Table 9.1a. Relative standard errors (%) of area of forest land by IUCN1 category, age class and terrestrial ecozone in Canada.
Terrestrial ecozone IUCN category Age (years)
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 37.9 26.0 9.2 5.6 1.8 10.6 12.5 17.2 25.3 67.6 41.2 26.7
Ib 0.0 100.3 30.4 30.0 98.4 97.7 100.4 100.4 97.1 0.0 100.3 0.0
II 100.0 100.0 26.4 27.1 16.7 59.1 100.0 0.0 0.0 0.0 0.0 0.0
III 0.0 0.0 0.0 100.0 47.9 0.0 0.0 0.0 0.0 0.0 0.0 0.0
V 0.0 0.0 0.0 0.0 97.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Other 0.0 0.0 0.0 51.8 37.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Taiga Shield NA 43.8 51.9 67.9 6.1 4.2 2.5 3.2 59.3 0.0 0.0 0.0 4.1
Ib 0.0 0.0 0.0 0.0 80.1 19.1 0.0 0.0 0.0 0.0 0.0 30.2
II 0.0 0.0 0.0 0.0 36.6 20.7 0.0 0.0 0.0 0.0 0.0 100.0
III 0.0 0.0 0.0 0.0 99.0 73.4 100.1 0.0 0.0 0.0 0.0 0.0
V 0.0 0.0 0.0 0.0 100.0 100.0 0.0 0.0 0.0 0.0 0.0 0.0
Boreal Shield NA 3.5 3.4 2.9 2.3 1.9 2.9 5.7 8.0 17.2 47.1 51.6 3.8
Ia 53.2 71.6 52.8 55.2 44.1 67.5 100.0 0.0 0.0 0.0 0.0 99.1
Ib 54.4 32.3 25.6 14.7 16.9 28.6 29.4 52.2 73.6 100.0 0.0 44.8
II 21.6 19.4 12.8 11.9 11.3 15.9 18.2 29.0 53.7 69.3 58.1 40.4
III 51.5 36.7 28.6 26.8 23.2 18.5 100.0 0.0 0.0 0.0 0.0 13.2
IV 100.0 100.0 59.1 58.6 64.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
VI 84.6 77.5 59.8 82.3 72.0 69.8 79.4 0.0 0.0 0.0 0.0 95.0
Other 100.0 0.0 81.6 99.9 100.0 100.0 0.0 0.0 0.0 0.0 0.0 0.0
Atlantic Maritime NA 4.0 5.1 3.5 4.7 7.1 12.9 28.1 65.7 100.0 98.4 100.0 9.7
Ia 100.0 70.3 94.5 70.8 86.3 100.0 0.0 0.0 0.0 0.0 0.0 100.0
Ib 94.8 87.4 47.8 51.7 73.9 100.0 0.0 0.0 0.0 0.0 0.0 2.8
II 42.8 59.5 34.2 36.7 49.1 69.5 85.4 0.0 0.0 0.0 0.0 100.0
III 100.0 0.0 0.0 0.0 100.0 100.0 0.0 0.0 0.0 0.0 0.0 0.0
IV 61.6 65.2 61.6 44.6 41.6 71.0 0.0 99.6 0.0 0.0 0.0 79.0
VI 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Mixedwood Plains NA 8.8 7.5 6.9 9.6 17.2 29.2 38.5 71.2 0.0 0.0 0.0 26.9
Ia 100.0 61.9 92.3 93.1 99.9 0.0 0.0 0.0 0.0 0.0 0.0 0.0
II 59.3 64.2 62.1 57.9 71.5 100.0 0.0 100.0 0.0 0.0 0.0 0.0
III 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
IV 0.0 0.0 99.9 0.0 99.9 99.9 0.0 0.0 0.0 0.0 0.0 99.9
VI 0.0 0.0 100.1 0.0 100.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Other 0.0 100.0 0.0 0.0 0.0 100.0 100.0 0.0 0.0 0.0 0.0 100.0
Boreal Plains NA 9.6 6.8 4.2 3.9 4.3 5.3 6.9 11.5 19.4 26.0 41.9 8.0
Ia 0.0 100.0 100.0 51.8 70.0 100.0 100.0 0.0 0.0 0.0 0.0 0.0
Ib 51.5 47.8 35.4 27.8 35.8 60.8 85.7 76.8 84.0 100.0 0.0 0.0
II 61.7 33.0 14.2 12.0 24.0 27.3 67.9 65.5 78.1 100.0 100.0 97.8
III 0.0 73.2 62.3 81.6 71.2 0.0 100.1 0.0 0.0 0.0 0.0 0.0
IV 87.4 64.9 58.2 60.3 65.3 87.6 100.0 0.0 0.0 0.0 0.0 86.3
V 100.0 85.8 76.6 88.3 81.3 67.2 100.0 0.0 0.0 0.0 0.0 100.0
VI 78.3 66.1 79.1 53.2 63.1 70.8 0.0 0.0 100.0 0.0 0.0 100.0
Prairies NA 95.1 95.8 22.4 13.9 14.6 77.9 0.0 100.0 0.0 0.0 0.0 35.1
Ib 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
II 0.0 0.0 63.5 70.8 90.8 95.3 0.0 0.0 0.0 0.0 0.0 0.0
III 0.0 0.0 100.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 100.0
IV 0.0 0.0 99.2 61.9 47.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0
V 100.0 0.0 100.0 90.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
VI 0.0 0.0 100.0 98.2 67.4 0.0 0.0 0.0 0.0 0.0 0.0 100.0
Taiga Cordillera NA 93.2 21.4 20.8 14.4 23.7 5.6 40.4 65.2 100.0 0.0 0.0 0.0
Ib 0.0 0.0 0.0 99.2 0.0 33.8 0.0 0.0 0.0 0.0 0.0 0.0
II 0.0 0.0 0.0 76.6 100.0 40.7 0.0 0.0 0.0 0.0 0.0 0.0
III 0.0 0.0 0.0 100.0 0.0 100.0 0.0 0.0 0.0 0.0 0.0 0.0
IV 0.0 89.2 100.0 100.0 0.0 50.8 0.0 0.0 0.0 0.0 0.0 0.0
V 0.0 0.0 0.0 99.9 0.0 99.9 0.0 0.0 0.0 0.0 0.0 0.0
Other 0.0 0.0 0.0 99.9 0.0 86.0 0.0 0.0 0.0 0.0 0.0 0.0
Boreal Cordillera NA 32.0 9.9 8.9 7.5 6.5 7.1 11.3 12.6 14.1 20.2 8.4 35.4
Ia 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Ib 0.0 55.7 54.2 52.0 75.4 46.6 38.9 39.0 30.0 62.2 20.4 0.0
II 0.0 100.0 74.0 74.8 52.4 49.3 63.6 57.1 64.3 100.0 67.5 0.0
IV 0.0 72.1 74.8 72.2 60.7 89.9 100.0 0.0 0.0 0.0 54.0 0.0
Pacific Maritime NA 22.2 12.5 14.0 14.4 15.0 15.1 21.1 18.1 16.3 18.2 5.0 11.0
Ia 0.0 0.0 0.0 100.1 0.0 100.1 89.5 100.1 0.0 0.0 0.0 100.1
Ib 0.0 100.0 100.0 88.7 100.0 54.8 93.2 70.9 98.9 96.8 38.1 100.0
II 100.0 54.7 63.3 35.6 46.5 45.6 60.0 74.6 43.6 45.0 15.7 44.4
III 0.0 77.9 0.0 100.0 0.0 0.0 0.0 0.0 0.0 0.0 87.2 0.0
IV 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 100.1 0.0
Montane Cordillera NA 11.4 8.7 10.4 7.0 5.9 5.6 5.3 5.9 6.8 8.0 5.1 9.6
Ia 100.0 0.0 0.0 100.0 0.0 0.0 0.0 100.0 100.0 100.0 100.0 0.0
Ib 0.0 74.2 50.4 30.4 35.2 35.6 26.1 40.4 43.2 30.7 25.5 100.0
II 99.4 66.5 31.7 26.7 20.7 19.4 18.1 16.1 20.2 21.1 17.2 98.0
III 0.0 0.0 0.0 0.0 100.0 100.0 99.7 100.0 0.0 0.0 100.0 0.0
IV 0.0 100.0 0.0 0.0 71.1 8.0 99.9 100.0 100.0 0.0 100.0 0.0
VI 0.0 0.0 100.0 100.0 100.0 100.0 100.0 0.0 0.0 0.0 0.0 100.0
Hudson Plains NA 49.5 66.9 33.1 27.4 4.0 5.1 48.9 85.3 0.0 0.0 0.0 13.0
Ia 0.0 0.0 0.0 0.0 100.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Ib 100.0 100.0 0.0 78.1 25.7 44.8 0.0 0.0 0.0 0.0 0.0 0.0
II 0.0 0.0 0.0 68.8 53.2 29.6 0.0 100.1 0.0 0.0 0.0 63.4
III 0.0 0.0 0.0 0.0 71.1 90.8 0.0 0.0 0.0 0.0 0.0 100.0
Canada NA 2.6 2.4 1.9 1.6 1.1 1.5 2.2 4.0 5.5 6.7 3.3 2.4
Ia 47.4 58.6 38.8 38.5 35.0 65.1 61.3 82.2 100.0 100.0 100.0 96.7
Ib 38.4 22.6 15.8 10.7 12.5 12.0 17.7 25.5 24.5 27.9 14.7 25.1
II 19.1 15.3 8.5 7.4 7.6 9.0 13.2 13.7 17.0 18.9 11.4 26.4
III 48.7 30.9 27.5 25.7 20.2 17.7 66.6 100.0 0.0 0.0 84.7 71.2
IV 48.3 37.9 32.9 34.6 26.5 38.2 70.3 70.9 100.0 0.0 62.3 83.6
V 98.7 85.8 94.7 78.6 64.8 86.7 100.0 0.0 0.0 0.0 0.0 100.0
VI 78.5 60.9 41.8 57.4 61.7 68.9 80.7 0.0 100.0 0.0 0.0 79.3
Other 100.0 100.0 81.6 51.5 35.3 66.7 100.0 0.0 0.0 0.0 0.0 100.0
Source: Canada's National Forest Inventory, revised 2006 baseline (Version 3, December 2013) (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. The total area amounts to 262,189.89 thousand ha.
1 IUCN: International Union for Conservation of Nature (http://www.iucn.org). Data obtained from Conservation Areas Reporting and Tracking System (CARTS) (http://http://www.ccea.org/en_carts.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