Bogs in the Tundra Zone of Siberia

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TypeTechnical Report
Series titleTechnical Translation, National Research Council Canada; Volume 1925
Physical description14 p.
SubjectPermafrost; Soils; swamps; tundras; cold regions; peat
AbstractBogs are an integral part of the tundra terrain of the plains. In the tundra zone they occasionally occupy up to 70% of the area. Estimates are that bogs in Western Siberia occupy 6.1 million hectares. The main type of tundra bog, including polygonal bogs, occurs on flat undrained water divides, on the bottom of drained lakes, on terraces and in river valleys. The polygonal forms are due mainly to the effect of frost fracturing accompanied by cryogenic and geological processes such as thermokarst, formation of ice inclusions, etc. Different morphological varieties of polygonal bogs have been noted and types such as ridged- polygonal, concave-polygonal and flat-polygonal are well known. On this basis a typological classification has been developed for the tundra zone. Apart from polygonal bogs there are also bogs of uniform structure in the tundra such as grassy shrub-covered, shrub-covered and moss-covered etc. These types occur around lakes, in run-off depressions and on other terrain forms, and can be classified on the basis of occurrence and vegetation. Their vegetation is usually fairly uniform and is represented by several species of flowering plants and mosses.
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AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
NRC number836
NPARC number20331505
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Record identifier69b7280d-b02d-4948-8285-c5e1732a5015
Record created2012-07-18
Record modified2016-10-03
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