Table 1 Forest structural attributes (trees with diameter >5 cm inside the 0.01 ha circular plots) for fuels deposition plots in old-growth Jeffrey pine-mixed conifer forests in Sierra San Pedro Mártir National Park, northwestern Mexico. GRAN = granitic site, META = metamorphic site, SD = standard deviation of the mean (n = 10).
Site | Structural variable | Mean | SD |
|---|---|---|---|
GRAN | Canopy cover (%) | 32.1 | 3.6 |
Mean diameter (cm) | 33.7 | 0.8 | |
Live basal area (m2 ha−1) | 21.9 | 4.5 | |
Live density (trees ha−1) | 196.7 | 34.1 | |
Snag density | 0.0 | ||
META | Canopy cover (%) | 29.2 | 4.4 |
Mean diameter (cm) | 22.5 | 1.8 | |
Live basal area (m2 ha−1) | 21.9 | 4.8 | |
Live density (trees ha−1) | 336.7 | 82.7 | |
Snag basal area (m2 ha−1) | 2.5 | 1.8 | |
Snag density (trees ha−1) | 10.0 | 5.6 |