Boreal zone | IUCN category | Age (years) | |||||||||||||||||||||||||||||||
1-20 | 21-40 | 41-60 | 61-80 | 81-100 | 101-120 | 121-140 | 141-160 | 161-180 | 181-200 | 201+ | Other2 | ||||||||||||||||||||||
Non-boreal | NA | 3.3 | 3.4 | 2.6 | 2.9 | 3.3 | 4.3 | 5.1 | 5.9 | 6.8 | 8.1 | 3.7 | 5.0 | ||||||||||||||||||||
Ia | 92.0 | 52.7 | 53.2 | 61.7 | 66.3 | 90.0 | 89.4 | 82.4 | 100.0 | 100.0 | 100.0 | 100.0 | |||||||||||||||||||||
Ib | 87.2 | 50.6 | 25.0 | 22.5 | 31.4 | 26.1 | 26.4 | 34.1 | 46.1 | 30.1 | 21.3 | 99.4 | |||||||||||||||||||||
II | 28.3 | 21.7 | 15.6 | 13.1 | 13.0 | 14.9 | 17.1 | 18.9 | 21.6 | 21.7 | 11.9 | 34.1 | |||||||||||||||||||||
III | 100.0 | 55.6 | 82.2 | 70.3 | 93.3 | 66.2 | 99.7 | 100.0 | 0.0 | 0.0 | 84.7 | 100.0 | |||||||||||||||||||||
IV | 55.9 | 53.4 | 39.8 | 36.4 | 36.0 | 61.9 | 99.9 | 70.9 | 100.0 | 0.0 | 99.9 | 90.7 | |||||||||||||||||||||
V | 100.0 | 100.0 | 100.0 | 90.3 | 100.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |||||||||||||||||||||
VI | 0.0 | 96.4 | 55.6 | 66.4 | 57.3 | 100.0 | 100.0 | 0.0 | 0.0 | 0.0 | 0.0 | 80.7 | |||||||||||||||||||||
Other | 100.0 | 100.0 | 99.8 | 2.6 | 100.0 | 71.3 | 100.0 | 0.0 | 0.0 | 0.0 | 0.0 | 100.0 | |||||||||||||||||||||
Boreal | NA | 3.6 | 3.2 | 2.5 | 1.9 | 1.4 | 1.7 | 2.7 | 5.4 | 8.6 | 12.6 | 7.9 | 2.8 | ||||||||||||||||||||
Ia | 53.2 | 62.3 | 56.9 | 44.5 | 39.6 | 68.4 | 84.0 | 0.0 | 0.0 | 0.0 | 0.0 | 98.3 | |||||||||||||||||||||
Ib | 38.7 | 25.3 | 19.8 | 12.2 | 13.7 | 13.3 | 23.3 | 31.8 | 27.6 | 51.2 | 20.5 | 26.0 | |||||||||||||||||||||
II | 25.9 | 20.9 | 9.9 | 9.1 | 9.4 | 11.3 | 20.8 | 20.1 | 27.8 | 34.9 | 43.8 | 40.4 | |||||||||||||||||||||
III | 48.8 | 37.0 | 24.7 | 27.7 | 20.3 | 17.8 | 76.1 | 0.0 | 0.0 | 0.0 | 0.0 | 99.9 | |||||||||||||||||||||
IV | 95.8 | 42.9 | 58.0 | 52.4 | 38.3 | 40.2 | 75.8 | 0.0 | 0.0 | 0.0 | 54.0 | 82.5 | |||||||||||||||||||||
V | 100.0 | 87.3 | 76.7 | 87.3 | 66.6 | 88.7 | 100.0 | 0.0 | 0.0 | 0.0 | 0.0 | 100.0 | |||||||||||||||||||||
VI | 78.5 | 72.8 | 53.2 | 74.0 | 79.5 | 69.7 | 79.5 | 0.0 | 100.0 | 0.0 | 0.0 | 93.7 | |||||||||||||||||||||
Other | 0.0 | 0.0 | 100.0 | 51.6 | 37.3 | 76.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |||||||||||||||||||||
Canada | NA | 2.6 | 2.5 | 1.9 | 1.6 | 1.3 | 1.6 | 2.4 | 4.1 | 5.5 | 6.8 | 3.4 | 2.4 | ||||||||||||||||||||
Ia | 47.3 | 58.5 | 38.9 | 38.6 | 34.9 | 65.1 | 61.2 | 82.4 | 100.0 | 100.0 | 100.0 | 96.7 | |||||||||||||||||||||
Ib | 38.4 | 22.7 | 15.9 | 10.8 | 12.6 | 11.9 | 17.8 | 24.9 | 25.7 | 28.0 | 14.8 | 25.3 | |||||||||||||||||||||
II | 19.1 | 15.3 | 8.5 | 7.5 | 7.6 | 9.0 | 13.3 | 14.0 | 17.2 | 18.9 | 11.5 | 26.4 | |||||||||||||||||||||
III | 48.7 | 31.0 | 27.5 | 25.8 | 20.2 | 17.8 | 66.8 | 100.0 | 0.0 | 0.0 | 84.7 | 71.2 | |||||||||||||||||||||
IV | 48.4 | 37.8 | 32.8 | 34.6 | 26.4 | 38.2 | 70.3 | 70.9 | 100.0 | 0.0 | 62.1 | 65.4 | |||||||||||||||||||||
V | 98.7 | 85.9 | 94.8 | 78.8 | 64.4 | 88.7 | 100.0 | 0.0 | 0.0 | 0.0 | 0.0 | 100.0 | |||||||||||||||||||||
VI | 78.5 | 60.9 | 41.8 | 57.6 | 61.9 | 68.9 | 80.6 | 0.0 | 100.0 | 0.0 | 0.0 | 79.2 | |||||||||||||||||||||
Other | 100.0 | 100.0 | 81.8 | 51.6 | 35.2 | 68.9 | 100.0 | 0.0 | 0.0 | 0.0 | 0.0 | 100.0 | |||||||||||||||||||||
Source: Canada's National Forest Inventory, revised 2006 baseline (Version 3, December 2013) (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 IUCN: International Union for Conservation of Nature (http://www.iucn.org). Data obtained from the Canadian Protected and Conserved Areas Database (CPCAD) (https://www.canada.ca/en/environment-climate-change/services/national-wildlife-areas/protected-conserved-areas-database.html). 2 Missing or unknown age class. |
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