Fig. 2

Schematic representation of the cumulative distribution of stem volume growth (ordinate) over stem volume (abscissa) for forest stands with different competitive status of small compared with tall trees. Curve 1 indicates a growth dominance of tall trees, curve 3 a growth dominance of small trees, and curve 2 indicates that all trees contribute to stand volume growth proportionally to their volume. Curves 1, 2, and 3 result in GDC = 0.17, 0 and − 0.12