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 63.6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Unspecified hardwoods 11.0 15.7 17.9 49.3 23.3 65.2 100.0 0.0 0.0 0.0 0.0 0.0
Other hardwoods 23.3 14.6 13.1 11.7 15.7 31.5 50.3 69.7 100.0 100.0 55.3 0.0
Maple 14.7 8.2 5.6 5.9 6.2 11.7 28.9 34.1 76.3 0.0 81.1 0.0
Birch 11.8 7.9 7.7 7.1 6.9 14.6 21.7 38.0 90.7 99.5 84.2 0.0
Poplar 9.2 6.0 5.9 6.9 9.0 21.1 14.2 23.9 36.6 41.4 47.1 0.0
Unspecified conifers 11.5 12.0 20.4 41.8 32.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Cedar & other conifers 30.5 16.3 15.9 14.6 10.8 14.9 17.4 33.5 26.9 22.8 8.9 0.0
Larch 26.9 16.5 16.4 17.4 24.7 26.5 24.9 36.8 39.4 51.2 28.7 0.0
Douglas-fir 26.3 26.6 21.1 21.1 13.9 11.9 12.6 13.3 15.3 18.0 14.8 0.0
Hemlock 23.5 17.1 16.3 21.2 17.7 17.5 15.1 21.9 17.0 24.9 7.0 0.0
Fir 12.5 6.5 5.2 7.0 8.3 13.1 11.9 12.5 13.5 12.1 7.3 0.0
Pine 17.3 8.2 9.2 7.6 7.5 8.1 8.7 11.7 20.2 18.0 14.6 0.0
Spruce 11.4 7.3 7.6 4.9 5.7 8.9 9.4 10.3 11.8 12.2 8.0 0.0
Boreal Unclassified 69.8 100.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Unspecified hardwoods 11.7 17.6 40.3 81.2 0.0 0.0 100.0 0.0 0.0 0.0 0.0 0.0
Other hardwoods 34.3 24.2 23.3 17.1 20.4 18.1 58.9 67.8 64.7 100.0 0.0 0.0
Maple 48.7 31.9 32.7 24.8 48.4 82.5 0.0 0.0 0.0 0.0 0.0 0.0
Birch 8.4 6.7 6.9 6.9 7.3 12.6 21.3 36.0 44.1 68.0 90.0 0.0
Poplar 6.6 5.2 5.3 4.0 4.1 6.0 11.2 19.0 37.8 48.1 52.8 0.0
Unspecified conifers 8.7 9.1 25.9 36.1 59.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Cedar & other conifers 75.7 42.9 22.5 15.6 21.7 23.2 24.6 38.0 59.4 0.0 0.0 0.0
Larch 18.4 7.1 6.2 5.7 6.4 7.3 9.2 14.4 22.9 29.5 50.6 0.0
Fir 16.6 7.7 7.8 8.8 5.6 10.1 9.6 13.0 17.2 21.4 16.8 0.0
Pine 6.4 4.6 5.2 5.7 5.6 8.0 9.8 14.0 19.8 48.0 30.0 0.0
Spruce 8.9 3.7 2.9 2.5 2.3 2.3 2.2 4.1 8.4 15.9 10.5 0.0
Canada Unclassified 63.1 100.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Unspecified hardwoods 8.1 11.8 17.6 49.0 23.3 65.2 99.5 0.0 0.0 0.0 0.0 0.0
Other hardwoods 19.5 13.4 12.5 10.6 14.0 24.6 40.7 48.6 61.5 95.3 55.3 0.0
Maple 14.6 7.9 5.5 5.8 6.2 11.7 28.9 34.1 76.3 0.0 81.1 0.0
Birch 6.8 5.1 5.2 5.0 5.0 9.5 15.2 26.6 40.0 56.2 62.7 0.0
Poplar 5.6 4.0 4.2 3.6 3.7 6.1 9.6 15.3 31.6 31.4 35.6 0.0
Unspecified conifers 7.1 7.4 17.3 30.9 28.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Cedar & other conifers 29.7 16.1 15.5 13.4 9.8 12.8 14.5 29.9 26.0 22.8 8.9 0.0
Larch 16.7 6.5 5.8 5.5 7.5 8.4 10.3 14.1 23.0 36.6 26.1 0.0
Douglas-fir 26.3 26.6 21.1 21.1 13.9 11.9 12.6 13.3 15.3 18.0 14.8 0.0
Hemlock 23.5 17.1 16.3 21.2 17.7 17.5 15.1 21.9 17.0 24.9 7.0 0.0
Fir 10.1 5.0 4.4 5.5 4.7 8.1 7.5 9.3 10.8 10.7 6.9 0.0
Pine 6.0 4.0 4.5 4.6 4.8 5.7 6.5 9.0 14.5 17.8 13.5 0.0
Spruce 7.3 3.3 2.7 2.2 2.1 2.2 2.2 3.8 6.8 9.7 6.4 0.0
Source: Canada's National Forest Inventory, combined remeasured (2007-2017) and projected (2006-2017 with NFI projection system) data (Version 1, August 2021) (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.