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Title: Wallum on the Nabiac Pleistocene barriers, lower North Coast of New South Wales
Contributor(s): Griffith, Stephen J (author); Wilson, R (author)
Publication Date: 2007
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Abstract: Wallum is widespread on coastal dunefields, beach ridge plains and associated sandy flats in northern NSW and southern Queensland. These sand masses contain large aquifers, and the wallum ecosystem is considered to be generally groundwater-dependent. This study describes the floristic composition and environmental relations of wallum on a Pleistocene barrier system at Nabiac (32°09'S 152°26'E), on the lower North Coast of NSW. Despite their minimal elevation and degraded relief, the Nabiac barriers maintain floristic patterns related to topography and hence groundwater relations. Comparative analyses identified the Nabiac wallum as representative of the ecosystem throughout large parts of its range in eastern Australia. The Nabiac wallum and nearby estuarine and alluvial vegetation supports species and communities of conservation significance. A borefield is proposed for development on the Nabiac barriers, thereby providing a valuable opportunity for research into mechanisms of groundwater utilisation by the wallum ecosystem.
Publication Type: Journal Article
Source of Publication: Cunninghamia, 10(1), p. 93-111
Publisher: National Herbarium of New South Wales, Royal Botanic Gardens
Place of Publication: Sydney, Australia
ISSN: 0727-9620
Field of Research (FOR): 060208 Terrestrial Ecology
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
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