Forest tree species and the impact of climate change and variability
The Canadian Forest Service's Climate change network long-term mission seeks to determine and assess the sensitivity of Canadian forests to climate change and provide scientific knowledge for formulating strategies for mitigating and/or adapting to changing
- Assess the sensitivity, acclimation and adaptation responses of natural and pedigree populations from the impact of climate change for at risk and/or keystone tree species.
- Scale up results by modeling species response to different climate change scenarios.
- Important timber species
- In decline over much of its range
- Low genetic variation compared to other conifers
- Can hybridize with black spruce
- Important component of Acadian old growth forest
- A species at risk from human activities
- Important pulp and paper species
- Pioneer characteristics
- Generally cold tolerant
- Trans-Canadian species
- Red spruce and black spruce hybrids
- Can occur naturally, extent and role unknown
- Little known about adaptive traits of hybrids
The same red spruce and black spruce are growing in various controlled environmental chambers and silvicultural conditions.
- Natural populations of both red spruce and black spruce from three provinces (ON, NB, NS) are compared.
- Hybrids: controlled crosses to produce black spruce, red spruce and three intermediate types (0 [Sb], 25, 50, 75, 100 [Sr]).
Four main areas of study have been developed:
- Elevated carbon dioxide research
- Freezing tolerance research
- Drought tolerance research
- Advance productivity and environment specific yield research