Table 16.2a. Relative standard errors (%) of total tree volume by species group, age class and boreal zone in Canada.
Boreal zone 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
Non-boreal Unclassified 29.9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 80.0
Unspecified hardwoods 9.2 30.3 29.9 61.1 99.9 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Other hardwoods 12.1 11.7 11.3 10.6 22.5 34.3 38.8 100.0 0.0 0.0 0.0 0.0
Maple 12.3 8.2 5.0 6.0 6.8 14.0 17.2 27.8 60.8 100.0 86.8 0.0
Birch 16.9 8.9 6.4 6.7 6.8 16.1 23.2 72.7 93.3 89.9 100.0 0.0
Poplar 11.6 8.8 6.6 6.2 8.5 15.0 19.7 24.6 30.0 76.3 51.9 0.0
Unspecified conifers 7.5 15.3 75.3 86.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Cedar & other conifers 38.1 14.4 12.6 9.7 12.6 14.4 37.7 38.9 34.5 35.9 9.0 0.0
Larch 29.9 18.1 19.5 21.4 24.8 25.6 32.6 36.0 57.1 48.6 35.6 0.0
Douglas-fir 52.0 28.8 19.1 16.0 13.8 10.5 13.5 12.8 15.8 21.5 13.7 0.0
Hemlock 52.8 19.3 16.9 18.9 19.1 21.2 27.0 20.5 21.8 22.6 6.9 0.0
Fir 10.8 6.7 5.8 9.5 9.6 14.6 14.3 15.2 14.0 14.6 6.8 0.0
Pine 15.0 12.4 9.5 7.1 6.9 7.7 8.1 10.3 13.6 17.2 13.7 0.0
Spruce 11.0 9.2 5.0 6.0 7.1 10.2 11.4 11.9 11.1 16.1 7.7 0.0
Boreal Unclassified 14.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Unspecified hardwoods 11.8 19.8 77.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Other hardwoods 32.2 20.9 23.9 17.0 18.2 16.9 44.4 54.2 66.7 0.0 0.0 0.0
Maple 87.0 55.6 18.0 44.4 52.2 78.8 84.8 0.0 0.0 0.0 0.0 0.0
Birch 23.8 10.8 6.7 6.4 7.6 12.6 29.8 78.6 67.6 0.0 0.0 0.0
Poplar 8.7 6.9 4.7 3.5 4.2 7.5 13.0 28.3 34.9 97.0 49.0 0.0
Unspecified conifers 7.0 9.6 20.9 70.4 86.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Cedar & other conifers 73.3 68.7 46.1 39.0 28.5 32.1 24.2 28.2 50.4 100.0 0.0 0.0
Larch 13.0 14.4 13.6 8.6 9.3 10.0 14.8 23.3 28.6 49.0 73.7 0.0
Fir 30.0 11.8 10.0 7.4 6.9 9.4 14.0 14.8 18.2 19.6 13.5 0.0
Pine 9.5 7.6 7.3 5.3 5.5 8.6 11.0 14.3 21.1 41.9 30.7 0.0
Spruce 11.1 6.4 4.7 3.1 1.8 1.9 3.2 6.6 10.6 18.0 10.9 0.0
Canada Unclassified 13.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 80.0
Unspecified hardwoods 7.4 17.5 29.2 61.1 99.9 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Other hardwoods 11.6 10.4 10.8 9.6 19.5 24.2 32.5 54.2 66.7 0.0 0.0 0.0
Maple 12.2 8.1 4.9 6.0 6.7 13.8 17.2 27.8 60.8 100.0 86.8 0.0
Birch 13.8 7.1 4.6 4.7 5.1 9.9 18.6 65.5 57.6 89.9 100.0 0.0
Poplar 7.1 5.5 3.9 3.1 3.8 6.8 11.2 22.3 24.2 63.6 37.4 0.0
Unspecified conifers 5.5 8.4 20.7 55.2 86.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Cedar & other conifers 37.6 14.1 12.3 9.5 11.7 13.2 25.6 25.9 32.6 35.4 9.0 0.0
Larch 17.6 11.3 11.4 11.4 12.2 15.5 18.6 21.4 26.0 43.6 33.8 0.0
Douglas-fir 52.0 28.8 19.1 16.0 13.8 10.5 13.5 12.8 15.8 21.5 13.7 0.0
Hemlock 52.8 19.3 16.9 18.9 19.1 21.2 27.0 20.5 21.8 22.6 6.9 0.0
Fir 10.3 5.8 5.1 6.5 5.6 8.0 10.3 11.1 11.1 12.6 6.1 0.0
Pine 8.0 6.5 5.9 4.3 4.3 5.7 6.5 8.4 11.5 16.0 13.0 0.0
Spruce 7.8 5.5 3.8 2.8 1.7 1.9 3.1 5.8 7.7 12.7 6.3 0.0
Source: Canada's National Forest Inventory, revised 2006 baseline (Version 3, December 2013) (http://nfi.nfis.org)
Note: The Non-boreal zone in the Arctic ecozones (Arctic Cordillera, Northern Arctic, Southern Arctic) are not inventoried. The total land and water area amounts to approximately 252,202.08 thousand ha.
1 Missing or unknown age class.