Table 18.0a. Relative standard errors (%) of total above-ground biomass on forest land by species group and age class in Canada.
Species group Age (years)
1-20 21-40 41-60 61-80 81-100 101-120 121-140 141-160 161-180 181-200 201+ Other1
Unclassified 13.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.6
Unspecified hardwoods 7.4 17.6 29.3 60.6 99.9 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Other hardwoods 11.3 10.2 10.4 9.5 19.8 23.7 32.7 53.8 61.2 0.0 0.0 0.0
Maple 11.2 8.2 5.1 6.1 7.1 13.9 17.4 27.9 61.0 100.0 85.1 0.0
Birch 12.5 7.0 4.6 4.7 5.6 10.1 18.9 66.5 56.4 90.5 100.0 0.0
Poplar 6.6 5.2 3.8 3.0 3.8 6.6 10.8 21.3 24.0 62.9 36.9 0.0
Unspecified conifers 5.3 8.2 20.5 54.5 73.9 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Cedar & other conifers 39.7 14.4 12.6 9.8 12.1 13.2 25.9 25.4 32.2 34.4 8.5 0.0
Larch 11.1 10.7 12.6 14.9 13.8 16.7 19.6 22.0 25.2 42.0 33.9 0.0
Douglas-fir 39.7 23.1 17.6 14.6 13.0 9.9 12.8 12.2 15.3 20.7 13.2 0.0
Hemlock 43.9 18.0 16.0 18.1 18.1 20.1 26.2 19.7 21.1 21.8 6.1 0.0
Fir 11.6 5.7 4.8 6.0 5.4 7.8 10.1 10.8 10.7 12.4 5.9 0.0
Pine 8.0 6.5 5.6 4.3 4.3 5.6 6.5 8.3 11.4 15.9 12.6 0.0
Spruce 6.5 4.7 3.5 2.6 1.4 1.8 2.8 5.6 7.5 12.3 6.1 0.0
Source: Canada's National Forest Inventory, revised 2006 baseline (Version 3, December 2013) (http://nfi.nfis.org)
Note: The Arctic ecozones (Arctic Cordillera, Northern Arctic, Southern Arctic), and the Taiga Plains and Hudson Plains ecozones located in Nunavut, are not inventoried. The total area amounts to 262,189.89 thousand ha.
1 Missing or unknown age class.