Table 18.2a. Relative standard errors (%) of total above-ground biomass on forest land 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 63.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4.9
Unspecified hardwoods 11.2 16.0 18.0 50.6 22.8 65.5 100.0 0.0 0.0 0.0 0.0 100.5
Other hardwoods 26.2 13.9 12.6 11.2 15.2 30.2 48.6 69.1 100.0 100.0 53.2 0.0
Maple 17.5 9.0 5.6 6.0 6.2 11.7 29.0 35.5 74.5 0.0 78.1 82.2
Birch 13.3 8.2 7.6 7.1 6.9 14.5 21.4 37.9 88.5 99.3 82.9 100.0
Poplar 9.6 5.9 5.7 6.7 8.8 19.8 14.0 23.4 36.7 41.3 46.9 0.0
Unspecified conifers 11.1 12.1 20.6 41.4 33.3 0.0 0.0 0.0 0.0 0.0 0.0 75.8
Cedar & other conifers 26.0 15.9 15.0 13.9 10.5 14.5 16.8 32.2 26.9 21.9 8.8 0.0
Larch 24.7 16.5 16.3 16.6 24.4 26.4 24.7 37.6 39.5 50.9 28.1 0.0
Douglas-fir 26.3 24.8 20.5 20.6 13.2 11.5 12.2 12.6 15.3 17.7 14.4 0.0
Hemlock 21.6 16.3 15.9 20.3 17.0 17.0 14.8 21.5 16.7 24.8 6.9 0.0
Fir 13.1 6.7 5.1 7.1 8.3 12.6 11.2 12.3 12.6 12.1 7.1 100.0
Pine 16.6 8.2 9.0 7.5 7.3 7.9 8.4 11.5 18.7 17.4 14.2 93.7
Spruce 11.9 7.3 7.1 4.7 5.5 8.4 9.0 9.7 11.2 11.8 7.9 50.4
Boreal Unclassified 69.8 100.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3.4
Unspecified hardwoods 12.0 17.8 40.5 79.6 0.0 0.0 100.0 0.0 0.0 0.0 0.0 100.0
Other hardwoods 33.4 24.4 24.4 19.0 23.5 17.2 60.0 66.1 62.4 100.0 0.0 72.7
Maple 59.4 32.2 33.0 24.4 47.4 82.2 0.0 0.0 0.0 0.0 0.0 0.0
Birch 8.5 6.8 6.8 6.9 7.7 12.7 19.9 34.3 43.2 68.1 90.9 44.2
Poplar 7.0 5.1 5.3 4.0 4.1 5.9 10.8 18.5 35.6 46.5 48.0 45.6
Unspecified conifers 8.6 9.1 26.6 36.5 56.6 0.0 0.0 0.0 0.0 0.0 0.0 67.7
Cedar & other conifers 78.2 50.9 22.9 15.5 21.3 21.9 24.4 37.7 59.7 0.0 0.0 100.0
Larch 18.3 7.3 6.5 6.1 6.7 7.7 9.3 14.3 22.0 32.2 53.2 62.8
Fir 16.2 7.8 7.7 8.7 5.5 9.7 9.4 13.1 17.2 21.0 17.1 53.6
Pine 7.0 4.8 5.6 5.6 5.5 7.9 9.6 14.1 19.1 45.4 28.6 42.4
Spruce 8.0 3.7 2.9 2.5 2.2 2.2 2.3 4.0 8.2 16.4 10.2 19.1
Canada Unclassified 63.1 100.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.8
Unspecified hardwoods 8.3 12.0 17.7 50.3 22.8 65.5 95.1 0.0 0.0 0.0 0.0 80.0
Other hardwoods 22.2 12.8 12.0 10.0 13.7 23.5 38.5 47.9 58.3 94.2 53.2 72.7
Maple 17.4 8.7 5.6 5.8 6.2 11.7 29.0 35.5 74.5 0.0 78.1 82.2
Birch 7.2 5.3 5.1 4.9 5.1 9.6 14.6 26.1 39.4 56.2 62.9 41.8
Poplar 5.9 4.0 4.1 3.5 3.7 5.9 9.2 14.8 29.4 31.0 34.2 45.6
Unspecified conifers 7.0 7.5 17.7 31.1 28.9 0.0 0.0 0.0 0.0 0.0 0.0 60.7
Cedar & other conifers 25.4 15.6 14.6 12.7 9.5 12.3 14.0 28.6 25.9 21.9 8.8 100.0
Larch 16.3 6.7 6.1 5.8 7.9 8.6 10.2 14.2 24.3 38.6 26.1 62.8
Douglas-fir 26.3 24.8 20.5 20.6 13.2 11.5 12.2 12.6 15.3 17.7 14.4 0.0
Hemlock 21.6 16.3 15.9 20.3 17.0 17.0 14.8 21.5 16.7 24.8 6.9 0.0
Fir 10.3 5.2 4.4 5.5 4.7 7.8 7.2 9.2 10.2 10.8 6.7 51.0
Pine 6.5 4.1 4.7 4.5 4.7 5.6 6.3 8.9 13.6 16.8 13.0 40.7
Spruce 6.7 3.3 2.7 2.2 2.1 2.2 2.2 3.7 6.7 9.6 6.2 19.0
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.