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dc.contributor.authorCampbell, Iain B.
dc.contributor.authorClaridge, G.G.C.
dc.contributor.authorBalks, Megan R.
dc.date.accessioned2008-08-11T04:20:54Z
dc.date.available2008-08-11T04:20:54Z
dc.date.issued1994
dc.identifier.citationCampbell, I. B., Claridge, G. G. C., & Balks, M. R. (1994). The effect of human activities on moisture content of soils and underlying permafrost from the McMurdo Sound region, Antarctica. Antarctic Science, 6(03), 307-314.en_US
dc.identifier.issn0954-1020
dc.identifier.urihttps://hdl.handle.net/10289/934
dc.description.abstractSoils and the underlying permafrost from undisturbed sites and sites that had been disturbed by construction activities at Marble Point and Pram Point in the McMurdo Sound region were sampled from excavated pits and drill cores. Gravimetric moisture (ice) contents and particle size distribution were determined. Volumetric moisture contents were calculated from these results. At undisturbed sites soil moisture contents within the active layer (to c. 60 cm depth) were low and ranged from 0.5% by weight at the soil surface to 10% above the permafrost. The permafrost was generally completely saturated with ice, but sometimes contained considerable excess ice, with ice contents rising as high as 80% by volume. At disturbed sites, soil moisture contents within the active layer were similar to those of the undisturbed sites (generally <10% by weight) but within the permafrost, moisture contents were lower and less variable than in the undisturbed sites, rarely exceeding 20% by weight. The release of considerable quantities of water from the permafrost as a result of land disturbance during construction activities caused stream flows, soil shrinkage, land slumping and salinisation, resulting in significant permanent environmental damage. At Marble Point there has been no significant re-establishment of icy permafrost in the disturbed soils in the 30 years since land disturbance occurred.en_US
dc.format.mimetypeapplication/pdf
dc.language.isoen
dc.relation.urihttp://journals.cambridge.org/action/displayJournal?jid=ANSen_US
dc.rightsThis article is published in the journal, Antarctic Science. Copyright © Antarctic Science Ltd 1994.en_US
dc.subjectAntarcticaen_US
dc.subjectenvironmental damageen_US
dc.subjectMcMurdo Sounden_US
dc.subjectmoisture contenten_US
dc.subjectpermafrosten_US
dc.subjectsoilsen_US
dc.titleThe effect of human activities on moisture content of soils and underlying permafrost from the McMurdo Sound region, Antarcticaen_US
dc.typeJournal Articleen_US
dc.identifier.doi10.1017/S0954102094000477en_US


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