Canada's Forest Inventory 2001 - Publications du gouvernement du ...

New forest or vegetation resource inventory
These are data from detailed, intensive forest or vegetation inventories in which the forest types are
usually mapped in detail with estimates given for each type (Haddon 1988). These inventories are compiled
for management purposes to determine data such as area, condition, volume and species, and are
usually created using information from aerial remote sensing platforms in combination with information
from ground samples. In CanFI2001, these are either new inventories or inventories which have been
developed with the use of models.
Older forest or vegetation inventory data resubmitted
These data are similar to, but older than, the data within new forest or vegetation resource inventories.
These older inventory data were used in previous versions of CanFI, having been converted to the CanFI
classifiers current at that time, but have since been converted to CanFI2001 classifiers and resubmitted. As
land-cover classifiers are more detailed in CanFI2001, this allows capture of more detail from the source
inventory than was stored in earlier versions of CanFI.
Data re-used from earlier versions of CanFI
These forest inventory data were re-used directly from earlier versions of CanFI: the source data were not
re-converted to CanFI2001 classifiers.
Satellite imagery
This consists of data collected from space-based sensors. The resolution of the data as used in CanFI2001
varies with the sensor, from 30-m (Landsat data) to 1-km (SPOT-VGT and AVHRR data) resolution. The
type of information collected is more generalized than that collected for management purposes, and does
not include condition, species, or volume estimates.
These include SPOT–VGT (Systèm pour l’Observation de la Terre–VEGETATION), AVHRR
(Advanced Very High Resolution Radiometry), Landsat data in Ontario, South Digital Land Cover data in
Saskatchewan, Alberta Ground Cover Classification, Prairie Farm Rehabilitation Administration generalized
landcover, as well as data for Wood Buffalo National Park. In Figure 2, these areas are represented as
more recent datasets (up to 10 years old).
Other surveys
These include ecological land classifications of national parks (Gwaii Hanaas and Kouchibouguac
national parks), the Native Prairie Vegetation Inventory in Alberta, and records added by the Canadian
Forest Service (for the Great Lakes, Smallwood Reservoir, and other areas for which data were missing).
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