New Zealand Journal of Botany abstract

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B97062
Received 8 September 1997; accepted 8 December 1997

Fine resolution palynology of Erua Swamp, Tongaririo, New Zealand, since the Taupo Tephra eruption of c. 1718 B.P.

M. HORROCKS
J. OGDEN

School of Environmental and Marine Science
The University of Auckland
Private Bag 92-019
Auckland, New Zealand

Abstract  Fine resolution pollen analysis of a core from Erua Swamp shows that prior to the Taupo eruption of c. 1718 B.P., the site bore a dryland vegetation type on river flats. Patchy Nothofagus/Phyllocladus forest on the flats was destroyed by the eruption and replaced by Gleichenia-restionad swamp vegetation with abundant Halocarpus. Regional forest during the period from after the eruption to c. 650-560 B.P. was mixed podocarp, dominated by Dacrydium cupressinum and Prumnopitys taxifolia. A period of widespread and sustained anthropogenic destruction by fire of forest commenced c. 650-560 B.P.

Keywords  palynology; late Holocene; volcanism; Taupo Tephra eruption; disturbance; Tongariro

PDF file of entire paper: medium quality (605K); (scanned from paper original: notes about this process)

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