Results
The box dimension was 1.5±0.1 and 1.6±0.1 for moderate and intensive thinnings, respectively, whereas for control plots it was 1.4±0.1, indicating increasing structural complexity of individual trees as the thinning intensity increased. The linear mixed-effects model and the analysis of variance revealed statistically significant difference (p<0.01) in box dimension between thinning treatments (Figure 4). Trees with small differences in box dimension can look very different as depicted in Figure 5.