THE EFFECT OF DISTURBANCE ON PERMAFROST TERRAIN.

• Main Authors: Brown,Jerry, Rickard,Warren, Vietor,Donald
• Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H
• Format: Text
• Language: English
• Published: 1969
• Subjects: Soil Mechanics; Snow; Ice and Permafrost; (*PERMAFROST; STRESSES); (*SOILS; EROSION); DEGRADATION; ICE; MELTING; DRAINAGE; FOUNDATIONS(STRUCTURES); CRACKS; BUILDINGS; PLANTS(BOTANY); SWAMPS; BULLDOZERS; DAMAGE; PENETRATION; TERRAIN; FIRES; ALASKA; ARCTIC SOILS; PEAT; TUNDRA; Arctic; Ice; permafrost; Tundra; Alaska
• Online Access: http://www.dtic.mil/docs/citations/AD0699327; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0699327

The influence of surface cover on thaw penetration in alpine and arctic soils of Alaska was determined. Several manipulated treatments were employed: removal of all vegetation, mulching, shearing and fire. Thaw and subsidence more than doubled on the bare and sheared plots and increased up to 50% on the burned areas. Bulldozing of and traffic over ice-rich permafrost terrain resulted in considerable erosion and thaw. (Author)