Table 8 Stand structural characteristics of beech, mixed (beech-oak), oak and linden forests (means (SD), averaged over the three transects, n = number of plots). Plots dominated by beech: all plots with basal area of F. sylvatica > 66.6%, oak: all plots with basal area of Quercus species > 66.6%, linden: all plots with basal area of T. tomentosa: > 66.6%, mixed: all other forests (except for stands with T. tomentosa > 66.6%) for the three transects (A, B, C). Stem ha−1, DBH, height (h), basal area (BA), stem volume (Vol) and carbon in stem biomass (AGC). Significant differences (p ≤ 0.05) between forest types are indicated by different small letters (one-way ANOVA with post hoc Tukey test)
Beech (n = 69) | Mixed (n = 106) | Oak (n = 52) | Linden (n = 38) | |
|---|---|---|---|---|
Stem [ha−1] | 636.3 (311.3) a | 869.3 (469.8) b | 733.4 (267.4) a b | 1234.7 (486.4) a b |
DBH [cm] | 26.8 (14.4) a | 21.3 (12.3) b | 23.0 (11.4) b | 20.1 (9.7) b |
h [m] | 26.5 (6.2) a | 20.5 (7.2) c | 17.7 (7.5) b | 20.5 (6.7) c |
BA [m2 ha−1] | 46.2 (3.2) a | 41.3 (14.2) b | 37.8 (9.5) b | 48.5 (13.3) a |
Vol [m3 ha−1] | 621.9 (211.5) a | 499.2 (229.8) b c | 446.1 (149.1) c | 544.6 (191.8) a b |
AGC [Mg C ha−1] | 180.9 (61.6) a | 137.2 (60.3) b | 141.3 (46.7) b | 125.3 (41.6) b |