Table 5 Species composition for the baseline, and differences by scenario for a) stands less than 60 years of age in 2070 and b) stands greater than 180 years within the timber harvesting landbase
Species | Baseline area in 2070 (Mha) | Change in area for harvest less minus baseline (Mha) | Change in area for restricted harvest minus baseline (Mha) |
|---|---|---|---|
Stands less than 60 years of age | |||
Lodgepole pine | 4.64 | − 0.14 | − 0.12 |
Spruce | 2.23 | − 0.10 | − 0.13 |
Douglas-fir | 1.29 | − 0.07 | − 0.04 |
Western hemlock | 1.01 | − 0.04 | − 0.01 |
Subalpine fir | 1.00 | − 0.06 | − 0.05 |
Aspen | 0.74 | − 0.04 | − 0.04 |
White spruce | 0.73 | − 0.05 | − 0.07 |
Engelmann spruce | 0.54 | − 0.03 | − 0.02 |
Redcedar | 0.40 | − 0.02 | 0.00 |
Amabilis fir | 0.20 | 0.00 | 0.00 |
Western larch | 0.16 | − 0.01 | 0.00 |
Other | 0.41 | − 0.02 | − 0.02 |
Total | 13.35 | − 0.57 | − 0.50 |
Stands greater than 180 years | |||
Spruce | 0.94 | 0.07 | 0.12 |
Subalpine fir | 0.77 | 0.04 | 0.04 |
Lodgepole pine | 0.71 | 0.05 | 0.09 |
Douglas-fir | 0.68 | 0.03 | 0.04 |
White spruce | 0.51 | 0.03 | 0.07 |
Western hemlock | 0.49 | 0.03 | 0.01 |
Engelmann spruce | 0.33 | 0.02 | 0.02 |
Redcedar | 0.29 | 0.02 | 0.00 |
Aspen | 0.25 | 0.01 | 0.03 |
Black spruce | 0.08 | 0.00 | 0.01 |
Amabilis fir | 0.06 | 0.00 | 0.00 |
Other | 0.17 | 0.01 | 0.01 |
Total | 5.27 | 0.32 | 0.43 |