The mapping of land capability for forestry is based on a
national classification system comparable with the other Canada
Land Inventory sectors. Land is rated according to seven classes
on its capability to grow commercial timber in areas stocked
with the optimum number and species of trees. This rating
considers the land in its natural state, without improvements
such as fertilization, drainage, or amelioration practices. Land
ratings and classes may change, however, significant changes
will only be achieved through costly and continuing practices.
The best lands for tree growth are Class 1 while Class 7 land
can not yield timber in commercial quantities, these represent
the extremes. The capability mappings have a scale of 1:250,000
and are accomplished through interpretation of air photographs
and field surveys. Purpose: Assigning land units to a capability
class serves as an inventory tool for resource planning and
utilization. |Autor||Government of Canada, National Archives of
Canada, Visual and Sound A