Table 1 Plot characteristics after different thinning treatments. Note that the statistically tests are for the pre-treatment values.
From: Thinning Effects on Biomass and Carbon Stock for Young Taiwania Plantations
Treatments | Stand density (trees ha−1) | DBH1)y (cm) | Heighty (m) | Basal area3)y (m2 ha−1) | Volume4)y (m3 ha−1) |
|---|---|---|---|---|---|
All plots | |||||
Before thinning | 1748 ± 280 | 17.1 ± 1.7 | 9.9 ± 0.4 | 39.7 ± 5.7 | 176.6 ± 29.4 |
No thinning plots | 1782 ± 3112) | 16.9 ± 1.6 | 9.8 ± 0.3 | 39.3 ± 5.3 | 173.7 ± 26.8 |
Medium thinning plots | |||||
Before thinning | 1689 ± 259 | 17.4 ± 1.7 | 9.9 ± 0.4 | 39.7 ± 6.3 | 177.8 ± 31.6 |
After thinning | 1137 ± 270 | 19.1 ± 2.2 | 10.3 ± 0.5 | 31.6 ± 1.4 | 146.8 ± 11.3 |
Heavy thinning plots | |||||
Before thinning | 1750 ± 286 | 17.1 ± 1.9 | 9.9 ± 0.4 | 39.9 ± 6.0 | 177.8 ± 32.3 |
After thinning | 921 ± 252 | 19.8 ± 2.6 | 10.4 ± 0.5 | 27.0 ± 1.8 | 127.1 ± 13.0 |
Duncan’s multiple range test | |||||
F-test | 0.492 | 0.381 | 0.342 | 0.015 | 0.446 |
P-value | 0.616 | 0.686 | 0.713 | 0.985 | 0.642 |
