Table 9.1. Area (1000 ha) of forest land by IUCN1 category, age class and terrestrial ecozone in Canada.
Terrestrial ecozone 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
Taiga Plains NA 949.43 1 552.05 2 408.20 3 980.00 7 192.12 13 393.05 1 362.44 753.65 296.92 36.32 72.31 78.89 32 075.38
Ib 38.10 64.03 59.21 126.65 180.29 445.69 8.77 4.45 0.38 8.90 0.01 0.00 936.46
II 10.04 67.21 139.65 278.75 271.61 1 145.42 10.93 5.44 0.18 0.14 0.00 0.00 1 929.37
VI 18.74 7.62 45.74 37.06 24.72 173.84 1.11 0.46 0.00 0.00 0.00 0.00 309.29
Subtotal 1 016.32 1 690.90 2 652.81 4 422.45 7 668.74 15 157.99 1 383.25 764.01 297.48 45.35 72.31 78.89 35 250.50
Taiga Shield NA 798.40 1 729.87 2 798.32 2 655.13 6 254.65 7 581.11 14 325.66 4 603.66 32.12 42.16 567.14 3 945.61 45 333.82
Ib 21.67 30.68 84.17 54.39 10.72 20.96 425.38 0.00 0.00 0.00 0.00 257.03 905.01
II 0.02 56.78 88.65 178.79 311.10 532.14 697.30 228.76 0.00 0.00 0.00 238.17 2 331.71
Subtotal 820.09 1 817.33 2 971.15 2 888.30 6 576.48 8 134.21 15 448.34 4 832.42 32.12 42.16 567.14 4 440.81 48 570.54
Boreal Shield NA 10 249.25 16 749.58 21 294.29 21 394.20 23 072.76 9 123.94 10 043.21 1 712.18 351.88 42.93 19.70 6 639.22 120 693.14
Ia 0.56 9.14 42.62 18.04 17.16 1.43 16.24 0.15 0.00 0.00 0.00 0.00 105.33
Ib 248.72 337.13 477.03 554.73 493.50 247.37 79.63 36.46 8.33 0.43 0.00 97.08 2 580.40
II 289.45 1 124.00 1 327.31 1 564.27 1 440.43 669.70 839.33 146.23 4.36 3.60 0.52 109.51 7 518.71
III 0.00 0.40 5.63 0.58 23.12 0.00 0.03 0.00 0.00 0.00 0.00 0.00 29.77
IV 9.33 40.82 137.69 169.38 320.45 9.56 104.18 5.48 0.00 0.00 0.00 32.27 829.15
VI 2.06 0.82 0.88 2.88 2.56 0.00 0.00 0.00 0.00 0.00 0.00 0.02 9.23
Other 37.32 185.38 193.56 136.99 92.07 76.52 19.58 3.22 0.00 0.00 0.00 0.10 744.73
Subtotal 10 836.69 18 447.27 23 479.01 23 841.07 25 462.05 10 128.51 11 102.19 1 903.72 364.57 46.96 20.23 6 878.19 132 510.46
Atlantic Maritime NA 2 320.13 3 021.17 3 144.28 3 547.61 2 002.37 784.50 86.10 23.80 1.79 0.60 0.21 673.42 15 605.97
Ia 1.76 10.13 8.73 23.89 25.37 1.19 0.28 0.00 0.00 0.00 0.00 < 0.01 71.36
Ib 5.83 7.34 82.63 88.67 43.39 11.28 0.00 0.00 0.00 0.00 0.00 2.25 241.39
II 21.55 117.51 114.69 158.96 160.09 28.70 16.18 4.67 0.00 0.00 0.00 4.07 626.43
III 0.39 6.95 4.63 4.13 0.00 6.83 0.00 0.00 0.00 0.00 0.00 0.00 22.95
IV 0.77 4.50 19.23 23.47 6.27 1.23 0.00 0.08 0.00 0.00 0.00 2.55 58.09
VI 0.10 0.41 6.52 10.14 0.41 0.07 0.00 0.00 0.00 0.00 0.00 0.12 17.77
Other 0.00 0.14 0.00 0.72 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.85
Subtotal 2 350.52 3 168.15 3 380.72 3 857.60 2 237.90 833.82 102.57 28.55 1.79 0.60 0.21 682.41 16 644.81
Mixedwood Plains NA 155.81 542.49 1 201.65 802.46 386.48 70.70 11.99 5.80 1.20 0.00 0.00 172.95 3 351.54
Ia 0.06 1.11 4.17 2.34 7.06 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14.75
II 0.37 4.42 9.23 11.67 2.53 1.72 1.55 0.36 0.00 0.00 0.00 0.00 31.84
III 0.00 0.00 0.00 0.03 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.06
IV < 0.01 0.00 1.51 0.02 0.46 0.00 2.03 0.00 0.00 0.00 0.00 < 0.01 4.03
VI 0.31 0.00 < 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.31
Subtotal 156.55 548.02 1 216.58 816.52 396.53 72.45 15.56 6.16 1.20 0.00 0.00 172.95 3 402.53
Boreal Plains NA 2 846.29 4 086.81 5 318.24 10 334.16 6 976.96 4 979.35 2 468.68 915.71 366.67 76.44 53.10 1 449.03 39 871.45
Ia 0.00 37.88 4.36 22.16 23.82 5.70 2.56 0.00 0.00 0.00 0.00 0.00 96.48
Ib 40.32 48.57 120.52 281.06 142.00 47.26 12.02 7.86 7.21 0.00 7.04 0.09 713.95
II 68.26 341.95 502.52 833.35 806.78 337.31 98.41 40.96 18.73 8.64 12.62 1.58 3 071.09
III 0.00 6.67 8.15 2.45 11.33 14.90 3.33 0.00 0.00 0.00 0.00 0.00 46.82
IV 14.75 17.32 21.24 18.70 10.01 4.65 0.07 0.34 0.00 0.00 0.00 0.67 87.75
V 0.16 0.00 2.22 1.23 8.04 3.54 2.36 0.00 0.00 0.00 0.00 0.00 17.55
VI 0.00 < 0.01 0.45 2.56 6.34 2.11 0.09 0.00 1.69 2.07 0.00 0.00 15.31
Other 1.33 0.01 17.06 34.52 38.26 31.72 7.36 1.34 0.00 0.26 0.00 0.00 131.85
Subtotal 2 971.12 4 539.19 5 994.75 11 530.17 8 023.54 5 426.54 2 594.86 966.21 394.31 87.41 72.77 1 451.36 44 052.25
Prairies NA 260.34 614.40 157.16 33.19 9.02 2.83 0.01 2.42 0.00 0.00 0.00 253.53 1 332.89
Ib 0.02 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02
II 37.66 41.02 32.98 5.12 10.06 10.15 0.97 0.00 0.00 0.00 0.00 0.00 137.97
III 2.53 0.17 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 < 0.01 2.69
IV 8.58 16.78 1.74 0.09 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.09 27.29
V 0.31 0.09 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.40
VI < 0.01 0.32 0.28 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.61
Other 0.00 0.00 0.65 2.55 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19.19 22.39
Subtotal 309.44 672.79 192.81 40.95 19.08 12.98 0.98 2.42 0.00 0.00 0.00 272.81 1 524.26
Taiga Cordillera NA 42.40 102.22 681.91 737.80 517.33 1 144.83 2 300.49 120.36 46.19 0.00 0.00 62.39 5 755.92
Ib 0.00 25.23 8.99 29.34 7.57 9.21 77.31 0.00 0.00 0.00 0.00 0.00 157.65
II 0.00 0.22 2.21 12.82 33.21 20.60 355.14 0.00 0.00 0.00 0.00 0.00 424.21
III 0.00 0.00 0.00 0.00 0.01 0.00 8.80 0.00 0.00 0.00 0.00 0.00 8.81
IV 0.00 0.53 23.34 13.02 0.00 8.25 8.20 0.00 0.00 0.00 0.00 0.00 53.34
Subtotal 42.40 128.21 716.45 792.98 558.12 1 182.89 2 749.94 120.36 46.19 0.00 0.00 62.39 6 399.94
Boreal Cordillera NA 222.65 547.38 2 193.26 2 155.57 2 368.31 3 415.50 1 829.14 1 280.94 793.84 197.79 935.98 452.53 16 392.88
Ib 2.13 4.99 59.42 97.79 56.81 81.16 139.43 94.40 124.44 36.33 525.04 0.00 1 221.94
II 0.00 25.85 52.83 43.45 77.27 115.46 295.94 92.10 27.34 0.94 146.90 0.00 878.09
IV 0.00 0.00 0.29 25.93 2.79 32.89 24.52 8.15 2.34 0.00 0.00 0.00 96.91
Subtotal 224.77 578.22 2 305.80 2 322.75 2 505.18 3 645.01 2 289.03 1 475.59 947.96 235.06 1 607.91 452.53 18 589.82
Pacific Maritime NA 457.81 716.61 761.44 567.56 426.68 362.36 261.37 182.74 193.45 202.48 5 024.13 296.09 9 452.71
Ia 0.00 0.00 0.00 0.12 0.00 0.00 0.06 0.00 1.41 0.00 2.89 0.00 4.48
Ib 0.00 0.00 1.29 5.40 1.07 4.52 12.68 2.57 0.89 7.36 180.79 0.08 216.65
II 1.65 37.98 68.77 29.97 53.38 58.55 39.82 83.00 73.45 99.40 1 415.38 0.28 1 961.63
III 0.00 0.00 0.48 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.24 0.00 0.72
IV 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
V 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Subtotal 459.46 754.58 831.99 603.05 481.13 425.43 313.94 268.30 269.19 309.23 6 623.44 296.45 11 636.19
Montane Cordillera NA 1 727.16 1 856.54 1 042.61 1 418.24 2 897.07 3 077.32 3 046.51 2 514.51 1 493.94 1 217.33 4 826.27 1 634.46 26 751.97
Ia 0.00 0.02 0.00 0.00 0.00 0.69 30.59 3.26 3.69 0.00 0.00 0.00 38.26
Ib 2.74 10.51 65.09 165.81 203.01 230.67 137.99 57.21 41.34 19.47 365.95 0.00 1 299.78
II 4.09 40.46 65.21 154.31 442.10 399.69 530.46 638.81 336.51 226.37 725.88 0.01 3 563.89
III 12.59 0.11 0.00 4.04 0.03 4.26 1.44 0.00 0.00 0.00 0.05 0.00 22.52
IV 0.00 1.26 0.00 0.03 0.01 0.00 1.34 0.52 3.00 0.00 23.12 0.00 29.28
VI 0.00 0.00 0.00 1.75 0.19 7.02 3.78 0.00 0.00 0.00 0.00 0.00 12.74
Other 5.94 9.17 15.72 7.46 1.31 3.04 0.00 0.00 0.00 0.00 0.00 0.00 42.63
Subtotal 1 752.53 1 918.07 1 188.63 1 751.64 3 543.73 3 722.69 3 752.11 3 214.32 1 878.48 1 463.16 5 941.27 1 634.46 31 761.08
Hudson Plains NA 71.04 1 002.61 1 568.47 1 038.49 2 999.76 1 805.98 1 629.16 311.41 6.08 0.25 0.00 500.34 10 933.58
Ib 1.51 55.04 84.07 17.24 89.37 54.16 54.77 18.59 0.00 0.00 0.00 21.13 395.87
II 11.12 18.97 22.17 40.60 29.96 4.90 66.00 6.40 0.36 0.00 0.00 61.47 261.97
IV 0.00 0.00 0.00 0.00 0.28 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.28
Subtotal 83.67 1 076.62 1 674.72 1 096.33 3 119.36 1 865.04 1 749.94 336.40 6.43 0.25 0.00 582.93 11 591.69
Canada NA 20 100.72 32 521.71 42 569.84 48 664.41 55 103.51 45 741.47 37 364.75 12 427.18 3 584.09 1 816.30 11 498.84 16 158.44 327 551.26
Ia 2.38 58.27 59.89 66.55 73.42 9.01 49.74 3.41 5.10 0.00 2.89 < 0.01 330.65
Ib 361.03 583.53 1 042.42 1 421.07 1 227.72 1 152.29 947.97 221.54 182.58 72.48 1 078.83 377.66 8 669.13
II 444.21 1 876.37 2 426.24 3 312.06 3 638.53 3 324.35 2 952.03 1 246.73 460.93 339.08 2 301.29 415.08 22 736.90
III 15.51 14.29 18.90 11.24 34.49 26.03 13.60 0.00 0.00 0.00 0.29 < 0.01 134.34
IV 33.44 81.21 205.04 250.63 340.27 56.58 140.33 14.57 5.34 0.00 23.12 35.58 1 186.13
V 0.47 0.09 2.22 1.23 8.04 3.54 2.36 0.00 0.00 0.00 0.00 0.00 17.95
VI 21.21 9.17 53.89 54.40 34.22 183.04 4.98 0.46 1.69 2.07 0.00 0.13 365.27
Other 44.59 194.69 226.98 182.23 131.63 111.29 26.93 4.56 0.00 0.26 0.00 19.29 942.46
Total 21 023.55 35 339.35 46 605.42 53 963.82 60 591.83 50 607.58 41 502.70 13 918.47 4 239.73 2 230.18 14 905.27 17 006.18 361 934.07
Source: Canada's National Forest Inventory, combined remeasured (2007-2017) and projected (2006-2017 with NFI projection system) data (Version 1, July 2021) (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 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.
International Union for Conservation of Nature (IUCN) category
IUCN Category Description
NA Not protected
Ia Protected area managed mainly for science
Ib Protected area managed mainly for wilderness protection
II Protected area managed mainly for ecosystem protection and recreation
III Protected area managed mainly for conservation of specific natural features
IV Protected area managed mainly for conservation through management intervention
V Protected area managed mainly for landscape/seascape protection and recreation
VI Protected area managed mainly for the sustainable use of natural resources
Other Protected with missing or unknown category