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Importance of Cryoturbation in Redistributing Organic Carbon in Permafrost-Affected Soils

Dep. of Soil Science, Univ. of Wisconsin, 1525 Observatory Dr., Madison, WI 53706-1299

View larger version (135K): [in this window] [in a new window]   Fig. 1. Examples of cryoturbated soil organic matter in northern Alaska: (A) buried and redistribution soil organic carbon (SOC) in sandy alluvium of the Meade River, Atqasuk; (B) patches of redistributed SOC in sandy alluvium of the Meade River, Atqasuk; (C) cryoturbation in Spodosol-like soil (Psammoturbel) in sandy alluvium near Okpikpak River, northern Alaska; and (D) SOC concentrated in near-surface permafrost of a drained thaw-lake basin, northern Alaska.