Canadian Forest Service Publications
Enhancing forest inventories with mountain pine beetle infestation information. 2005. Wulder, M.A.; Skakun, R.S.; Franklin, S.E.; White, J.C. Natural Resources Canada, Canadian Forest Service, Pacific Forestry Centre, Victoria, BC. Mountain Pine Beetle Initiative Working Paper 2005-18. 24 p.
Available from: Pacific Forestry Centre
Catalog ID: 25526
CFS Availability: PDF (download)
Polygon decomposition is an approach for integrating different data sources within a GIS. We use this approach to understand the impacts associated with mountain pine beetle red-attack. Three different sources of red-attack information are considered: aerial overview sketch mapping, helicopter GPS surveys, and Landsat imagery. Existing inventory polygons are augmented with estimates of the proportion and area of red-attack damage. Although differences are found in the area of the infestation, the affected forest stands have similar characteristics. Polygon decomposition adds value to existing forest inventories through update and the incorporation of new attributes applicable to forest management.