Table 1 Summarised data from the sample of plots and trees used in the study
P. pinaster | P. radiata | |||||||
|---|---|---|---|---|---|---|---|---|
Mean | Max. | Min. | SD | Mean | Max. | Min. | SD | |
Stand variable | 82 inventories | 363 inventories | ||||||
N (stems ha−1) | 1,346 | 2,440 | 400 | 417 | 980 | 4,864 | 280 | 490 |
G (m2 ha−1) | 30.5 | 68.8 | 7.8 | 10.8 | 38.1 | 87.1 | 15.3 | 10.0 |
d q (cm) | 17.1 | 24.1 | 10.4 | 3.4 | 24.1 | 45.3 | 7.9 | 7.6 |
H m (m) | 10.6 | 18.9 | 4.7 | 2.7 | 19.7 | 32.7 | 9.1 | 5.2 |
H 0 (m) | 12.2 | 20.9 | 5.4 | 3.1 | 22.6 | 35.4 | 11.1 | 5.4 |
t (years) | 18.7 | 32 | 8 | 4.8 | 24.7 | 47 | 11 | 8 |
Tree variable | 204 treesa | 161 treesa | ||||||
d (cm) | 19.0 | 49.2 | 5.44 | 10. 7 | 16.9 | 40.2 | 4.80 | 7.68 |
h (m) | 13.2 | 23.8 | 4.05 | 4.93 | 16.8 | 32.0 | 5.40 | 5.73 |
w l (kg) | 9.48 | 70.23 | 0.24 | 11.81 | 5.09 | 26.40 | 0.09 | 5.14 |
w b6 (kg) | 1.72 | 13.73 | 0.06 | 2.08 | 3.64 | 16.83 | 0.14 | 3.39 |
79 treesb | 106 treesb | |||||||
d (cm) | 12.8 | 23.1 | 4.5 | 6.1 | 15.1 | 38.5 | 4.8 | 6.5 |
h (m) | 10.2 | 16.6 | 4.0 | 4.9 | 15.2 | 32.0 | 5.4 | 5.2 |
w l (kg) | 4.13 | 15.31 | 0.24 | 3.76 | 3.61 | 21.42 | 0.09 | 4.00 |
w b6 (kg) | 1.02 | 3.67 | 0.11 | 0.74 | 2.97 | 12.88 | 0.14 | 2.89 |
t (years) | 18.5 | 32 | 12 | 7.4 | 21.0 | 44 | 12 | 7.7 |