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Intra-annual variability of wood formation and delta C-13 in tree-rings at Hyytiala, Finland

Soudant, Alex; Loader, Neil J.; Bäck, Janna; Levula, Janne and Kljun, Natascha LU (2016) In Agricultural and Forest Meteorology 224. p.17-29
Abstract
Investigation of the relationship between tree-ring stable carbon isotope composition (δ13C) and environmental variables at the intra-seasonal scale can inform on the understanding of the environmental forcing affecting trees during the active period of radial growth. Recent progress in the measurement techniques for assessing the δ13C signature of tree rings at high spatial resolution provides an opportunity to derive tree physiological information at fine temporal scale, within a given year. Three δ13C time series of resin-extracted wholewood from tree-rings of Scots pine trees (Pinus sylvestris L.) sampled at Hyytiälä (Finland) have been produced by using laser-ablation stable isotope mass spectrometry. These intra-seasonal stable... (More)
Investigation of the relationship between tree-ring stable carbon isotope composition (δ13C) and environmental variables at the intra-seasonal scale can inform on the understanding of the environmental forcing affecting trees during the active period of radial growth. Recent progress in the measurement techniques for assessing the δ13C signature of tree rings at high spatial resolution provides an opportunity to derive tree physiological information at fine temporal scale, within a given year. Three δ13C time series of resin-extracted wholewood from tree-rings of Scots pine trees (Pinus sylvestris L.) sampled at Hyytiälä (Finland) have been produced by using laser-ablation stable isotope mass spectrometry. These intra-seasonal stable isotope series exhibit a strong common signal (EPS = 0.96) demonstrating the capacity of trees within a stand to preserve a common intra-seasonal response to external controls in a similar manner as found with annual measurements. To estimate when wood cells are active and responsive to environmental information, a Gompertz approach, assessed against microcore data, was adopted to model the timing of wood formation. The addition of a cell lifetime function into environment-growth models may evaluate more completely, the environmental effect on intra-annual tree-ring δ13C values and that during the growing season. Statistical analysis of the resulting tree-ring δ13C intra-annual signal implies a shift in importance from the influence of the environmental variables through out the growing season. (Less)
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author
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Scots pine, Tree-ring, Stable isotope, Dendrochronology
in
Agricultural and Forest Meteorology
volume
224
pages
12 pages
publisher
Elsevier
external identifiers
  • scopus:84964998636
ISSN
1873-2240
DOI
10.1016/j.agrformet.2016.04.015
language
English
LU publication?
no
id
02090dd2-17ac-4e55-bb68-41262d07ef46
date added to LUP
2018-06-12 12:54:06
date last changed
2018-09-16 04:55:48
@article{02090dd2-17ac-4e55-bb68-41262d07ef46,
  abstract     = {Investigation of the relationship between tree-ring stable carbon isotope composition (δ13C) and environmental variables at the intra-seasonal scale can inform on the understanding of the environmental forcing affecting trees during the active period of radial growth. Recent progress in the measurement techniques for assessing the δ13C signature of tree rings at high spatial resolution provides an opportunity to derive tree physiological information at fine temporal scale, within a given year. Three δ13C time series of resin-extracted wholewood from tree-rings of Scots pine trees (Pinus sylvestris L.) sampled at Hyytiälä (Finland) have been produced by using laser-ablation stable isotope mass spectrometry. These intra-seasonal stable isotope series exhibit a strong common signal (EPS = 0.96) demonstrating the capacity of trees within a stand to preserve a common intra-seasonal response to external controls in a similar manner as found with annual measurements. To estimate when wood cells are active and responsive to environmental information, a Gompertz approach, assessed against microcore data, was adopted to model the timing of wood formation. The addition of a cell lifetime function into environment-growth models may evaluate more completely, the environmental effect on intra-annual tree-ring δ13C values and that during the growing season. Statistical analysis of the resulting tree-ring δ13C intra-annual signal implies a shift in importance from the influence of the environmental variables through out the growing season.},
  author       = { Soudant, Alex and Loader, Neil J. and Bäck, Janna and Levula, Janne and Kljun, Natascha},
  issn         = {1873-2240},
  keyword      = {Scots pine,Tree-ring,Stable isotope,Dendrochronology},
  language     = {eng},
  month        = {08},
  pages        = {17--29},
  publisher    = {Elsevier},
  series       = {Agricultural and Forest Meteorology},
  title        = {Intra-annual variability of wood formation and delta C-13 in tree-rings at Hyytiala, Finland},
  url          = {http://dx.doi.org/10.1016/j.agrformet.2016.04.015},
  volume       = {224},
  year         = {2016},
}