A 1700-year Athrotaxis selaginoides tree-ring width chronology from southeastern Australia
KJ Allen, P Fenwick, JG Palmer, SC Nichols, ER Cook, BM Buckley, PJ Baker
Dendrochronologia | Elsevier | Published : 2017
Few Southern Hemisphere tree-ring chronologies exceed 1000 years in length. We present a ca. 1700 years of indexed values for the long-lived conifer Athrotaxis selaginoides at Cradle Mt in southeastern Australia and compare it with the only other published millennial-plus length tree-ring chronology for Australia: the nearby Mt Read Lagarostrobos franklinii. We use simple correlation function and pointer year analyses to compare the climate responses of the two species (temperature, precipitation and growing degree days). Both chronologies show accelerated growth at their modern ends, but this growth acceleration is not synchronous, beginning approximately a quarter of a century earlier at t..View full abstract
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Awarded by Australian Research Council
Samples for this study were obtained under permits issued by the Tasmanian Parks and Wildlife Service. Samples collected are lodged at the Department of Ecosystems and Forest Science, University of Melbourne. We also wish to thank Ken Felton, Christopher and Neil Allen for assistance in the field and Cradle Mt Parks and Wildlife staff for their interest in, and assistance with, this project. Tree-ring data collected by LaMarche et al. was obtained from the ITRDB and is available at http://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/tree-ring. Greg Lee and Mandy Freund assisted with sourcing of climate data. We also thank the anonymous reviewers for useful suggestions that have improved this paper. Data for the two treering chronologies described in this paper will also be available from the ITRDB upon acceptance of this paper. This research was supported by Australian Research Council grants DP0878744 and DP120104320. This paper is Lamont-Doherty Earth Observatory contribution no. 8132.