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Type: Journal article
Title: Developing age-size relationships for long lived tree species
Author: Boland, J.
Sinclair, R.
Citation: Journal of Biological Systems, 2014; 22(2):309-326
Publisher: World Scientific
Issue Date: 2014
ISSN: 0218-3390
Statement of
John Boland and Russell Sinclair
Abstract: Calculating the age of trees is often desirable in vegetation studies, but is sometimes difficult. In arid areas in particular, tree rings may not be annual, and growth may be related more to rainfall than annual cycles. A relationship between age and trunk circumference was developed for two species, Acacia aneura and Myoporum platycarpum, based on measurements of trees of known age (<80 years) growing on permanent quadrats on the Koonamore Reserve, in semi-arid South Australia. Extrapolation beyond the known ages was made by finding the maximum girth of mature trees in a larger population and using this to estimate an asymptote to which the curve is constrained to approach. We envisage that the techniques developed here could be applied to other species of a similar nature, those for which there is no relationship between number of tree rings and age.
Keywords: Tree age
mathematical model
arid lands
allometric growth
Rights: Copyright status unknown
DOI: 10.1142/S0218339014400087
Appears in Collections:Aurora harvest 7
Ecology, Evolution and Landscape Science publications

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