Fig. 10From: Under storm risk, economic productivity of Norway spruce (Picea abies (L.) H. Karst) in monoculture shows sharper decline than in mixture with European beech (Fagus sylvatica L.)Stems per hectare (y-axis) versus mean diameter (x-axis) for the data utilised to calibrate beech. The colours of the points correspond to density/diameter relationships of particular age classes. The legend shows the number in years for the given age classBack to article page