Separating the climatic signal from tree-ring width and maximum latewood density records

Alexander V. Kirdyanov, Eugene A. Vaganov, Malcolm K. Hughes

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

We propose a technique for separating the climatic signal which is contained in two tree-ring parameters widely used in dendroclimatology. The method is based on the removal of the relationship between tree-ring width (TRW) and maximum latewood density (MXD) observed for narrow tree rings from high latitudes. The new technique is tested on data from three larch stands located along the northern timberline in Eurasia. Correlations were calculated between the temperatures of pentads (five consecutive days), TRW chronologies and MXD chronologies calculated according to the standard and proposed methods. The analysis confirms the great importance of summer temperature for tree radial growth and tree-ring formation. TRW is positively correlated with the temperature of four to eight pentads (depending on the region) at the beginning of the growth season, but MXD as obtained by the standard technique is correlated with temperature over a much longer period. For maximum density series from which the relationship between MXD and TRW has been removed (MXD′), there is a clear correlation with temperatures in the second part of the growing season. These results are consistent with the known dynamics of tree-ring growth in high latitudes and mechanisms of tree-ring formation.

Original languageEnglish (US)
Pages (from-to)37-44
Number of pages8
JournalTrees - Structure and Function
Volume21
Issue number1
DOIs
StatePublished - Jan 2007

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latewood
growth rings
tree ring
Temperature
Chronology
temperature
chronology
Growth
dendroclimatology
Larix
methodology
treeline
Eurasia
growing season

Keywords

  • Climate signal
  • Dendroclimatology
  • Larch
  • Summer temperature
  • Tree-ring width/density relations

ASJC Scopus subject areas

  • Forestry
  • Plant Science

Cite this

Separating the climatic signal from tree-ring width and maximum latewood density records. / Kirdyanov, Alexander V.; Vaganov, Eugene A.; Hughes, Malcolm K.

In: Trees - Structure and Function, Vol. 21, No. 1, 01.2007, p. 37-44.

Research output: Contribution to journalArticle

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