Climatic and Ecological Drivers of Forest Structure and Species Composition across Canada
Across Canada, stand structure, species associations, and productivity vary according to climate regime, topographic position, access to moisture, radiation, and soil attributes. At the national level we will have access to a unique database of 25,000 km of small-footprint, discrete-return, airborne LiDAR transects which were collected in 2010 spanning the entire forested boreal area of Canada (Wulder et al., 2012, Hopkinson et al., 2011).
This dataset will be used in combination with the four core study sites to address the questions and build on research already undertaken by theme members and researchers from the CFS and CWFC. The boreal transect will form the basis for the cross-country comparison of stand and regional differences in stand structure as well as an examination of the drivers of this structure. At the provincial level, we also have access to transect LiDAR data that was flown over Newfoundland. These transect datasets offer a unique opportunity to examine up-scaling and sampling error on regional estimates as well as assess the utility of full coverage satellite imagery and geographic data to produce regional assessments of key forest attributes.
Theme 1 Questions
What is the relative impact of ecological drivers such as disturbance, productivity, management practices, and species composition on broad-scale variations in stand structure and wood properties across Canadian forests and how can these be scaled up regionally?
Ecological Drivers / Implications for Management
- Q1: What is the relative impact of ecological drivers on stand structure across Canadian forests and what metrics best capture this structural variation?
Structural Variability and Wood Properties
- Q2: How can forest structural metrics assessed from LiDAR be used to assess changes in timber for log supply into processing mills?
Sampling Approaches for Regional Level Reporting