Perennially Frozen Peatlands in the Western Arctic and Subarctic of Canada

作者：S. C. Zoltai, C. Tarnocai · 发表于：Canadian Journal of Earth Sciences · 年份：1975 · DOI：10.1139/e75-004 · 被引用次数：192 · 研究领域：Peatlands and Wetlands Ecology、Climate change and permafrost、Geology and Paleoclimatology Research

Perennially frozen peatlands were divided into five morphological types: peat plateaus, polygonal peat plateaus, palsas, fen ridges and lowland polygons. One hundred and eight different peatlands were cored, measured and sampled. The internal structure of all but the lowland polygons suggests that the peat was deposited in wet fens unaffected by permafrost, and that permafrost developed only after a thin layer of Sphagnum covered them. The lowland polygons evolved in a permafrost environment. The study area was divided into four regions oh the basis of predominance of different peatlands forms.