Skip to main content

Table 1 Comparison of the main features of forests and forestry, and the condition of young and old forest successional stages, in north-eastern Canada and Fennoscandia

From: Young and old forest in the boreal: critical stages of ecosystem dynamics and management under global change

 

North-eastern Canada

Fennoscandia

Type of management

Extensive

Intensive

 Type of forest harvested

Cutting natural forest and moving towards north. In certain regions starting to harvest second growth forests

Cutting mostly second growth as forest mostly managed. Some natural forest still harvested

 Dominant management type

Even-aged management with clearcutting and advance regeneration protection

Even-aged management with clearcutting followed by planting with native species

 Protected productive forest

<  8% (Andrew et al. 2014)

<  6% (regionally highly variable)

 Cutting rotation vs natural disturbance (fire) cycle

Rotation 60–90 years for Black spruce forests; fire cycle 90–300 years

Rotation 60–120 depending on site type and geographic location; fire cycle 60–300+ years (currently fires practically excluded by suppression)

Old forest

 Quantity

Decreased but still remain in large patches in certain regions

Amount collapsed but some larger patches remain in northern protected less productive areas

 Quality

Partly natural, in northern less productive areas

Partly natural, in northern protected less productive areas

 Dead wood amounts

17–160 m3∙ha−1 in natural vs. 10–153 m3∙ha− 1 in managed forests

60–120 m3∙ha− 1 in natural vs. 4–10 m3∙ha− 1 in managed forests

 Threats

Cuttings, climate change, increasing disturbances

Cuttings, climate change, increasing disturbances

Young forest

 Quantity

Increased

Increased substantially

 Quality

Natural regeneration after clearcut harvesting in parts

Mostly soil scarification and planting after clearcutting, thinning of young forest, scarcity of dead wood.

 Management practises

Natural regeneration after natural disturbances in parts

Retention trees left on clearcuts, natural young forests practically lacking

 Threats

Increasing amount of salvage logging after natural disturbance, regeneration failure

Increasing harvesting of all biomass components, regeneration failure