Table 5.1a. Relative standard errors (%) of area of forest land by forest type, age class and terrestrial ecozone in Canada.
Terrestrial ecozone Forest type 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 Treed Mixedwood 21.9 15.2 14.1 10.9 8.5 7.6 14.6 17.5 30.6 70.2 74.1 0.0
Treed Coniferous 14.0 9.9 7.4 6.1 5.0 3.2 9.2 14.4 18.3 36.3 42.6 0.0
Treed Broadleaf 18.0 15.5 14.7 10.4 8.9 16.8 24.9 31.3 59.9 100.0 0.0 0.0
Non-treed 60.2 70.5 100.0 77.9 95.3 0.0 0.0 0.0 0.0 0.0 0.0 21.1
Taiga Shield Treed Mixedwood 22.3 17.6 22.4 18.6 12.8 19.9 7.6 51.4 0.0 0.0 0.0 0.0
Treed Coniferous 15.4 8.8 6.8 7.0 5.0 4.8 3.1 5.4 41.8 57.1 20.3 0.0
Treed Broadleaf 26.1 30.2 40.0 30.2 19.7 8.2 67.8 0.0 0.0 0.0 0.0 0.0
Non-treed 0.0 0.0 0.0 100.0 97.6 0.0 0.0 0.0 0.0 0.0 0.0 4.7
Boreal Shield Treed Mixedwood 4.6 3.7 3.5 3.8 3.8 8.0 10.8 28.7 46.8 67.3 78.5 0.0
Treed Coniferous 4.4 3.2 2.7 2.5 2.4 3.9 3.4 8.3 17.4 30.1 49.6 0.0
Treed Broadleaf 5.7 4.8 4.5 5.0 5.5 12.3 18.4 26.8 68.9 68.7 0.0 0.0
Non-treed 52.0 44.3 65.7 68.9 49.9 85.6 80.3 0.0 100.0 0.0 0.0 4.1
Atlantic Maritime Treed Mixedwood 6.9 5.8 5.7 5.2 7.4 13.1 45.1 52.7 0.0 98.7 0.0 0.0
Treed Coniferous 8.3 6.7 5.8 5.5 7.3 10.7 22.4 29.3 100.0 0.0 0.0 0.0
Treed Broadleaf 9.5 8.4 8.4 7.9 10.1 18.8 41.4 70.4 100.0 0.0 100.0 0.0
Non-treed 72.1 69.3 52.3 55.4 100.0 0.0 0.0 0.0 0.0 0.0 0.0 6.9
Mixedwood Plains Treed Mixedwood 21.4 14.7 9.7 14.8 22.8 47.8 42.6 100.0 0.0 0.0 0.0 0.0
Treed Coniferous 21.4 13.8 14.5 15.0 22.1 47.9 44.0 100.0 0.0 0.0 0.0 0.0
Treed Broadleaf 16.5 10.4 7.8 8.8 11.8 35.6 45.6 59.0 100.0 0.0 0.0 0.0
Non-treed 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 16.4
Boreal Plains Treed Mixedwood 10.4 8.8 8.6 5.8 6.9 8.8 10.8 15.4 22.0 42.3 97.8 0.0
Treed Coniferous 10.4 7.6 5.7 4.0 4.3 5.2 6.3 9.3 16.7 30.4 39.0 0.0
Treed Broadleaf 9.0 6.8 7.4 5.3 6.6 9.1 15.6 29.6 59.4 100.0 0.0 0.0
Non-treed 32.4 42.2 27.1 23.7 44.5 53.8 100.0 100.0 0.0 0.0 0.0 8.5
Prairies Treed Mixedwood 58.7 42.8 43.6 43.4 63.4 86.4 100.0 0.0 0.0 0.0 0.0 0.0
Treed Coniferous 60.5 94.8 76.7 48.9 73.4 85.2 100.0 90.7 0.0 0.0 0.0 0.0
Treed Broadleaf 13.2 10.6 18.0 26.2 54.9 66.9 0.0 100.0 0.0 0.0 0.0 0.0
Non-treed 41.2 75.4 85.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 27.8
Taiga Cordillera Treed Mixedwood 89.0 61.6 37.0 34.3 41.4 21.2 14.3 100.0 100.0 0.0 0.0 0.0
Treed Coniferous 80.4 29.3 17.8 13.6 16.4 10.8 7.7 33.6 49.0 0.0 0.0 0.0
Treed Broadleaf 87.1 41.3 40.4 46.8 17.7 100.0 0.0 0.0 0.0 0.0 0.0 0.0
Non-treed 0.0 0.0 0.0 0.0 100.0 100.0 100.0 0.0 0.0 0.0 0.0 70.1
Boreal Cordillera Treed Mixedwood 29.1 20.0 18.0 15.9 13.0 16.2 22.2 25.6 44.5 97.3 58.7 0.0
Treed Coniferous 30.8 18.3 10.0 9.3 8.1 6.9 8.4 9.8 11.8 20.1 10.2 0.0
Treed Broadleaf 39.7 26.9 17.6 19.0 19.0 29.4 49.1 64.0 48.1 100.0 68.0 0.0
Non-treed 0.0 100.0 48.0 40.0 35.9 40.6 34.5 34.1 72.1 0.0 0.0 24.7
Pacific Maritime Treed Mixedwood 47.5 26.6 19.7 27.3 31.0 32.9 57.7 44.4 44.0 100.0 48.2 0.0
Treed Coniferous 13.7 12.1 13.0 15.1 13.9 15.7 14.7 20.7 13.8 14.1 4.4 0.0
Treed Broadleaf 58.2 32.3 27.0 25.7 36.3 41.5 36.0 48.4 100.0 47.8 33.7 0.0
Non-treed 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 13.9
Montane Cordillera Treed Mixedwood 16.0 16.2 20.3 16.6 12.5 17.2 13.6 16.9 23.8 41.7 25.8 0.0
Treed Coniferous 8.2 7.8 11.1 8.0 6.0 5.3 4.7 5.3 6.3 7.3 4.8 0.0
Treed Broadleaf 40.8 24.2 20.8 18.8 16.7 22.2 18.0 28.6 69.3 68.1 59.7 0.0
Non-treed 89.7 100.1 0.0 99.9 100.1 70.2 91.1 100.0 0.0 100.0 0.0 8.1
Hudson Plains Treed Mixedwood 65.1 36.5 28.7 26.2 6.8 42.9 80.4 70.8 0.0 0.0 0.0 0.0
Treed Coniferous 35.3 10.4 8.0 10.1 10.6 7.9 8.4 24.2 63.1 100.0 0.0 0.0
Treed Broadleaf 59.2 29.8 51.1 41.5 72.0 79.3 58.4 0.0 0.0 0.0 0.0 0.0
Non-treed 0.0 0.0 100.0 100.0 100.0 100.0 0.0 0.0 0.0 0.0 0.0 15.9
Canada Treed Mixedwood 3.5 2.8 2.7 2.6 2.5 4.1 4.5 9.8 16.3 28.4 30.8 0.0
Treed Coniferous 3.1 2.3 1.9 1.7 1.7 1.7 1.8 3.0 4.7 5.9 3.1 0.0
Treed Broadleaf 4.1 3.2 3.1 3.0 3.3 4.9 10.2 14.9 29.5 31.3 28.9 0.0
Non-treed 23.9 33.0 23.4 25.7 25.7 34.1 33.9 32.8 71.9 100.0 0.0 2.6
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.