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| | Arctic: Tree and tundra cover anomalies in the subarctic forest-tundra of northwestern Canada (Site not responding. Last check: 2007-10-19) |
 | | Within the high subarctic of northwestern Canada, zonal vegetation is open crown conifer forests, dwarf shrub tundras, and forest-tundras (single-stemmed and clonal spruce and larch in a tundra matrix), and zonal soils are Cryosols and Brunisols. |
 | | Because zonal vegetation is not subjected to extremes of climate or soil conditions, gradients in percent cover of subarctic tree and tundra vegetation generally correspond to synoptic climatic gradients, and assume the form of a sigmoid wave (Timoney et al., 1992, 1993b). |
 | | Factors that might account for the observed vegetation patterns were sought by reference to studies of subarctic climate, soils, parent materials, and vegetation and, for local elevations and landforms, by reference to the airphoto database constructed for this study. |
| www.findarticles.com /p/articles/mi_qa3712/is_199503/ai_n8714074 (1314 words) |
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