Fig. 1
a C-D effect in a hypothetical spacing trial of four population grown at different densities (ρ1…ρ4) and monitored at three points in time (t1…t3); b stand development trajectories and top height (t1…t3) isolines in a density management diagram for pure, even-aged tree populations. Self-thinning limit in bold. If coupled with local site index curves, top height is indicative of stand age