ABSTRACT

Canada have been described by Rowe (1972), and this classification is still relevant today in considering fire regimes. Locally, forest regions are further divided based on climate and resulting vegetation into ecozones or ecoregions (e.g., Strong and Leggat 1981 for Alberta), or biogeoclimatic zones in British Columbia (BC) (Meidinger and Pojar 1991). Inherent in each of these classifications is an understanding of the typical stand development history and resulting climax forest condition. Forests with similar stand development histories can be grouped according to how natural disturbances either initiate or maintain that stand condition. As most of Canada, particularly the remaining forested areas, has a fairly recent development history, ecologists have been able to describe and map what are considered natural disturbance regimes for the various landscapes.