Table 15.1b. Confidence interval (million m3) of total tree volume on 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 ±0.04 ±0.11 <0.01 ±0.46 <0.01 - - - - - - 0.00 ±0.47
Treed Mixedwood ±2.12 ±7.61 ±10.95 ±16.94 ±17.45 ±56.31 ±23.25 ±10.97 ±7.17 ±9.08 ±3.07 - ±68.91
Treed Broadleaf ±6.13 ±8.10 ±15.97 ±57.06 ±53.66 ±35.91 ±42.80 ±27.51 ±10.43 ±0.31 - - ±102.38
Treed Coniferous ±3.62 ±10.70 ±20.58 ±32.60 ±33.92 ±162.72 ±32.39 ±32.29 ±21.48 ±6.77 ±7.92 - ±178.62
Subtotal ±7.43 ±15.43 ±28.25 ±67.87 ±65.84 ±175.89 ±58.49 ±43.82 ±24.93 ±11.33 ±8.49 0.00 ±217.10
Taiga Shield Non-treed - - ±4.96 ±0.30 ±0.25 - - - - - - 0.00 ±4.97
Treed Broadleaf ±1.66 ±2.41 ±4.78 ±1.70 ±1.61 ±9.16 ±0.22 - - - - - ±10.99
Treed Mixedwood ±1.59 ±2.62 ±3.14 ±4.73 ±4.30 ±2.92 ±9.28 ±1.03 - - - - ±12.48
Treed Coniferous ±3.77 ±14.44 ±25.38 ±22.34 ±42.00 ±50.00 ±65.23 ±54.13 ±1.53 ±4.21 ±21.23 - ±115.27
Subtotal ±4.41 ±14.88 ±26.49 ±22.90 ±42.25 ±50.91 ±65.89 ±54.14 ±1.53 ±4.21 ±21.23 0.00 ±116.56
Boreal Shield Non-treed ±0.98 ±1.72 ±2.09 ±15.94 ±5.17 ±6.22 ±0.89 ±0.25 ±0.48 ±0.33 ±0.18 0.00 ±18.14
Treed Broadleaf ±11.76 ±23.40 ±46.24 ±64.07 ±63.12 ±29.72 ±9.56 ±3.69 ±4.53 ±2.20 - - ±109.21
Treed Mixedwood ±15.65 ±30.33 ±46.10 ±62.47 ±65.95 ±29.27 ±15.38 ±10.07 ±6.45 ±3.36 ±2.77 - ±113.12
Treed Coniferous ±19.82 ±60.67 ±73.85 ±96.05 ±102.23 ±107.58 ±83.59 ±31.57 ±14.03 ±2.61 ±2.61 - ±221.30
Subtotal ±27.88 ±71.78 ±98.60 ±132.24 ±137.15 ±115.56 ±85.53 ±33.34 ±16.10 ±4.80 ±3.81 0.00 ±272.08
Atlantic Maritime Non-treed ±0.04 ±0.09 ±0.19 ±0.16 ±0.04 - - - - - - 0.00 ±0.27
Treed Broadleaf ±5.50 ±10.07 ±19.21 ±24.20 ±21.44 ±13.69 ±0.93 ±2.15 ±0.37 - ±0.08 - ±41.70
Treed Mixedwood ±6.51 ±12.87 ±21.83 ±26.77 ±18.77 ±11.64 ±2.84 ±0.71 - ±0.34 - - ±43.56
Treed Coniferous ±8.73 ±20.03 ±22.55 ±29.64 ±25.62 ±16.34 ±6.24 ±1.72 ±0.15 - - - ±53.19
Subtotal ±12.20 ±25.84 ±36.80 ±46.70 ±38.32 ±24.29 ±6.92 ±2.85 ±0.40 ±0.34 ±0.08 0.00 ±80.42
Mixedwood Plains Non-treed - - - - - - - - - - - 0.00 0.00
Treed Coniferous ±1.85 ±3.22 ±7.56 ±4.99 ±2.10 ±0.75 ±0.41 ±1.70 - - - - ±10.20
Treed Mixedwood ±1.17 ±4.03 ±10.14 ±10.92 ±6.97 ±4.04 ±1.35 ±0.70 - - - - ±17.52
Treed Broadleaf ±1.13 ±3.97 ±17.70 ±16.71 ±15.68 ±7.31 ±3.60 ±1.25 ±0.55 - - - ±30.39
Subtotal ±2.46 ±6.51 ±21.75 ±20.58 ±17.29 ±8.39 ±3.86 ±2.23 ±0.55 - - 0.00 ±36.53
Boreal Plains Non-treed ±0.13 ±0.36 ±0.16 ±0.09 ±0.67 ±5.41 ±0.63 ±0.18 - - - 0.00 ±5.50
Treed Mixedwood ±8.37 ±15.45 ±27.20 ±43.41 ±44.58 ±37.32 ±30.12 ±13.24 ±5.68 ±1.12 ±0.69 - ±86.20
Treed Broadleaf ±15.96 ±26.01 ±57.79 ±97.96 ±73.48 ±52.03 ±34.45 ±13.30 ±2.26 ±0.23 - - ±152.78
Treed Coniferous ±12.69 ±24.87 ±35.44 ±90.46 ±67.54 ±69.05 ±56.54 ±40.91 ±31.63 ±12.72 ±15.61 - ±160.70
Subtotal ±22.04 ±39.16 ±73.05 ±140.23 ±109.31 ±94.32 ±72.74 ±45.01 ±32.22 ±12.78 ±15.62 0.00 ±237.97
Prairies Non-treed ±0.36 ±0.05 ±0.01 - - - - - - - - 0.00 ±0.36
Treed Mixedwood ±0.22 ±0.41 ±0.83 ±0.82 ±0.48 ±1.95 ±0.20 - - - - - ±2.38
Treed Coniferous ±0.12 ±1.22 ±2.54 ±0.21 ±1.46 ±3.95 ±0.40 ±1.02 - - - - ±5.19
Treed Broadleaf ±5.51 ±14.77 ±9.78 ±3.55 ±3.46 ±0.68 - ±0.04 - - - - ±19.21
Subtotal ±5.53 ±14.83 ±10.14 ±3.65 ±3.78 ±4.46 ±0.45 ±1.02 - - - 0.00 ±20.05
Taiga Cordillera Non-treed - - ±0.11 ±1.93 ±3.50 - - - - - - 0.00 ±4.00
Treed Broadleaf ±0.37 ±0.89 ±0.81 ±0.51 ±5.19 ±0.03 - - - - - - ±5.36
Treed Mixedwood ±0.11 ±0.52 ±0.39 ±1.30 ±1.21 ±1.22 ±4.40 ±0.53 ±3.92 - - - ±6.33
Treed Coniferous ±0.15 ±1.47 ±3.37 ±7.02 ±9.81 ±9.38 ±89.93 ±16.36 ±7.46 ±1.03 - - ±93.05
Subtotal ±0.41 ±1.79 ±3.48 ±7.41 ±11.69 ±9.46 ±90.03 ±16.36 ±8.43 ±1.03 - 0.00 ±93.50
Boreal Cordillera Non-treed ±0.01 ±0.10 ±0.73 ±3.98 ±9.73 ±12.10 ±5.28 ±0.43 - - - 0.00 ±16.90
Treed Broadleaf ±0.90 ±1.76 ±6.66 ±13.53 ±10.36 ±20.66 ±32.74 ±15.81 ±1.09 ±4.53 ±1.08 - ±45.94
Treed Mixedwood ±0.36 ±1.42 ±9.91 ±29.97 ±15.01 ±18.28 ±20.06 ±20.73 ±12.67 ±13.98 ±9.71 - ±53.30
Treed Coniferous ±1.14 ±4.14 ±20.42 ±39.65 ±37.56 ±85.26 ±71.47 ±57.79 ±56.03 ±18.16 ±68.47 - ±165.20
Subtotal ±1.50 ±4.72 ±23.66 ±51.67 ±42.88 ±90.42 ±81.30 ±63.40 ±57.46 ±23.36 ±69.16 0.00 ±180.36
Pacific Maritime Non-treed - - - - - - - - - - - 0.00 0.00
Treed Mixedwood ±0.30 ±4.39 ±9.54 ±21.33 ±12.99 ±10.79 ±4.21 ±5.65 ±1.33 ±0.02 ±10.37 - ±31.77
Treed Broadleaf ±0.34 ±4.76 ±16.09 ±14.47 ±19.78 ±23.22 ±8.05 ±5.76 ±0.14 ±7.84 ±9.10 - ±40.79
Treed Coniferous ±3.36 ±28.73 ±86.84 ±98.97 ±72.65 ±61.96 ±60.96 ±47.34 ±35.56 ±25.83 ±367.44 - ±412.55
Subtotal ±3.39 ±29.45 ±88.83 ±102.27 ±76.41 ±67.05 ±61.63 ±48.02 ±35.58 ±26.99 ±367.70 0.00 ±415.77
Montane Cordillera Non-treed <0.01 <0.01 - <0.01 ±0.03 ±0.02 ±0.03 ±0.15 - ±0.04 - 0.00 ±0.16
Treed Broadleaf ±0.06 ±6.16 ±7.70 ±14.88 ±29.82 ±19.91 ±16.13 ±12.45 ±1.81 ±8.74 ±4.75 - ±46.06
Treed Mixedwood ±4.95 ±6.50 ±23.35 ±15.71 ±40.41 ±54.41 ±24.68 ±26.62 ±5.90 ±6.28 ±5.12 - ±82.89
Treed Coniferous ±3.99 ±20.53 ±40.96 ±46.85 ±100.19 ±105.66 ±112.33 ±113.89 ±87.13 ±59.94 ±240.94 - ±346.90
Subtotal ±6.36 ±22.40 ±47.77 ±51.61 ±112.07 ±120.50 ±116.14 ±117.62 ±87.35 ±60.89 ±241.04 0.00 ±359.62
Hudson Plains Non-treed - - ±0.01 ±0.28 ±0.11 ±0.02 - - - - - 0.00 ±0.30
Treed Broadleaf ±0.75 ±0.22 ±0.41 ±2.09 ±2.37 ±0.61 ±0.05 - - - - - ±3.34
Treed Mixedwood ±0.15 ±1.13 ±1.97 ±2.33 ±2.37 ±6.54 ±1.15 ±0.23 - - - - ±7.77
Treed Coniferous ±0.66 ±8.67 ±11.66 ±12.79 ±15.27 ±16.86 ±25.12 ±11.49 ±1.17 ±0.04 - - ±40.71
Subtotal ±1.01 ±8.74 ±11.83 ±13.18 ±15.64 ±18.09 ±25.14 ±11.49 ±1.17 ±0.04 - 0.00 ±41.58
Canada Non-treed ±1.06 ±1.77 ±5.43 ±16.56 ±11.58 ±14.64 ±5.39 ±0.55 ±0.48 ±0.34 ±0.18 0.00 ±26.20
Treed Broadleaf ±22.30 ±41.17 ±83.05 ±135.85 ±120.02 ±81.05 ±67.24 ±37.31 ±11.80 ±12.79 ±10.32 - ±234.18
Treed Mixedwood ±19.77 ±38.35 ±65.68 ±92.41 ±95.37 ±95.08 ±53.20 ±39.62 ±18.38 ±18.16 ±15.68 - ±195.35
Treed Coniferous ±26.26 ±79.86 ±134.66 ±183.44 ±188.80 ±261.24 ±213.75 ±160.00 ±117.11 ±69.44 ±445.55 - ±671.63
Total ±39.73 ±97.70 ±171.39 ±246.82 ±243.47 ±289.95 ±230.37 ±169.00 ±119.13 ±72.91 ±445.95 0.00 ±738.09
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.
1 Missing or unknown age class.