Table 5C.1. Annual change in area (1000 ha) 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 Treed Mixedwood 9.11 12.85 -20.72 11.65 -194.18 160.47 7.19 1.83 1.68 0.07 0.25 - -9.78
Treed Broadleaf 15.16 4.03 -47.18 -131.35 130.71 1.41 11.32 7.00 0.82 - - - -8.09
Non-treed 0.02 0.14 <0.01 0.28 0.03 - - - - - - 13.92 14.40
Treed Coniferous 2.77 55.94 62.81 53.30 -1 890.90 1 689.09 20.67 14.23 9.95 2.50 1.78 - 22.13
Subtotal 27.06 72.95 -5.08 -66.11 -1 954.33 1 850.97 39.18 23.06 12.45 2.57 2.03 13.92 18.66
Taiga Shield Non-treed - -0.11 3.25 0.46 - - - - - - - -50.05 -46.45
Treed Mixedwood 5.32 7.66 4.48 -1.89 -4.02 -93.09 89.87 0.79 - - - - 9.10
Treed Broadleaf 6.86 3.54 2.04 1.09 -74.20 77.46 0.02 - - - - - 16.80
Treed Coniferous 11.66 83.08 138.03 -300.22 -271.06 -1 003.75 695.32 668.79 1.62 3.61 46.23 - 73.31
Subtotal 23.84 94.16 147.80 -300.56 -349.29 -1 019.38 785.21 669.58 1.62 3.61 46.23 -50.05 52.76
Boreal Shield Treed Mixedwood -109.82 90.84 -23.28 -226.08 -170.47 10.71 -2.15 -4.11 1.25 -2.06 0.21 - -434.94
Non-treed 5.28 -2.87 0.14 6.79 0.35 5.98 1.42 0.11 -0.25 0.14 0.04 -144.49 -127.37
Treed Broadleaf 22.69 129.38 66.92 21.34 -10.13 -8.68 -16.39 -8.23 -1.83 0.39 -0.11 - 195.34
Treed Coniferous -121.76 386.97 449.77 33.93 -532.06 -416.12 583.77 -19.91 0.73 0.66 0.85 - 366.83
Subtotal -203.61 604.32 493.55 -164.02 -712.32 -408.11 566.64 -32.14 -0.10 -0.87 1.00 -144.49 -0.15
Atlantic Maritime Non-treed -0.89 0.09 0.20 0.20 0.02 - - - - - - -12.07 -12.44
Treed Mixedwood -36.20 10.51 -60.56 40.62 29.28 18.31 0.54 0.28 -0.12 0.06 - - 2.71
Treed Broadleaf -40.49 18.44 -36.61 34.20 28.33 16.23 0.27 0.44 0.11 -0.04 0.00 - 20.89
Treed Coniferous -42.64 41.59 -48.59 25.73 24.49 17.96 4.91 1.18 0.05 - - - 24.67
Subtotal -120.21 70.64 -145.56 100.74 82.12 52.49 5.72 1.90 0.04 0.02 0.00 -12.07 35.82
Mixedwood Plains Treed Mixedwood -2.49 -10.63 -6.19 8.80 3.35 1.91 0.15 0.21 - - - - -4.89
Treed Coniferous -3.40 -3.87 4.94 4.18 1.36 0.42 <0.01 0.20 - - - - 3.85
Non-treed - - - - - - - - - - - 7.49 7.49
Treed Broadleaf -8.57 -16.47 0.25 16.31 18.27 3.60 1.30 0.17 0.11 - - - 14.97
Subtotal -14.46 -30.97 -1.00 29.30 22.98 5.93 1.46 0.58 0.11 - - 7.49 21.42
Boreal Plains Non-treed 3.25 5.05 3.22 1.06 3.56 3.24 0.19 0.31 - - - -91.34 -71.46
Treed Coniferous -7.76 29.02 -136.52 54.00 21.40 22.80 47.01 18.54 -6.30 0.86 1.81 - 44.88
Treed Broadleaf 35.77 -4.69 -165.93 107.40 48.70 18.68 15.39 4.67 0.17 0.01 - - 60.18
Treed Mixedwood 13.00 7.25 -38.80 38.21 12.58 11.36 14.26 3.08 2.25 0.07 <0.01 - 63.25
Subtotal 44.25 36.63 -338.02 200.68 86.24 56.08 76.84 26.60 -3.88 0.95 1.82 -91.34 96.85
Prairies Treed Mixedwood 0.31 0.46 0.01 -0.39 -0.15 0.29 0.03 - - - - - 0.56
Treed Coniferous 0.05 0.96 2.76 -1.15 0.04 -1.57 0.06 0.21 - - - - 1.35
Treed Broadleaf 20.46 50.99 -7.16 -28.47 -32.84 0.17 - <0.01 - - - - 3.15
Non-treed 0.47 0.37 0.03 - - - - - - - - 16.83 17.70
Subtotal 21.29 52.78 -4.36 -30.01 -32.95 -1.12 0.09 0.21 - - - 16.83 22.76
Taiga Cordillera Treed Coniferous 0.15 -45.66 16.54 22.47 8.97 -376.57 353.80 7.60 2.14 0.16 - - -10.39
Treed Mixedwood -2.87 0.15 -0.51 -1.15 0.31 -14.50 13.45 -0.56 0.67 - - - -5.01
Treed Broadleaf -0.07 0.19 -0.04 -10.08 10.04 0.03 - - - - - - 0.06
Non-treed - 3.36 4.23 3.21 2.84 - - - - - - 7.05 20.69
Subtotal -2.79 -41.96 20.21 14.45 22.16 -391.04 367.25 7.04 2.80 0.16 - 7.05 5.34
Boreal Cordillera Treed Mixedwood -2.85 -42.04 -2.48 -1.43 0.76 11.42 4.96 9.52 -3.82 1.42 -2.74 - -27.29
Treed Coniferous -3.07 -64.39 -37.15 -20.71 -148.20 116.22 99.63 51.30 17.26 1.53 -39.60 - -27.16
Treed Broadleaf -5.88 -33.76 11.08 9.72 12.86 6.13 1.93 0.35 -0.66 0.25 -1.28 - 0.73
Non-treed 0.25 13.48 15.79 12.59 18.09 13.35 1.79 0.10 0.04 - - 15.62 91.08
Subtotal -11.55 -126.71 -12.77 0.17 -116.49 147.11 108.32 61.28 12.82 3.20 -43.62 15.62 37.36
Pacific Maritime Non-treed - - - - - - - - - - 0.21 -20.56 -20.35
Treed Mixedwood 0.69 0.25 -1.27 1.28 0.71 1.09 0.55 -0.11 0.10 -0.46 1.08 - 3.90
Treed Broadleaf 0.14 -0.75 1.97 -4.13 3.39 2.53 -0.12 0.97 -0.56 0.86 0.76 - 5.05
Treed Coniferous 3.91 -10.68 11.61 1.52 9.92 -2.82 -2.96 9.68 5.75 6.33 49.64 - 81.92
Subtotal 4.74 -11.18 12.31 -1.33 14.02 0.80 -2.53 10.55 5.29 6.73 51.69 -20.56 70.52
Montane Cordillera Treed Broadleaf 0.12 0.17 -0.08 -0.34 8.93 -0.37 3.21 3.14 -0.23 0.55 0.36 - 15.47
Treed Mixedwood 5.89 -4.35 5.54 -4.29 2.90 11.24 1.54 7.95 -0.55 0.92 0.45 - 27.23
Treed Coniferous 51.18 13.41 -3.63 -95.19 -39.95 20.31 14.30 55.69 10.13 -19.44 39.63 - 46.45
Non-treed 0.25 0.19 - 0.01 0.53 1.08 3.96 0.45 0.60 1.59 3.20 36.81 48.67
Subtotal 57.45 9.43 1.83 -99.80 -27.58 32.26 23.01 67.23 9.95 -16.38 43.64 36.81 137.83
Hudson Plains Treed Mixedwood 0.14 0.98 -0.99 2.85 -297.46 249.24 0.28 - - - - - -44.97
Non-treed - - - - - 0.01 - - - - - -3.28 -3.27
Treed Broadleaf 0.09 0.25 0.15 -7.60 7.33 -0.15 0.33 - - - - - 0.41
Treed Coniferous -4.05 36.87 54.48 22.21 -105.05 -236.02 289.76 2.59 0.47 0.02 - - 61.27
Subtotal -3.82 38.10 53.64 17.46 -395.19 13.07 290.37 2.59 0.47 0.02 - -3.28 13.43
Canada Treed Mixedwood -119.77 73.92 -144.79 -131.80 -616.38 368.43 130.67 18.87 1.46 0.02 -0.75 - -420.12
Non-treed 8.62 19.69 26.87 24.60 25.42 23.66 7.36 0.97 0.39 1.73 3.45 -224.08 -81.32
Treed Broadleaf 46.27 151.33 -174.59 8.09 151.39 117.02 17.26 8.52 -2.07 2.02 -0.27 - 324.96
Treed Coniferous -112.95 523.24 515.05 -199.93 -2 921.05 -170.05 2 106.27 810.11 41.80 -3.77 100.36 - 689.09
Total -177.82 768.19 222.54 -299.04 -3 360.63 339.06 2 261.56 838.46 41.58 0.00 102.79 -224.08 512.61
Source: Canada's National Forest Inventory, combined remeasured (2007-2017) and projected (2006-2017 with NFI projection system) data, where plots with strong indicators of artificial change are removed. Artificial change between successive plot measurements can be caused by using different image sources, incorporating vintage baseline inventories, and updating photo-interpretation techniques (Version 3.1, November 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.