Table 5.1b. Confidence interval (1000 ha) 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 ±0.35 ±1.96 ±0.04 ±4.76 ±0.63 - - - - - - ±118.44 ±118.55
Treed Mixedwood ±101.72 ±97.85 ±78.65 ±107.10 ±73.42 ±209.70 ±59.59 ±29.98 ±14.75 ±18.28 ±13.20 - ±303.51
Treed Broadleaf ±126.63 ±77.69 ±81.63 ±178.82 ±252.17 ±102.19 ±103.21 ±60.78 ±18.12 ±0.63 - - ±386.54
Treed Coniferous ±114.52 ±214.90 ±319.09 ±354.92 ±286.66 ±857.31 ±181.29 ±164.30 ±91.97 ±25.56 ±53.00 - ±1 084.44
Subtotal ±198.74 ±248.58 ±338.62 ±411.63 ±388.79 ±888.48 ±216.96 ±177.73 ±94.89 ±31.43 ±54.62 ±118.44 ±1 196.50
Taiga Shield Treed Broadleaf ±71.03 ±43.51 ±33.44 ±18.49 ±29.95 ±141.71 ±1.22 - - - - - ±171.41
Treed Mixedwood ±60.85 ±51.47 ±38.51 ±34.47 ±38.35 ±34.07 ±122.53 ±8.69 - - - - ±163.54
Non-treed - - ±66.86 ±8.06 ±3.16 - - - - - - ±400.57 ±406.20
Treed Coniferous ±152.04 ±282.10 ±379.20 ±283.85 ±562.89 ±653.36 ±846.24 ±528.57 ±26.46 ±47.31 ±226.49 - ±1 456.20
Subtotal ±178.51 ±290.04 ±388.42 ±286.65 ±565.00 ±669.42 ±855.06 ±528.64 ±26.46 ±47.31 ±226.49 ±400.57 ±1 530.25
Boreal Shield Non-treed ±40.64 ±25.71 ±19.42 ±83.95 ±36.75 ±45.20 ±5.83 ±1.09 ±2.47 ±3.01 ±0.92 ±527.91 ±540.25
Treed Broadleaf ±228.65 ±237.24 ±309.76 ±344.13 ±311.96 ±148.82 ±41.00 ±16.01 ±19.11 ±7.29 - - ±666.90
Treed Mixedwood ±302.39 ±324.10 ±323.39 ±406.72 ±412.43 ±156.05 ±74.40 ±50.14 ±28.22 ±10.20 ±14.06 - ±818.58
Treed Coniferous ±473.31 ±789.18 ±764.19 ±728.65 ±759.09 ±733.70 ±657.13 ±217.46 ±109.33 ±19.86 ±10.78 - ±1 888.88
Subtotal ±607.78 ±885.88 ±885.94 ±906.55 ±919.23 ±766.07 ±662.62 ±223.74 ±114.55 ±23.68 ±17.74 ±527.91 ±2 230.37
Atlantic Maritime Non-treed ±3.30 ±1.54 ±2.75 ±2.34 ±0.47 - - - - - - ±92.10 ±92.24
Treed Broadleaf ±77.51 ±91.72 ±114.26 ±136.16 ±112.29 ±68.30 ±4.97 ±9.34 ±2.42 - ±0.41 - ±251.81
Treed Mixedwood ±124.79 ±116.22 ±141.41 ±155.08 ±102.41 ±62.39 ±12.58 ±3.06 - ±1.15 - - ±296.10
Treed Coniferous ±165.01 ±205.71 ±159.55 ±161.53 ±143.82 ±85.66 ±33.44 ±9.65 ±1.09 - - - ±387.72
Subtotal ±220.95 ±253.45 ±241.91 ±262.08 ±209.24 ±126.07 ±36.07 ±13.77 ±2.66 ±1.15 ±0.41 ±92.10 ±556.70
Mixedwood Plains Non-treed - - - - - - - - - - - ±55.54 ±55.54
Treed Coniferous ±22.83 ±32.57 ±52.81 ±25.23 ±11.93 ±5.14 ±2.34 ±3.66 - - - - ±72.08
Treed Mixedwood ±18.24 ±45.52 ±62.78 ±55.29 ±32.97 ±17.28 ±5.80 ±3.90 - - - - ±104.11
Treed Broadleaf ±19.15 ±49.47 ±105.82 ±97.79 ±73.47 ±34.14 ±15.83 ±4.58 ±2.37 - - - ±174.40
Subtotal ±34.94 ±74.71 ±133.90 ±115.14 ±81.40 ±38.61 ±17.02 ±7.04 ±2.37 - - ±55.54 ±222.56
Boreal Plains Non-treed ±26.80 ±47.23 ±19.61 ±8.58 ±33.51 ±32.55 ±2.69 ±4.56 - - - ±238.07 ±249.59
Treed Mixedwood ±111.95 ±111.31 ±133.43 ±166.93 ±160.67 ±123.77 ±87.19 ±37.20 ±17.09 ±5.59 ±1.69 - ±347.91
Treed Broadleaf ±214.21 ±208.56 ±286.41 ±403.71 ±280.88 ±179.25 ±114.47 ±34.47 ±8.94 ±0.95 - - ±678.08
Treed Coniferous ±242.22 ±336.36 ±365.79 ±501.23 ±398.93 ±351.03 ±224.15 ±145.46 ±109.87 ±46.34 ±58.54 - ±963.46
Subtotal ±343.23 ±413.83 ±483.76 ±664.94 ±514.76 ±414.40 ±266.38 ±154.12 ±111.55 ±46.68 ±58.56 ±238.07 ±1 253.55
Prairies Treed Mixedwood ±4.32 ±5.21 ±4.30 ±3.64 ±1.67 ±5.64 ±0.65 - - - - - ±10.61
Treed Coniferous ±2.39 ±19.44 ±47.56 ±1.46 ±4.78 ±12.72 ±1.26 ±4.17 - - - - ±53.40
Non-treed ±5.67 ±5.98 ±0.63 - - - - - - - - ±149.29 ±149.52
Treed Broadleaf ±77.04 ±137.02 ±55.13 ±18.16 ±15.57 ±2.72 - ±0.16 - - - - ±168.31
Subtotal ±77.41 ±138.62 ±72.94 ±18.57 ±16.37 ±14.17 ±1.42 ±4.17 - - - ±149.29 ±231.62
Taiga Cordillera Non-treed - - ±7.44 ±38.26 ±60.78 - - - - - - ±107.18 ±129.24
Treed Broadleaf ±24.18 ±19.34 ±14.33 ±21.77 ±32.91 ±0.67 - - - - - - ±52.17
Treed Mixedwood ±6.08 ±69.49 ±35.70 ±22.71 ±38.46 ±9.33 ±33.09 ±2.18 ±14.29 - - - ±97.60
Treed Coniferous ±8.05 ±77.96 ±219.47 ±191.01 ±133.90 ±109.30 ±440.66 ±80.09 ±37.64 ±3.51 - - ±568.06
Subtotal ±26.20 ±106.21 ±222.94 ±197.33 ±155.52 ±109.69 ±441.90 ±80.12 ±40.26 ±3.51 - ±107.18 ±592.99
Boreal Cordillera Non-treed ±5.31 ±74.16 ±93.56 ±92.27 ±107.36 ±67.59 ±21.07 ±2.14 - - - ±156.99 ±252.95
Treed Broadleaf ±65.22 ±80.22 ±140.53 ±116.82 ±61.40 ±97.95 ±78.54 ±36.40 ±5.39 ±5.32 ±4.63 - ±254.99
Treed Mixedwood ±33.59 ±52.42 ±162.80 ±135.21 ±120.73 ±114.62 ±88.20 ±92.12 ±39.11 ±21.22 ±60.19 - ±313.44
Treed Coniferous ±55.42 ±120.37 ±273.71 ±327.91 ±314.28 ±428.46 ±343.34 ±250.06 ±214.86 ±89.47 ±365.36 - ±922.19
Subtotal ±92.09 ±170.80 ±360.45 ±384.66 ±358.67 ±459.22 ±363.70 ±268.97 ±218.46 ±92.11 ±370.31 ±156.99 ±1 038.11
Pacific Maritime Non-treed - - - - - - - - - - - ±70.99 ±70.99
Treed Mixedwood ±12.33 ±19.38 ±21.11 ±42.84 ±28.42 ±25.21 ±10.93 ±10.23 ±2.65 ±0.03 ±17.70 - ±69.25
Treed Broadleaf ±2.86 ±9.90 ±37.94 ±25.88 ±57.53 ±52.08 ±10.34 ±16.01 ±0.15 ±9.16 ±13.65 - ±94.19
Treed Coniferous ±117.68 ±165.82 ±177.95 ±142.15 ±97.53 ±99.75 ±83.97 ±96.42 ±74.54 ±83.35 ±570.65 - ±683.51
Subtotal ±118.36 ±167.25 ±183.17 ±150.70 ±116.75 ±115.32 ±85.30 ±98.28 ±74.59 ±83.85 ±571.09 ±70.99 ±697.06
Montane Cordillera Treed Broadleaf ±5.68 ±35.49 ±30.16 ±49.30 ±92.85 ±55.44 ±44.47 ±32.49 ±7.62 ±12.57 ±9.26 - ±140.22
Treed Mixedwood ±57.73 ±60.27 ±82.90 ±63.01 ±105.58 ±94.71 ±63.08 ±59.14 ±14.20 ±16.12 ±11.67 - ±214.48
Non-treed ±4.15 ±3.98 - ±0.21 ±9.29 ±1.96 ±0.93 ±0.59 - ±0.13 - ±325.88 ±326.07
Treed Coniferous ±269.03 ±275.20 ±202.53 ±233.31 ±349.15 ±345.04 ±331.43 ±319.71 ±235.04 ±207.39 ±576.40 - ±1 061.64
Subtotal ±275.24 ±283.98 ±220.91 ±246.65 ±376.51 ±362.08 ±340.30 ±326.76 ±235.60 ±208.40 ±576.59 ±325.88 ±1 139.76
Hudson Plains Treed Broadleaf ±22.06 ±4.46 ±2.89 ±12.59 ±62.44 ±4.22 ±1.69 - - - - - ±67.77
Non-treed - - ±0.15 ±3.75 ±1.46 ±0.21 - - - - - ±182.01 ±182.05
Treed Mixedwood ±10.40 ±16.41 ±17.55 ±18.69 ±20.18 ±269.11 ±6.18 ±1.45 - - - - ±271.85
Treed Coniferous ±24.66 ±216.71 ±258.92 ±196.12 ±168.89 ±239.37 ±342.62 ±161.68 ±10.81 ±0.48 - - ±618.50
Subtotal ±34.69 ±217.37 ±259.53 ±197.45 ±181.20 ±360.19 ±342.68 ±161.69 ±10.81 ±0.48 - ±182.01 ±702.98
Canada Non-treed ±49.58 ±91.92 ±118.52 ±131.17 ±133.39 ±87.61 ±22.04 ±5.19 ±2.47 ±3.01 ±0.92 ±851.00 ±890.14
Treed Broadleaf ±370.03 ±381.48 ±485.14 ±599.62 ±528.80 ±325.63 ±184.31 ±88.79 ±29.53 ±18.01 ±17.14 - ±1 142.97
Treed Mixedwood ±372.43 ±396.38 ±435.22 ±507.95 ±492.72 ±429.28 ±211.91 ±130.35 ±57.00 ±34.37 ±66.69 - ±1 114.04
Treed Coniferous ±660.79 ±1 037.41 ±1 121.04 ±1 128.07 ±1 196.61 ±1 487.53 ±1 333.61 ±762.59 ±376.41 ±251.81 ±921.42 - ±3 331.81
Total ±845.42 ±1 177.84 ±1 302.13 ±1 381.05 ±1 404.31 ±1 584.53 ±1 363.04 ±778.75 ±381.85 ±254.80 ±923.99 ±851.00 ±3 800.10
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.