Table 18.1a. Relative standard errors (%) of total above-ground biomass on forest land by species group, age class and terrestrial ecozone in Canada.
Terrestrial ecozone 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
Taiga Plains Unclassified 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 22.3
Birch 21.0 25.0 21.9 17.5 20.0 38.4 37.4 53.8 52.2 0.0 90.8 0.0
Poplar 26.9 16.8 16.3 11.7 8.4 16.3 20.6 28.0 55.3 74.8 0.0 0.0
Larch 42.2 20.5 20.1 15.4 15.6 16.3 27.5 43.3 47.8 59.1 85.2 0.0
Fir 0.0 100.0 75.5 69.3 80.1 90.5 100.0 0.0 0.0 0.0 0.0 0.0
Pine 23.9 18.7 22.2 18.8 16.6 29.4 26.5 44.0 87.7 100.0 100.0 0.0
Spruce 25.7 13.3 10.4 7.1 6.3 3.5 10.3 14.3 18.5 42.1 34.9 0.0
Taiga Shield Unclassified 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4.7
Other hardwoods 0.0 0.0 100.0 55.9 30.4 19.6 94.7 0.0 0.0 0.0 0.0 0.0
Maple 0.0 0.0 100.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Birch 22.5 25.6 25.5 36.0 23.3 45.1 100.1 0.0 0.0 0.0 0.0 0.0
Poplar 39.8 27.9 46.1 30.7 44.6 8.6 78.3 0.0 0.0 0.0 0.0 0.0
Unspecified conifers 0.0 0.0 100.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Larch 61.2 15.6 10.7 22.1 33.6 29.8 57.3 45.2 52.5 62.7 59.9 0.0
Fir 100.0 44.0 69.5 37.2 44.3 28.3 15.9 51.6 85.3 0.0 0.0 0.0
Pine 18.1 15.5 19.4 17.2 25.6 39.4 35.9 100.0 0.0 0.0 0.0 0.0
Spruce 25.0 12.3 8.6 8.2 5.7 5.2 3.7 5.7 35.8 60.4 20.4 0.0
Boreal Shield Unclassified 63.1 100.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4.3
Unspecified hardwoods 9.5 15.5 27.8 46.1 28.5 100.0 95.1 0.0 0.0 0.0 0.0 100.0
Other hardwoods 32.1 20.0 15.7 14.5 18.4 29.5 46.6 52.0 64.8 0.0 0.0 72.7
Maple 30.5 14.5 9.0 10.2 8.9 17.0 36.0 41.9 84.4 0.0 0.0 100.0
Birch 9.9 6.4 5.7 6.1 6.2 15.2 17.3 47.3 79.1 68.0 0.0 49.0
Poplar 7.9 5.7 5.1 5.5 6.1 14.0 26.0 35.3 0.0 71.1 100.0 45.4
Unspecified conifers 7.9 8.6 23.2 35.8 38.5 0.0 0.0 0.0 0.0 0.0 0.0 67.7
Cedar & other conifers 72.5 31.9 16.9 16.6 12.8 17.0 19.6 36.1 56.2 0.0 0.0 100.0
Larch 19.8 10.3 9.8 9.5 11.6 11.9 14.5 22.4 74.5 83.5 0.0 62.7
Hemlock 0.0 81.7 34.4 32.0 20.0 53.3 39.2 100.0 100.0 0.0 0.0 0.0
Fir 14.5 6.8 5.9 7.6 5.1 13.2 13.8 35.9 49.6 64.7 88.9 61.4
Pine 8.1 5.5 5.4 5.8 6.1 13.6 15.6 33.5 67.8 100.0 0.0 47.8
Spruce 8.7 4.4 3.5 3.2 2.9 4.5 3.7 10.1 19.1 36.5 66.3 21.7
Atlantic Maritime Unclassified 100.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 7.1
Unspecified hardwoods 13.4 18.4 31.5 63.9 48.7 100.0 0.0 0.0 0.0 0.0 0.0 100.5
Other hardwoods 31.5 14.9 48.5 38.3 53.4 98.7 0.0 0.0 0.0 0.0 0.0 0.0
Maple 21.6 12.8 9.3 7.7 10.2 18.2 36.8 85.6 100.0 0.0 100.0 100.5
Birch 20.1 13.7 12.8 13.6 14.3 22.1 100.0 0.0 0.0 0.0 0.0 0.0
Poplar 16.7 13.8 11.5 11.2 19.4 29.1 0.0 100.0 0.0 0.0 0.0 0.0
Unspecified conifers 14.1 13.4 21.9 41.7 43.8 0.0 0.0 0.0 0.0 0.0 0.0 75.8
Cedar & other conifers 45.0 35.3 23.6 22.1 15.6 19.4 32.2 80.2 0.0 0.0 0.0 0.0
Larch 37.7 23.3 16.9 22.6 27.1 53.5 100.0 0.0 0.0 0.0 0.0 0.0
Hemlock 100.0 100.0 47.9 34.4 46.0 75.0 100.3 98.7 0.0 0.0 0.0 0.0
Fir 15.9 8.3 6.5 8.5 12.8 17.3 57.3 39.5 0.0 0.0 0.0 0.0
Pine 43.0 25.0 27.9 24.8 23.2 43.9 57.7 0.0 0.0 0.0 0.0 0.0
Spruce 14.6 9.6 7.0 5.8 8.4 13.9 35.3 41.6 100.0 98.7 0.0 100.0
Mixedwood Plains Unclassified 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 16.0
Unspecified hardwoods 26.6 22.6 30.4 59.5 40.5 100.2 0.0 0.0 0.0 0.0 0.0 0.0
Other hardwoods 46.6 15.5 14.2 13.9 20.2 46.2 68.7 0.0 0.0 0.0 0.0 0.0
Maple 40.1 14.3 10.5 10.8 15.4 34.9 40.3 57.7 100.0 0.0 0.0 0.0
Birch 38.3 21.4 19.2 42.6 63.2 98.5 0.0 0.0 0.0 0.0 0.0 0.0
Poplar 27.7 17.7 14.7 22.0 51.5 64.9 0.0 0.0 0.0 0.0 0.0 0.0
Unspecified conifers 39.6 37.2 44.7 87.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Cedar & other conifers 63.6 23.8 15.9 18.1 25.8 43.5 53.0 100.0 0.0 0.0 0.0 0.0
Larch 56.3 41.0 40.6 50.0 48.9 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Hemlock 0.0 0.0 46.3 64.3 32.9 71.9 0.0 0.0 0.0 0.0 0.0 0.0
Fir 59.2 36.0 26.7 38.8 99.9 82.7 100.0 0.0 0.0 0.0 0.0 0.0
Pine 60.2 21.4 22.1 23.1 40.9 81.2 70.8 100.0 0.0 0.0 0.0 0.0
Spruce 38.0 22.9 21.7 32.1 50.4 0.0 84.3 0.0 0.0 0.0 0.0 0.0
Boreal Plains Unclassified 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 8.4
Unspecified hardwoods 0.0 100.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Other hardwoods 89.5 38.6 49.8 89.2 0.0 100.0 0.0 0.0 100.0 0.0 0.0 0.0
Maple 100.0 43.3 91.1 50.6 100.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Birch 27.6 19.7 17.2 15.5 26.1 47.5 52.3 82.9 0.0 0.0 0.0 100.0
Poplar 10.0 7.2 8.3 5.2 6.2 8.0 12.3 24.9 45.0 70.7 0.0 91.9
Cedar & other conifers 73.4 100.0 100.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Larch 59.5 15.7 11.4 9.5 9.3 11.3 13.0 18.2 28.9 51.0 72.6 0.0
Fir 100.0 49.4 35.1 48.4 60.3 47.2 68.9 95.6 100.0 100.0 85.3 0.0
Pine 16.0 10.7 13.1 10.4 10.8 12.5 16.3 21.9 40.0 100.0 100.0 100.0
Spruce 20.3 9.5 7.1 4.7 5.4 5.9 6.5 10.2 15.2 41.6 39.1 88.5
Prairies Unclassified 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 28.4
Other hardwoods 77.4 71.2 99.9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Maple 32.1 46.1 78.5 97.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Birch 53.7 43.7 81.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Poplar 14.7 10.9 20.2 27.2 54.3 79.3 0.0 100.0 0.0 0.0 0.0 0.0
Larch 0.0 63.6 100.0 100.0 100.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Douglas-fir 0.0 0.0 100.0 100.0 100.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Fir 100.0 100.0 0.0 100.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Pine 76.6 93.6 81.0 43.8 70.9 100.0 0.0 0.0 0.0 0.0 0.0 0.0
Spruce 86.1 90.8 55.4 46.4 73.7 72.8 100.0 95.9 0.0 0.0 0.0 0.0
Taiga Cordillera Unclassified 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Birch 74.6 64.7 40.3 34.1 18.0 65.9 0.0 0.0 0.0 0.0 0.0 100.0
Poplar 99.9 88.7 41.5 67.2 60.5 78.4 100.0 0.0 0.0 0.0 0.0 0.0
Larch 99.9 37.9 42.7 85.3 77.8 91.3 91.8 75.0 99.9 0.0 0.0 0.0
Fir 0.0 89.1 49.8 42.3 30.7 37.0 37.5 51.2 99.3 0.0 0.0 100.0
Pine 0.0 99.9 62.8 68.6 67.4 77.7 100.0 0.0 0.0 0.0 0.0 0.0
Spruce 72.2 47.6 23.9 16.0 20.4 12.1 8.0 37.5 51.6 0.0 0.0 95.7
Boreal Cordillera Unclassified 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 38.3
Birch 37.2 53.4 48.2 25.9 56.7 51.3 66.0 47.6 71.4 0.0 0.0 72.1
Poplar 31.2 22.3 23.8 26.2 17.6 24.4 50.7 60.0 36.1 100.0 52.5 75.0
Larch 86.1 42.6 60.1 36.8 42.4 39.9 38.9 68.0 0.0 0.0 0.0 0.0
Fir 83.8 49.7 37.4 46.2 21.5 20.1 19.4 18.8 22.6 35.2 21.3 93.2
Pine 43.2 39.3 23.4 26.0 18.1 15.3 18.9 25.5 26.9 60.3 31.9 93.6
Spruce 40.1 26.5 19.9 12.7 10.8 8.9 10.0 11.2 15.4 31.8 14.2 37.1
Pacific Maritime Unclassified 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 14.0
Unspecified hardwoods 100.0 0.0 0.0 100.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Other hardwoods 73.6 39.2 22.6 27.1 39.0 45.8 81.5 100.2 100.0 100.0 53.0 0.0
Maple 100.0 49.0 64.6 38.0 86.2 99.3 100.0 0.0 0.0 0.0 84.9 0.0
Birch 92.7 60.8 80.3 70.1 55.3 51.9 79.7 99.6 0.0 0.0 100.0 0.0
Poplar 0.0 67.5 41.4 55.2 39.4 42.6 40.2 45.6 63.0 54.0 89.6 0.0
Cedar & other conifers 26.9 28.0 40.8 42.3 37.9 36.2 31.1 45.9 30.4 24.2 9.0 0.0
Douglas-fir 30.0 32.2 23.7 25.1 27.2 27.9 39.3 33.9 40.9 36.9 27.8 0.0
Hemlock 21.9 16.2 16.9 23.4 22.6 21.4 17.3 29.9 18.8 19.4 6.6 0.0
Fir 29.6 25.9 36.2 42.1 33.6 39.3 48.0 28.5 35.2 34.1 11.4 0.0
Pine 86.8 68.1 59.0 40.2 50.7 41.9 49.4 84.2 84.4 42.8 27.2 0.0
Spruce 0.0 49.0 55.1 73.2 47.2 45.1 52.2 50.9 47.2 50.6 20.7 0.0
Montane Cordillera Unclassified 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 8.2
Other hardwoods 0.0 0.0 93.7 0.0 0.0 0.0 0.0 99.9 0.0 99.9 0.0 0.0
Birch 57.1 46.1 47.4 37.6 27.0 39.9 34.5 49.9 88.5 99.3 100.0 0.0
Poplar 38.3 23.1 22.8 18.6 15.6 27.3 15.8 27.1 39.6 58.9 47.4 0.0
Cedar & other conifers 39.7 55.5 41.9 42.0 37.1 38.8 36.1 30.4 48.4 41.8 22.1 0.0
Larch 57.4 48.6 68.6 31.7 29.1 28.4 27.0 39.3 39.5 50.9 28.0 0.0
Douglas-fir 42.5 25.4 23.2 16.5 14.4 12.3 11.6 13.5 15.8 19.7 13.9 0.0
Hemlock 59.3 49.5 53.0 51.7 32.0 31.1 31.8 30.5 34.4 45.1 18.0 0.0
Fir 50.5 32.4 23.4 20.6 17.0 14.6 10.4 11.6 12.1 11.9 8.5 0.0
Pine 26.6 11.3 18.6 11.3 8.8 8.2 8.4 10.8 17.4 17.3 14.6 0.0
Spruce 31.4 20.1 21.1 14.9 11.2 9.9 9.1 8.8 10.0 11.0 7.9 0.0
Hudson Plains Unclassified 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 16.3
Other hardwoods 0.0 100.0 0.0 0.0 0.0 100.0 0.0 0.0 0.0 0.0 0.0 0.0
Birch 48.7 70.8 71.7 77.6 100.0 61.1 0.0 0.0 0.0 0.0 0.0 0.0
Poplar 56.3 60.3 36.8 45.1 77.8 53.2 61.1 0.0 0.0 0.0 0.0 0.0
Unspecified conifers 0.0 0.0 100.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Cedar & other conifers 0.0 0.0 100.0 100.0 100.0 100.0 100.0 100.0 0.0 0.0 0.0 0.0
Larch 87.9 17.8 17.6 27.1 31.2 46.7 31.3 37.0 87.4 100.0 0.0 0.0
Fir 100.0 36.8 37.4 52.7 100.0 71.4 0.0 0.0 0.0 0.0 0.0 0.0
Pine 38.1 24.7 27.1 66.5 73.7 66.2 0.0 0.0 0.0 0.0 0.0 0.0
Spruce 52.6 14.6 11.0 12.0 9.4 8.6 17.4 27.0 76.3 100.0 0.0 0.0
Canada Unclassified 63.0 100.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.8
Unspecified hardwoods 8.2 12.1 17.6 50.3 23.0 65.6 95.1 0.0 0.0 0.0 0.0 80.0
Other hardwoods 22.5 13.0 12.1 10.0 13.9 23.9 39.1 48.0 58.0 94.5 53.0 72.7
Maple 17.4 8.8 5.7 6.0 6.5 11.8 29.2 35.5 74.7 0.0 78.4 82.2
Birch 7.2 5.2 5.1 4.9 5.2 11.0 14.5 26.2 39.2 56.2 62.7 41.8
Poplar 5.9 3.8 4.0 3.5 3.7 5.9 9.0 14.7 29.3 31.3 34.8 45.7
Unspecified conifers 6.8 7.3 17.6 31.1 29.0 0.0 0.0 0.0 0.0 0.0 0.0 60.6
Cedar & other conifers 25.0 15.6 14.9 13.0 9.7 12.4 14.0 29.2 25.9 21.9 8.3 100.0
Larch 16.3 6.6 6.0 5.8 7.8 8.6 10.2 14.2 24.1 38.4 26.0 62.7
Douglas-fir 26.4 25.1 20.5 20.7 13.4 11.7 12.5 12.6 15.5 17.9 14.7 0.0
Hemlock 21.4 15.9 15.7 20.2 17.0 16.9 14.7 21.6 16.5 24.1 6.2 0.0
Fir 10.2 5.0 4.3 5.3 4.6 7.7 7.2 9.1 10.2 10.8 6.7 50.7
Pine 6.4 4.1 4.7 4.5 4.6 5.6 6.3 8.9 13.6 16.7 12.9 40.8
Spruce 6.7 3.3 2.7 2.2 2.0 2.1 2.2 3.6 6.7 9.4 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, July 2021) (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. These non-inventoried areas total 262,189.89 thousand ha.
1 Missing or unknown age class.