Introduction and Overview
Background Information
In 1991 the Forest Resources Commission recommended
a review of the provincial resource inventory
process in its report The Future of our Forests. The
result of that was a re-design of the inventory
which resulted in the Vegetation Resources Inventory
(VRI). The VRI is a photo-based, two-phased vegetation
inventory design consisting of:
Within the ground sampling phase, Net
Volume Adjustment Factor (NVAF) sampling is a
mandatory component that is integral in the
calculation of inventory adjustment factors.
Vegetation Resources Inventories are
typically funded by government.
There is no re-inventory cycle per se and the
decision of conducting a VRI is based on a
number of factors including age of the
inventory, known problems of the inventory, recent
catastrophic events (such as mountain pine beetle)
and other emerging issues that require a new
inventory.
Updating of the inventory due to changes in
the forest such as harvesting, fire and other
catastrophic events are done through electronic data
submissions from licensees and as well through a
combination of mapping from satellite imagery,
aerial photography and Global Positioning System
mapping. The Inventory is updated continuously.
The VRI is housed on the Land and Resource
Data Warehouse (LRDW)
http://geobc.gov.bc.ca/
where the data can be viewed and downloaded.
How do I find out more?
Further information on the Vegetation Resources Inventory program
can be obtained by contacting Albert
Nussbaum Director, Forest Analysis and Inventory Branch at 250-356
5958 or Albert.Nussbaum@gov.bc.ca