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Soils of the Laloanea Farm, Northwestern Upolu, Western Samoa

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Item Summary Morrison, R.J. Asghar, M. 2008-06-06T08:20:08Z 2008-06-06T08:20:08Z 1992-01
dc.identifier.citation Morrison RJ, Asghar M. 1992. Soils of the Laloanea Farm, northwestern Upolu, Western Samoa. Pac Sci 46(1): 35-45.
dc.identifier.issn 0030-8870
dc.description.abstract Soils of the Laloanea Farm (40 ha), in the uplands of northwestern Upolu, Western Samoa, were studied by an examination of nine pedons composing two toposequences, one running S-N and the other W-E across extensive portions of the farm. Over short distances considerable variability in the soils has led to their classification into two soil orders of Soil Taxonomy (Entisols and Inceptisols), two suborders, three great groups (Troporthents, Humitropepts, and Dystropepts), four subgroups, and seven families. Major factors contributing to the variability were depth to basaltic boulders or flow rock, presence or absence of a cambic horizon, amount of organic carbon in the profile, particle size distribution in the control section, and occurrence in some pedons of andic properties. Soils all had an oxidic mineralogy class and an isohyperthennic soil temperature regime. Relationship of the factors affecting variability to topographic position is discussed, together with an overview of the physical, chemical, and mineralogical properties of the soils. Similar variability might be expected in other humid tropical situations on young basaltic landscapes with steep, rolling, and benched terrain.
dc.language.iso en-US
dc.publisher University of Hawai'i Press
dc.title Soils of the Laloanea Farm, Northwestern Upolu, Western Samoa
dc.type Article
dc.type.dcmi Text
Appears in Collections: Pacific Science Volume 46, Number 1, 1992

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