Fig. 2

The selected model (Total Model), showing the dry weight biomass estimations for the target species (W, in Mg·ha^− 1) according to: a volume of the stand for the target species (V, in m³·ha^− 1); b Martonne aridity index (M, in mm·°C^− 1); c mean tree volume (vm, in m³ per tree); and d stand form factor (f). The variable represented in each figure on the x axis, ranges from 1% to 99% of its distribution in the data used, while the rest of the variables remain constant and equal to: V = 150 m³·ha^− 1; M = 30 mm·°C^− 1; f = 0.5; and vm = 0.5 m³ per tree. Species as in Table 3