Modelling individual tree maximum basal area growth rates of five tall eucalypt species growing in even-aged forests

P. W. West

doi:10.24294/sf.v6i2.2738

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Modelling individual tree maximum basal area growth rates of five tall eucalypt species growing in even-aged forests

Journal article

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Modelling individual tree maximum basal area growth rates of five tall eucalypt species growing in even-aged forests

P. W. West

Sustainable Forestry, Vol.6(2), 2738

28/12/2023

DOI: https://doi.org/10.24294/sf.v6i2.2738

Appears in Recent Faculty of Science and Engineering Publications

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Abstract

growth model

maximum growth

basal area

tree height

growth efficiency

Inventory plot data were available providing over 87,000 individual tree basal area growth rates from even-aged native forests of three ash eucalypts (Eucalyptus regnans, E. obliqua, and E. delegatensis), from temperate regions, and two other species from more sub-tropical climes (E. grandis and E. pilularis). Models were developed relating maximum observed growth rates for these species in relation to tree size when, presumably, trees were under ideal environmental conditions and without competition from neighbours for site growth resources. These maximum growth rates increased with increasing tree size to a maximum of their own and then declined as tree size (hence age) increased further. The tree sizes, at which these maximum growth rates reached their maxima, were much greater for the ash eucalypts than for the other two species. It is hypothesised that the ash eucalypts may have evolved physiological characteristics that make them more efficient in compensating for the well-known physiological constraints imposed on growth rates as trees grow to great heights and ages.

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Title: Modelling individual tree maximum basal area growth rates of five tall eucalypt species growing in even-aged forests
Creators: P. W. West - Southern Cross University
Publication Details: Sustainable Forestry, Vol.6(2), 2738
Publisher: EnPress Publisher
Identifiers: 991013162687702368
Copyright: Copyright © 2023 by author(s). Sustainable Forestry is published by EnPress Publisher, LLC. This work is licensed under the Creative Commons Attribution (CC BY) license. (https://creativecommons.org/licenses/by/4.0/).
Academic Unit: Faculty of Science and Engineering
Language: English
Resource Type: Journal article

Modelling individual tree maximum basal area growth rates of five tall eucalypt species growing in even-aged forests

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