Historical evidence and climatic implications of a shift in the boreal forest tundra transition in central Canada
- Timothy F. Ball
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The line that marks the boundary between the boreal forest and the tundra regions is a relatively abrupt line in central Canada and appears to reflect a clearly defined climate boundary. Research suggests that relatively small changes in the climatic conditions should result in a movement of the treeline. Such a movement was apparently reported in 1772 by Samuel Hearne based upon the observations of generations of Indians who had lived in the area. A map of his voyages indicates a tree limit that was further west in the north/south section of western Canada and further south in the east/west section of central Canada. This location and subsequent movement appears to be logical in relation to the climatic conditions that occurred in the region as a result of the Little Ice Age and the warmer conditions thereafter.
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- Historical evidence and climatic implications of a shift in the boreal forest tundra transition in central Canada
Volume 8, Issue 2 , pp 121-134
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- Timothy F. Ball (1)
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- 1. Department of Geography, University of Winnipeg, 515 Portage Avenue, R3B 2E9, Winnipeg, Manitoba, Canada