Fig. 3
Store of aboveground biomass carbon (in Mg C ha−1) in the oak, mixed and beech forest plots (means and standard error (SE) of the three transects). Plots dominated by linden (basal area of T. tomentosa > 66.6%) are also shown. Beech forests: all plots with basal area of F. sylvatica > 66.6%, oak forests: all plots with basal area of Quercus species > 66.6%, mixed forests: all other forests (except for stands with T. tomentosa > 66.6%). Significant differences between forest types (p ≤ 0.05) are marked with different small letters (one-way ANOVA with post hoc Tukey test)