Characteristics of coral cay soils at Coringa-Herald coral sea Islands

Batianoff, George N., Naylor, Gillian C., Fensham, Rod and Neldner, John (2010) Characteristics of coral cay soils at Coringa-Herald coral sea Islands. Pacific Science, 64 2: 335-347. doi:10.2984/64.2.335

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Author Batianoff, George N.
Naylor, Gillian C.
Fensham, Rod
Neldner, John
Title Characteristics of coral cay soils at Coringa-Herald coral sea Islands
Journal name Pacific Science   Check publisher's open access policy
ISSN 0030-8870
1534-6188
Publication date 2010-04
Sub-type Article (original research)
DOI 10.2984/64.2.335
Volume 64
Issue 2
Start page 335
End page 347
Total pages 13
Editor Curtis C. Daehler
Place of publication Honolulu, HI, U.S.A.
Publisher University of Hawaii Press
Collection year 2011
Language eng
Subject C1
050399 Soil Sciences not elsewhere classified
960502 Ecosystem Assessment and Management of Antarctic and Sub-Antarctic Environments
961401 Coastal and Estuarine Soils
050104 Landscape Ecology
Formatted abstract
Coral cay soil chemical and physical properties were described from Coringa-Herald National Nature Reserve, Australia. Soil A horizons under littoral herblands and Argusia argentea shrubs were shallow and coarse textured. Interior soil A horizons, particularly under Pisonia grandis closed forest, were deeper (1.2 m) with finer textures. Average surface soil pH values ranged from pH 8.76 at the seashores to pH 8.09 in the interior. Average surface soil organic carbon ranged from 2.4% to 4.8%; and phosphorus (Colwell-P) concentrations ranged from 467 mg/kg to 882 mg/kg within the interior areas. Chemical fertility of all A horizons increased from the seashore to the island interior. The higher fertility levels are attributed to high organic matter contributed by vegetation, combined with activities of seabirds, particularly the burrowing wedgetailed shearwater, Puffinis pacificus. Leaching of nutrients from surface soils is reflected in the rapid decline in soil fertility with depth. Deeper interior A horizons are interrupted by formation of an abrupt white C profile. It is speculated that the formation of this layer is the product of periodic "washing" by a seasonally high fresh/brackish water table.
© 2010 by University of Hawai'i Press.
Keyword Pisonia-grandis
Nyctaginaceae
Mycorrhizal
Ecosystem
Fungi
Reef
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2011 Collection
School of Biological Sciences Publications
 
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Created: Wed, 29 Sep 2010, 12:36:49 EST by Joni Taylor on behalf of School of Biological Sciences