Table 18.0. Total above-ground biomass (million tonnes) on forest land by species group and age class in Canada.
Species group 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
Spruce 55.30 348.68 1 080.96 1 775.55 2 560.63 3 165.25 2 527.74 1 053.71 290.69 114.80 559.11 3.38 13 535.82
Poplar 105.77 314.32 534.24 1 133.44 1 005.80 460.12 215.65 81.44 10.93 8.34 9.39 0.23 3 879.67
Pine 79.35 321.19 353.83 546.56 571.59 466.84 393.51 226.29 95.47 43.17 99.01 0.41 3 197.21
Fir 23.48 180.69 293.42 250.47 319.95 161.63 163.96 148.12 135.68 105.65 706.09 0.18 2 489.31
Hemlock 6.47 45.91 89.32 83.18 89.27 44.38 50.07 29.29 37.78 23.49 1 209.71 0.00 1 708.86
Maple 10.62 46.15 283.28 366.51 341.92 82.85 10.96 4.64 3.31 0.00 0.48 0.01 1 150.73
Birch 24.31 126.85 255.77 282.42 271.03 86.50 22.14 6.64 0.54 0.73 1.14 0.20 1 078.27
Douglas-fir 2.52 19.63 79.46 113.31 131.43 168.74 167.26 126.59 43.90 37.89 186.49 0.00 1 077.22
Cedar & other conifers 2.50 13.91 35.60 32.37 40.44 31.37 15.03 14.94 13.38 20.56 602.61 0.00 822.72
Larch 8.98 21.75 58.13 77.70 78.18 63.81 44.13 18.66 5.98 2.35 10.96 0.11 390.75
Unspecified conifers 70.77 81.50 19.77 4.73 0.81 0.00 0.00 0.00 0.00 0.00 0.00 0.15 177.73
Other hardwoods 1.61 14.59 49.30 53.11 36.28 12.35 2.52 0.93 0.15 1.15 4.03 0.03 176.06
Unclassified 1.58 < 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 92.87 94.45
Unspecified hardwoods 43.07 21.98 14.13 2.70 6.71 0.28 0.11 0.00 0.00 0.00 0.00 < 0.01 88.98
Total 436.33 1 557.16 3 147.21 4 722.04 5 454.04 4 744.11 3 613.07 1 711.27 637.82 358.12 3 389.03 97.58 29 867.78
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 Missing or unknown age class.