass availability in EuropeHotspots (i.e. NUTS-2 regions with the 25% largest values) in forest biomass availability according to the BASE potential when expressing biomass potentials per unit of land (a), unused potential per unit of land (b), as proportion of total ligno-cellulosic biomass potential in the region (c) and the total number of hotspots per region (d)Back to article page