Palaeoclimate potential of New Zealand Manoao colensoi (silver pine) tree rings using Blue-Intensity (BI)

Blake, SAP; Palmer, JG; Björklund, J; Harper, JB; Turney, CSM

Palaeoclimate potential of New Zealand Manoao colensoi (silver pine) tree rings using Blue-Intensity (BI)

Blake, SAP Palmer, JG Björklund, J Harper, JB Turney, CSM

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Publisher:: Elsevier BV
Publication Type:: Journal Article
Citation:: Dendrochronologia, 2020, 60, pp. 125664
Issue Date:: 2020-04-01

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Field	Value	Language
dc.contributor.author	Blake, SAP
dc.contributor.author	Palmer, JG
dc.contributor.author	Björklund, J
dc.contributor.author	Harper, JB
dc.contributor.author	Turney, CSM
dc.date.accessioned	2022-01-11T00:57:31Z
dc.date.available	2022-01-11T00:57:31Z
dc.date.issued	2020-04-01
dc.identifier.citation	Dendrochronologia, 2020, 60, pp. 125664
dc.identifier.issn	1125-7865
dc.identifier.issn	1612-0051
dc.identifier.uri	http://hdl.handle.net/10453/152895
dc.description.abstract	This study investigates if Blue Intensity (BI) parameters are capable of capturing enhanced climatic signals from a key New Zealand dendrochronological species when compared to ring-width (RW) measurements. Three BI parameters (earlywood mean, latewood mean and maximum latewood) recorded generally superior correlations to temperature than conventional RW measurements and these correlations appeared more stable over time. For all BI parameters, austral summer (Dec-Feb) was identified as the strongest reconstructive window. However, all the BI parameters required greater sample replication than RW to reach widely accepted thresholds of chronology reliability, highlighting the need for further examination into the physiological controls on the BI signal. Despite the need for further research, this pilot study is strongly encouraging for the wider application of BI in Southern Hemisphere dendrochronology.
dc.language	en
dc.publisher	Elsevier BV
dc.relation	http://purl.org/au-research/grants/arc/DP170104665
dc.relation	http://purl.org/au-research/grants/arc/FL100100195
dc.relation.ispartof	Dendrochronologia
dc.relation.isbasedon	10.1016/j.dendro.2020.125664
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0607 Plant Biology
dc.subject.classification	Forestry
dc.title	Palaeoclimate potential of New Zealand Manoao colensoi (silver pine) tree rings using Blue-Intensity (BI)
dc.type	Journal Article
utslib.citation.volume	60
utslib.for	0607 Plant Biology
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/DVC (Research)
utslib.copyright.status	closed_access	*
dc.date.updated	2022-01-11T00:57:28Z
pubs.publication-status	Published
pubs.volume	60

Abstract:

This study investigates if Blue Intensity (BI) parameters are capable of capturing enhanced climatic signals from a key New Zealand dendrochronological species when compared to ring-width (RW) measurements. Three BI parameters (earlywood mean, latewood mean and maximum latewood) recorded generally superior correlations to temperature than conventional RW measurements and these correlations appeared more stable over time. For all BI parameters, austral summer (Dec-Feb) was identified as the strongest reconstructive window. However, all the BI parameters required greater sample replication than RW to reach widely accepted thresholds of chronology reliability, highlighting the need for further examination into the physiological controls on the BI signal. Despite the need for further research, this pilot study is strongly encouraging for the wider application of BI in Southern Hemisphere dendrochronology.

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http://hdl.handle.net/10453/152895