| IUCN category | Age (years) | Total | ||||||||||||||||||||||||||||||||
| 1-20 | 21-40 | 41-60 | 61-80 | 81-100 | 101-120 | 121-140 | 141-160 | 161-180 | 181-200 | 201+ | Other2 | |||||||||||||||||||||||
| NA | ±961.10 | ±1 266.57 | ±1 352.26 | ±1 424.30 | ±1 405.44 | ±1 575.64 | ±1 338.03 | ±759.97 | ±355.17 | ±235.09 | ±855.29 | ±824.92 | ±3 847.64 | |||||||||||||||||||||
| IA | ±2.10 | ±66.87 | ±45.60 | ±46.02 | ±53.22 | ±9.43 | ±57.16 | ±6.38 | ±8.05 | - | ±6.09 | ±0.80 | ±122.49 | |||||||||||||||||||||
| IB | ±165.33 | ±228.55 | ±234.73 | ±297.24 | ±218.42 | ±259.54 | ±254.57 | ±88.42 | ±83.99 | ±48.65 | ±277.05 | ±159.07 | ±722.63 | |||||||||||||||||||||
| II | ±131.67 | ±298.96 | ±368.19 | ±407.88 | ±423.11 | ±506.39 | ±432.19 | ±269.27 | ±145.63 | ±103.03 | ±455.79 | ±144.81 | ±1 167.88 | |||||||||||||||||||||
| III | ±25.26 | ±15.53 | ±16.54 | ±18.43 | ±29.55 | ±32.86 | ±23.34 | - | ±0.17 | - | ±43.63 | ±0.11 | ±76.77 | |||||||||||||||||||||
| IV | ±18.64 | ±36.85 | ±93.97 | ±117.89 | ±104.93 | ±32.13 | ±58.45 | ±18.79 | ±7.77 | ±0.32 | ±55.79 | ±96.69 | ±229.71 | |||||||||||||||||||||
| V | ±0.31 | - | ±4.14 | ±1.17 | - | ±6.56 | ±4.63 | - | - | - | - | - | ±9.12 | |||||||||||||||||||||
| VI | ±36.96 | ±12.29 | ±57.94 | ±51.54 | ±20.62 | ±133.51 | ±2.19 | ±0.91 | - | - | - | ±0.23 | ±160.57 | |||||||||||||||||||||
| OTHER | ±46.32 | ±129.50 | ±137.42 | ±112.79 | ±81.62 | ±169.18 | ±139.16 | ±6.13 | - | ±0.51 | - | ±37.74 | ±326.55 | |||||||||||||||||||||
| Total | ±986.35 | ±1 329.97 | ±1 432.72 | ±1 521.54 | ±1 491.24 | ±1 689.71 | ±1 438.24 | ±811.36 | ±393.11 | ±261.25 | ±1 010.48 | ±858.80 | ±4 110.55 | |||||||||||||||||||||
| Source: Canada's National Forest Inventory, combined remeasured (2007-2017) and projected (2006-2017 with NFI projection system) data (Version 3.1, October 2025) (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. | ||||||||||||||||||||||||||||||||||
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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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