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) Total
1-20 21-40 41-60 61-80 81-100 101-120 121-140 141-160 161-180 181-200 201+ Other1
Taiga Plains Non-treed 60.18 70.48 99.95 77.95 95.26 - - - - - - 31.94 31.11
Treed Mixedwood 22.52 14.93 14.52 10.45 11.13 6.26 13.97 17.76 30.58 70.16 74.10 - 4.12
Treed Broadleaf 17.95 15.60 14.80 12.15 8.13 17.24 24.25 31.31 59.90 99.99 - - 5.10
Treed Coniferous 13.95 9.31 7.10 6.01 6.14 2.59 8.95 14.25 18.13 33.09 42.09 - 1.97
Subtotal 10.04 7.18 6.06 4.90 4.61 2.40 7.54 11.72 16.20 30.24 38.00 31.94 1.70
Taiga Shield Treed Broadleaf 26.99 28.51 41.31 32.37 27.31 7.93 67.78 - - - - - 6.99
Treed Mixedwood 22.56 17.45 22.46 24.87 17.84 13.72 7.41 51.43 - - - - 5.44
Non-treed - - 99.98 85.21 97.63 - - - - - - 4.71 4.73
Treed Coniferous 15.71 8.73 6.79 7.36 5.89 4.73 2.97 3.77 40.54 57.06 20.31 - 1.80
Subtotal 11.90 7.88 6.58 7.05 5.72 4.22 2.84 3.77 40.54 57.06 20.31 4.71 1.61
Boreal Shield Non-treed 35.61 60.24 38.74 40.92 41.81 45.51 69.16 92.77 97.89 100.00 100.00 4.27 4.17
Treed Broadleaf 5.77 4.84 4.48 5.16 5.43 12.46 18.44 26.82 68.88 68.70 - - 2.24
Treed Mixedwood 4.64 3.70 3.50 3.72 3.88 7.85 10.89 27.93 47.41 67.30 78.57 - 1.67
Treed Coniferous 4.34 3.01 2.69 2.49 2.38 3.88 3.40 7.98 17.46 30.07 49.55 - 1.12
Subtotal 2.83 2.22 1.99 1.93 1.90 3.45 3.27 7.55 16.00 24.97 43.73 4.27 0.86
Atlantic Maritime Non-treed 68.90 69.28 52.11 55.42 99.95 - - - - - - 6.89 6.81
Treed Broadleaf 9.58 8.33 8.36 7.87 9.99 18.70 41.26 70.42 99.99 - 99.99 - 3.86
Treed Mixedwood 6.73 5.72 5.68 5.26 7.26 13.18 49.47 52.74 - 98.67 - - 2.64
Treed Coniferous 8.46 6.53 5.87 5.55 7.30 10.69 22.70 30.21 99.99 - - - 2.83
Subtotal 4.78 4.03 3.68 3.45 4.64 7.69 19.52 27.00 75.63 98.67 99.99 6.89 1.70
Mixedwood Plains Non-treed - - - - - - - - - - - 16.85 16.85
Treed Coniferous 27.29 13.24 15.89 14.57 20.31 48.41 56.41 85.63 - - - - 7.89
Treed Mixedwood 22.32 15.56 9.70 14.52 19.73 33.47 50.18 73.56 - - - - 6.36
Treed Broadleaf 18.12 11.53 8.19 8.40 10.77 26.87 42.88 58.98 99.99 - - - 4.53
Subtotal 12.89 7.72 5.89 6.70 8.96 20.40 32.34 40.60 99.99 - - 16.85 3.31
Boreal Plains Non-treed 32.37 42.56 27.07 23.70 43.21 52.35 67.34 90.27 - - - 8.48 7.66
Treed Mixedwood 10.35 8.68 8.72 5.64 6.95 8.80 10.81 15.41 21.96 42.29 97.84 - 2.97
Treed Broadleaf 9.00 6.78 7.12 5.37 6.65 9.06 16.14 29.26 59.36 100.00 - - 2.82
Treed Coniferous 10.40 7.54 5.74 3.90 4.42 5.27 6.21 9.40 17.14 32.76 35.46 - 2.02
Subtotal 5.84 4.63 4.03 2.85 3.29 4.10 5.19 8.06 15.20 30.00 35.11 8.48 1.44
Prairies Treed Mixedwood 58.68 42.78 43.52 43.36 63.44 86.43 100.00 - - - - - 22.28
Treed Coniferous 60.50 94.35 76.69 48.33 73.82 85.24 100.00 90.69 - - - - 45.69
Non-treed 41.20 75.44 84.99 - - - - - - - - 27.87 26.79
Treed Broadleaf 13.17 10.62 17.91 26.21 54.65 70.65 - 100.00 - - - - 7.37
Subtotal 12.69 10.41 19.17 23.02 43.54 56.05 74.22 87.72 - - - 27.87 7.70
Taiga Cordillera Non-treed - - 59.33 61.70 99.69 - - - - - - 70.69 45.01
Treed Broadleaf 57.09 48.06 35.53 91.63 16.78 99.99 - - - - - - 15.19
Treed Mixedwood 57.68 62.55 36.40 35.42 46.63 44.54 12.26 99.99 99.99 - - - 14.49
Treed Coniferous 34.98 21.75 16.19 13.67 15.43 18.88 6.35 33.56 49.55 99.99 - - 4.80
Subtotal 34.51 20.84 14.80 12.75 12.88 18.26 6.13 33.27 44.61 99.99 - 70.69 4.51
Boreal Cordillera Non-treed 100.00 33.30 31.67 35.51 29.65 28.34 55.33 100.00 - - - 33.97 13.41
Treed Broadleaf 36.69 26.34 17.42 18.21 17.94 27.33 46.70 59.00 48.13 100.00 68.02 - 8.84
Treed Mixedwood 27.92 18.17 17.94 14.90 15.42 15.50 20.54 24.86 47.97 69.86 57.76 - 6.58
Treed Coniferous 27.26 16.61 9.22 8.54 7.49 6.48 7.70 9.07 11.14 18.99 8.20 - 2.83
Subtotal 18.18 11.09 7.24 6.81 6.31 5.78 7.14 8.43 10.80 18.17 8.11 33.97 2.46
Pacific Maritime Non-treed - - - - - - - - - - - 13.58 13.58
Treed Mixedwood 47.60 26.77 18.41 30.74 30.46 33.40 54.46 42.98 43.96 99.98 45.30 - 11.35
Treed Broadleaf 58.19 31.98 26.93 25.49 36.34 41.49 35.76 48.29 99.98 47.83 42.96 - 13.95
Treed Coniferous 13.68 12.15 13.19 14.68 13.61 15.35 14.29 20.55 14.06 14.05 4.31 - 3.21
Subtotal 13.28 11.39 11.42 12.46 12.06 13.55 13.40 18.68 13.90 13.69 4.29 13.58 3.01
Montane Cordillera Treed Broadleaf 40.54 22.70 20.11 18.28 16.00 20.81 18.72 27.50 69.33 62.96 56.12 - 7.62
Treed Mixedwood 15.10 15.38 19.64 15.77 12.47 15.83 13.29 16.10 23.16 40.47 24.28 - 5.32
Non-treed 89.65 100.14 - 99.94 100.14 69.89 85.28 100.00 - 100.00 - 7.50 7.46
Treed Coniferous 7.07 6.92 9.94 7.71 5.69 5.19 4.55 5.05 5.99 6.96 4.50 - 1.80
Subtotal 6.54 6.27 8.47 6.67 4.97 4.82 4.25 4.79 5.90 6.85 4.48 7.50 1.65
Hudson Plains Treed Broadleaf 59.18 29.76 51.08 81.05 39.75 87.71 50.23 - - - - - 28.39
Non-treed - - 99.99 99.99 99.99 99.99 - - - - - 15.94 15.86
Treed Mixedwood 65.14 36.49 30.85 24.71 34.31 6.81 80.36 70.80 - - - - 6.45
Treed Coniferous 30.59 10.38 8.03 10.14 13.64 9.36 6.41 23.34 67.20 99.99 - - 3.60
Subtotal 25.91 10.12 7.89 9.73 12.45 5.53 6.39 23.27 67.20 99.99 - 15.94 3.09
Canada Non-treed 21.94 23.37 23.53 22.35 22.10 21.74 42.73 57.88 97.89 95.83 100.00 2.59 2.50
Treed Broadleaf 4.07 3.18 3.09 3.04 3.21 4.78 9.99 14.66 29.47 31.82 30.88 - 1.39
Treed Mixedwood 3.44 2.78 2.68 2.54 2.85 3.32 4.41 9.42 16.34 27.31 29.15 - 1.13
Treed Coniferous 3.00 2.15 1.90 1.71 1.70 1.65 1.70 2.54 4.53 5.70 2.89 - 0.65
Subtotal 2.00 1.57 1.43 1.30 1.34 1.43 1.60 2.44 4.36 5.53 2.87 2.59 0.52
Source: Canada's National Forest Inventory, combined remeasured (2007-2017) and projected (2006-2017 with NFI projection system) data< (Version 3, November 2023) (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.