Fig. 2From: Extending harmonized national forest inventory herb layer vegetation cover observations to derive comprehensive biomass estimatesObserved plant group above-ground biomass (dry matter, g·m− 2) and percentage cover. For shrubs and subplot totals black circles indicate observed biomass based on shrubs including woody parts and red circles indicate observed biomass based on shrubs excluding woody parts measured on a subsample (N = 68) of subplots with shrub cover. Note the different y-axis scalesBack to article page