Table 3 Summary statistics for the stand variables evaluated for the sub-sample plots of 500 m2 in the first year of measurements
Stand variable | Symbol (units) | Min. | Max. | Mean | Std. dev. |
|---|---|---|---|---|---|
Sub-sample plots—500 m2 | |||||
Number of trees per ha | N (trees ha−1) | 460 | 1,780 | 948 | 257.3 |
Basal area per ha | G (m2 ha−1) | 5.6 | 46.3 | 27.8 | 9.3 |
Quadratic mean diameter | dg (cm) | 8.7 | 27.5 | 19.4 | 4.3 |
Mean height | \( \bar{h} \) (m) | 4.2 | 16.8 | 12.5 | 2.8 |
Average crown ratio | \( \bar{{c}} {r} \) | 0.30 | 0.74 | 0.45 | 0.1 |
Dominant diameter | d dom (cm) | 11.6 | 36.0 | 28.7 | 5.1 |
Dominant height | h dom (m) | 5.0 | 19.2 | 15.4 | 2.9 |
Crown competition factor | CCF (%) | 25.0 | 158.0 | 98 | 30.7 |
Mean age | \( \bar{t} \) (years) | 18 | 53 | 40 | 7.9 |
Sample tree age range | \( \varDelta t \) (years) | 6 | 33 | 19 | 6.6 |