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
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
-
-
Classification
-
Meteorology, climatology
-
License
-
License undefined
-
Identifiers
-
-
Persistent URL
-
https://folia.unifr.ch/unifr/documents/300030
Statistics
Document views: 50
File downloads: