Table 14.1a. Relative standard errors (%) of area of 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 21.1
Birch 20.5 21.3 20.5 15.3 18.2 31.6 32.4 47.7 50.6 0.0 92.9 0.0
Poplar 22.6 15.2 14.8 9.8 8.5 15.2 19.9 27.9 53.7 75.2 0.0 0.0
Larch 29.9 18.3 13.4 16.7 13.5 18.2 27.6 40.7 50.5 61.6 66.7 0.0
Fir 0.0 100.0 71.2 81.1 72.3 83.3 100.0 0.0 0.0 0.0 0.0 0.0
Pine 20.2 13.9 15.7 14.6 18.3 23.4 25.5 45.0 88.1 100.0 100.0 0.0
Spruce 20.8 12.0 8.5 6.2 5.2 3.1 9.1 14.5 17.9 38.6 40.7 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 52.0 26.1 24.8 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 24.2 29.3 29.7 26.6 22.7 46.6 100.1 0.0 0.0 0.0 0.0 0.0
Poplar 44.9 24.6 38.6 31.7 37.5 8.6 65.9 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 38.8 18.4 10.0 17.2 31.1 32.4 51.0 55.5 48.7 57.4 62.6 0.0
Fir 100.0 45.5 61.3 35.3 43.6 28.9 16.0 48.9 84.9 0.0 0.0 0.0
Pine 17.0 12.7 14.8 15.6 23.7 34.6 36.0 100.0 0.0 0.0 0.0 0.0
Spruce 26.6 10.3 7.4 7.8 5.1 4.8 3.0 5.4 46.7 60.3 20.4 0.0
Boreal Shield Unclassified 63.0 100.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4.2
Unspecified hardwoods 8.2 12.8 24.9 42.3 28.0 100.0 80.2 0.0 0.0 0.0 0.0 100.0
Other hardwoods 33.4 18.4 14.5 14.6 18.4 29.9 42.2 54.5 75.4 0.0 0.0 72.7
Maple 24.3 11.1 8.3 9.5 8.7 17.1 34.0 40.9 86.6 0.0 0.0 100.0
Birch 8.0 5.7 5.3 5.8 6.0 14.1 16.8 46.2 84.9 68.1 0.0 49.0
Poplar 6.4 5.2 4.9 5.5 6.2 14.4 22.9 32.6 0.0 71.5 100.0 45.4
Unspecified conifers 7.4 8.1 20.8 37.0 36.7 0.0 0.0 0.0 0.0 0.0 0.0 67.7
Cedar & other conifers 57.6 27.5 15.1 13.5 11.6 14.9 19.4 33.2 59.0 0.0 0.0 100.0
Larch 17.8 10.4 8.1 8.6 10.1 12.4 16.7 25.0 57.0 76.4 0.0 62.7
Hemlock 0.0 88.0 31.7 30.7 19.8 51.2 38.1 100.0 100.0 0.0 0.0 0.0
Fir 12.1 6.5 5.7 7.2 5.2 13.6 13.1 34.7 58.0 65.2 85.5 61.4
Pine 6.0 5.0 5.2 5.5 6.0 12.0 13.6 34.1 67.7 100.0 0.0 47.8
Spruce 7.2 4.1 3.0 2.7 2.6 4.1 3.5 8.6 18.4 31.7 68.3 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 6.9
Unspecified hardwoods 11.8 14.4 26.0 55.2 44.7 100.0 0.0 0.0 0.0 0.0 0.0 100.5
Other hardwoods 19.7 13.5 40.8 33.2 50.6 98.7 0.0 0.0 0.0 0.0 0.0 0.0
Maple 14.5 10.3 8.4 6.9 9.4 17.5 35.2 80.7 100.0 0.0 100.0 100.5
Birch 11.9 13.1 12.8 12.8 14.6 21.7 100.0 0.0 0.0 0.0 0.0 0.0
Poplar 18.1 12.1 11.5 10.5 20.8 28.0 0.0 100.0 0.0 0.0 0.0 0.0
Unspecified conifers 11.3 12.6 21.9 39.1 37.6 0.0 0.0 0.0 0.0 0.0 0.0 75.8
Cedar & other conifers 42.7 31.3 22.9 21.0 15.4 19.1 31.9 71.7 0.0 0.0 0.0 0.0
Larch 29.3 20.2 17.1 21.1 26.3 50.6 100.0 0.0 0.0 0.0 0.0 0.0
Hemlock 100.0 100.0 48.8 36.9 45.6 68.2 100.3 98.7 0.0 0.0 0.0 0.0
Fir 14.1 7.5 6.4 8.0 12.0 17.9 54.0 38.1 0.0 0.0 0.0 0.0
Pine 32.1 25.3 28.6 24.8 20.7 39.3 50.9 0.0 0.0 0.0 0.0 0.0
Spruce 10.2 8.6 7.5 5.7 8.0 12.7 30.7 41.1 100.0 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 16.4
Unspecified hardwoods 29.0 22.3 29.9 57.6 49.5 100.2 0.0 0.0 0.0 0.0 0.0 0.0
Other hardwoods 28.5 13.3 14.8 13.0 19.9 42.8 72.8 0.0 0.0 0.0 0.0 0.0
Maple 30.5 14.4 9.4 10.3 14.3 34.8 38.7 59.0 100.0 0.0 0.0 0.0
Birch 34.3 20.0 19.5 39.3 62.0 98.8 0.0 0.0 0.0 0.0 0.0 0.0
Poplar 23.3 18.3 14.1 20.7 52.0 74.4 0.0 0.0 0.0 0.0 0.0 0.0
Unspecified conifers 42.8 37.0 47.8 88.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Cedar & other conifers 39.0 23.2 15.3 17.5 25.8 45.7 56.6 100.0 0.0 0.0 0.0 0.0
Larch 54.2 34.7 39.8 52.2 56.6 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Hemlock 0.0 0.0 45.1 59.3 31.7 70.1 0.0 0.0 0.0 0.0 0.0 0.0
Fir 57.1 35.9 26.2 37.6 99.9 83.0 100.0 0.0 0.0 0.0 0.0 0.0
Pine 26.4 16.5 19.7 21.1 40.2 74.7 70.9 100.0 0.0 0.0 0.0 0.0
Spruce 28.9 22.1 23.2 33.8 43.7 0.0 70.6 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 8.5
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 75.1 36.4 47.8 91.8 0.0 100.0 0.0 0.0 100.0 0.0 0.0 0.0
Maple 100.0 46.5 87.1 47.4 100.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Birch 24.7 21.7 16.1 14.3 24.2 43.4 44.2 89.8 0.0 0.0 0.0 100.0
Poplar 8.2 6.5 7.3 4.9 6.0 7.8 11.9 23.2 42.0 70.8 0.0 91.9
Cedar & other conifers 71.9 100.0 100.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Larch 29.7 13.1 9.6 7.9 9.0 11.4 11.9 18.9 38.4 52.8 69.9 0.0
Fir 100.0 46.8 32.9 43.4 54.1 48.3 72.6 97.6 100.0 100.0 84.0 0.0
Pine 11.9 9.7 12.8 9.0 9.9 12.3 15.2 20.9 40.3 100.0 100.0 100.0
Spruce 13.5 8.9 6.3 4.3 4.6 5.4 6.1 9.9 14.4 32.6 41.2 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 27.8
Other hardwoods 70.5 72.7 97.7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Maple 36.7 49.6 84.7 97.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Birch 46.1 44.3 68.6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Poplar 13.2 10.6 18.1 25.0 52.5 72.7 0.0 100.0 0.0 0.0 0.0 0.0
Larch 0.0 58.7 100.0 100.0 100.0 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 84.2 88.3 88.2 43.8 59.5 100.0 0.0 0.0 0.0 0.0 0.0 0.0
Spruce 64.0 90.7 60.4 44.5 66.9 69.6 100.0 90.7 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 0.0 100.0
Birch 58.5 59.2 43.2 46.2 17.7 68.5 0.0 0.0 0.0 0.0 0.0 100.0
Poplar 99.9 52.2 35.7 45.8 68.3 79.9 100.0 0.0 0.0 0.0 0.0 0.0
Larch 99.9 41.5 40.6 87.8 62.1 80.3 95.1 90.9 99.9 0.0 0.0 0.0
Fir 0.0 75.3 49.4 31.6 29.5 33.1 37.6 49.5 99.7 0.0 0.0 100.0
Pine 0.0 99.9 62.7 67.0 64.6 72.0 100.0 0.0 0.0 0.0 0.0 0.0
Spruce 87.3 38.7 18.2 14.9 17.3 11.4 7.9 36.3 52.1 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 34.7
Birch 38.0 26.4 21.0 31.3 47.3 48.9 64.1 63.0 72.7 0.0 0.0 72.1
Poplar 33.9 25.8 16.5 16.2 17.2 23.0 41.4 52.6 39.1 100.0 51.3 75.0
Larch 98.9 43.8 36.7 34.3 41.2 39.6 38.8 62.1 0.0 0.0 0.0 0.0
Fir 86.1 59.9 27.0 27.3 18.0 17.9 18.7 16.8 19.3 26.0 15.4 86.4
Pine 39.6 26.3 15.8 18.1 16.1 14.3 18.4 24.4 27.3 58.4 30.4 93.6
Spruce 36.3 21.8 12.1 10.7 8.7 7.8 9.6 11.3 14.4 32.9 13.4 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 13.9
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 68.4 29.0 21.9 24.9 41.0 37.0 72.2 100.2 100.0 100.0 39.9 0.0
Maple 100.0 49.9 60.0 42.8 73.3 99.3 100.0 0.0 0.0 0.0 81.4 0.0
Birch 90.2 62.0 75.9 70.7 55.5 51.0 81.8 99.5 0.0 0.0 100.0 0.0
Poplar 0.0 56.7 41.6 52.1 41.0 46.2 37.7 46.7 65.8 53.8 86.9 0.0
Cedar & other conifers 23.2 29.9 37.1 44.1 35.6 28.8 31.4 32.8 29.4 22.7 9.0 0.0
Douglas-fir 24.3 28.9 21.8 23.0 25.5 25.6 33.7 38.4 42.2 39.7 24.2 0.0
Hemlock 18.5 15.8 15.6 18.7 18.7 19.4 15.8 24.0 15.6 20.0 6.2 0.0
Fir 25.6 22.4 35.0 35.9 35.0 31.0 32.1 27.4 31.5 30.2 11.1 0.0
Pine 86.8 57.4 58.0 38.5 46.8 37.4 46.9 76.7 58.8 38.9 32.4 0.0
Spruce 0.0 35.6 43.7 83.9 44.6 38.4 57.3 50.6 45.8 48.1 21.1 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 8.1
Other hardwoods 0.0 0.0 77.3 0.0 0.0 0.0 0.0 99.9 0.0 99.9 0.0 0.0
Birch 34.3 50.3 42.7 29.6 26.5 41.3 34.4 48.3 80.2 98.2 100.0 0.0
Poplar 24.3 20.2 18.4 17.2 14.8 19.7 15.5 25.9 43.1 49.4 44.9 0.0
Cedar & other conifers 40.6 51.6 38.3 44.8 37.3 39.6 34.1 29.6 41.8 42.8 21.2 0.0
Larch 44.9 42.3 58.7 27.3 26.6 26.9 26.1 36.3 40.8 52.6 27.0 0.0
Douglas-fir 29.7 21.2 21.2 15.6 12.5 11.2 10.9 12.0 16.9 20.0 14.0 0.0
Hemlock 62.9 42.9 48.0 46.5 28.9 29.6 32.5 32.5 32.8 47.8 17.9 0.0
Fir 29.4 19.8 20.0 16.3 14.0 12.2 9.8 10.8 10.5 11.9 7.9 0.0
Pine 10.1 9.8 17.5 11.4 8.5 8.4 8.1 10.3 15.1 18.3 14.4 0.0
Spruce 12.6 13.5 19.1 14.6 10.5 9.2 8.3 8.6 9.4 10.2 7.7 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 15.9
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 50.6 48.5 82.0 58.2 100.0 59.1 0.0 0.0 0.0 0.0 0.0 0.0
Poplar 59.3 44.6 36.0 40.3 74.5 50.7 58.4 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 69.4 22.9 12.9 22.8 27.1 49.6 33.5 38.3 93.4 100.0 0.0 0.0
Fir 100.0 35.9 43.4 51.8 100.0 79.0 0.0 0.0 0.0 0.0 0.0 0.0
Pine 35.3 23.8 28.0 56.6 72.2 49.4 0.0 0.0 0.0 0.0 0.0 0.0
Spruce 44.7 11.0 8.3 10.2 5.7 7.8 8.4 28.6 80.5 100.0 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 2.6
Unspecified hardwoods 7.0 9.8 15.7 44.9 23.2 65.6 80.2 0.0 0.0 0.0 0.0 80.0
Other hardwoods 16.1 8.5 9.2 8.8 11.7 17.1 32.7 51.5 66.3 85.6 39.9 72.7
Maple 12.0 7.0 5.3 5.5 6.2 11.8 27.2 34.2 76.9 0.0 71.5 82.2
Birch 6.4 4.7 4.6 4.7 5.0 10.6 13.2 25.3 34.7 57.8 72.1 39.5
Poplar 4.5 3.4 3.6 3.2 3.6 4.8 8.5 14.3 24.4 29.2 33.4 45.0
Unspecified conifers 6.2 7.0 16.1 27.4 26.3 0.0 0.0 0.0 0.0 0.0 0.0 60.6
Cedar & other conifers 18.1 14.6 9.8 9.6 8.4 10.4 13.6 20.7 25.0 21.5 8.3 100.0
Larch 12.2 6.4 4.7 5.2 5.9 7.6 9.2 16.7 23.0 28.5 24.0 62.7
Douglas-fir 18.9 19.3 16.4 14.9 11.2 10.3 10.4 11.5 15.7 17.9 12.2 0.0
Hemlock 17.9 15.3 14.0 15.0 12.5 15.3 13.8 19.1 14.3 24.4 5.8 0.0
Fir 8.7 4.6 4.1 4.9 4.4 7.2 6.9 8.3 8.8 10.4 5.9 48.3
Pine 4.4 3.6 4.2 3.9 4.1 5.4 5.9 8.6 12.3 16.3 12.4 41.2
Spruce 4.8 2.9 2.2 1.9 1.8 1.9 1.9 3.5 6.4 9.4 6.3 20.0
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.