New Zealand Journal of Botany abstracts

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A dendrometer band study of the seasonal pattern of radial increment in kauri (Agathis australis)

J. PALMER
J. OGDEN

Department of Botany, Auckland University
Private Bag, Auckland, New Zealand

Abstract Simple dendrometer bands were used to measure the radial increment of kauri (Agathis australis Salisb.) at 3 sites to the south and east of Auckland during the 1980-81 growing season. Diameter increment cores taken from some of the trees at the beginning and end of the study showed that the radial expansion measured by the bands correlated significantly (P<0.001) with the width of the annual ring formed over the same period. A reduction in tree growth rate during summer drought was recorded at 2 mid-altitude sites, but not near the altitudinal limit of kauri. These growth patterns were attributed to the different soil moisture conditions at the different sites.

Keywords dendrometer; kauri; Agathis australis; wood anatomy; ecology; New Zealand vegetation

Received 15 October 1982; revision 17 January 1983
New Zealand Journal of Botany, 1983, Vol. 21 : 121-126
0028-825X/83/2102-0121$2.50/0 © Crown copyright 1983

PDF file of entire paper: medium quality (327K); (scanned from paper original: notes about this process)

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