An assessment of the relationship between tree-ring counts and basal girth of high-altitude populations of Eucalyptus pauciflora (Myrtaceae)
Libby Rumpff, Seraphina C Cutler, Ian Thomas, John W Morgan
AUSTRALIAN JOURNAL OF BOTANY | CSIRO PUBLISHING | Published : 2009
We investigated the relationship between the number of growth rings (a surrogate for approximate age of stems) and basal girth for Eucalyptus pauciflora (Maiden & Blakely) L.A.S.Johnson & Blaxell. Using basal-girth measurements and growth-ring counts obtained from trees felled on ski slopes at three Victorian alpine ski resorts, as well as seedlings destructively sampled from near the tree line on four summits, we modelled the relationship between growth rings and basal girth by using simple linear and non-linear regression methods. We compared our data to growth-ring-basal-girth data collected from low- and high-altitude E. pauciflora woodland stands in Kosciuszko National Park. The relatio..View full abstract
This project was part of a PhD research project which was funded through an Australian Postgraduate Award (LR) and the Holsworth Wildlife Research Fund. We thank Michael Rumpff for assistance with field sampling, and Resort Management from the Falls Creek, Mount Hotham and Mount Buller Resorts for access to field sites. We are also grateful to Matthew Brookhouse for a discussion of the utility of Eucalyptus in tree-ring research. We are also grateful to two anonymous referees for their helpful comments.