1. Department of Geography and Planning, Queen’s University, Kingston K7L 3N6, Canada;
2. Department of Forest Resources Management, University of British Columbia, Vancouver V6T 1Z4, Canada;
3. Forestry Resource Inventory Unit, Ontario Ministry of Natural Resources and Forestry, North Bay P1A 4L7, Canada;
4. Canadian Wood Fibre Centre, Canadian Forest Service, Natural Resources Canada, Sault Ste. Marie P6A 2E5, Canada