Dendroclimatological potential of the Australian red cedar
- Heinrich, Ingo School of Resources, Environment & Society, Australian National University, Canberra, Australia - Department of Geosciences, Geography, University of Fribourg, Switzerland
- Banks, John Charles Gripper School of Resources, Environment & Society, Australian National University, Canberra, Australia
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18.02.2005
Published in:
- Australian Journal of Botany. - 2005, vol. 53, no. 1, p. 21-32
English
We examined Toona ciliata M.Roemer (Australian red cedar) for its potential to deliver annually resolved tree-ring proxy data. Such proxies are valuable and sought-after sources for reconstructing climate beyond instrumental records, especially in Australia. T. ciliata was chosen because it is one of the few deciduous tree species in Australia experiencing a seasonally dormant period of the cambium. This was confirmed by a preliminary tree-ring analysis which revealed distinct growth rings. Because of initial uncertainties regarding reliable annual growth rings in the wood of T. ciliata, a dendrometer-band study was conducted in addition to the tree-ring analysis. Stem increments revealed a common period of dormancy during winter and the measurements were found to correlate with both precipitation and temperature, depending on the site. For the first time, our tree-ring analysis demonstrated that samples from different individuals can be cross-dated and the resulting site index from Upper Kangaroo Valley (New South Wales) has the potential to reconstruct early season temperatures and late-season rainfall.
- Faculty
- Faculté des sciences et de médecine
- Department
- Département de Géosciences
- Language
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- English
- Classification
- Meteorology, climatology
- License
- License undefined
- Identifiers
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- RERO DOC 5121
- DOI 10.1071/BT04033
- Persistent URL
- https://folia.unifr.ch/unifr/documents/300030
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