THE EFFECT OF DISTURBANCE ON PERMAFROST TERRAIN.

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...

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Bibliographic Details
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
Description
Summary: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)

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