UBC Archives Audio Recordings Collection

[In his own voice: recordings of a series of lectures by Dr. Vladimir J. Krajina on the Biogeoclimatic Zones of British Columbia, Lecture 1B] Krajina, Vladimir J.


Dr. Krajina talks about the two northern biogeoclimatic zones – Boreal White and Black Spruce (BWBS), and Sub-Boreal Spruce (SBS) – and the three Canadian Cordilleran Montane zones – Cariboo Aspen-Lodgepole Pine (CALP, no longer recognized), Interior Western Hemlock (IWH), and Interior Douglas Fir (IDF). He speaks about how factors such as photoperiodism, soil nutrients, and climate, especially the effects of cold air drainage and unusually cold winters, can influence the distributions and growth of tree species (Engelmann and white spruce, subalpine fir, Douglas fir).

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