Abstract
Tracking timber is necessary in order to prevent illegal logging and protect local timber production, but there is as yet no suitable analytical traceability method. Stable isotope ratios in plants are known to reflect geographical variations. In this study we analysed four stable isotope ratios in order to develop a model able to identify the geographic origin of Norway spruce in the European Alps. δ18O, δ2H, δ13C and δ15N were measured in bulk needles of Picea abies sampled in 20 sites in and around the European Alps. Environmental and spatial variables were found to be related to the measured isotope ratios. An ordinary least squares regression was used to identify the most important factor in stable isotope variability in bulk needles. Spatial autocorrelation was tested for all isotope ratios by means of Moran's I. δ18O, δ2H and δ15N values differed significantly between sites. Distance from the coast had the greatest influence on δ2H, while latitude and longitude were strongly related to δ18O. δ13C values did not appear to have any relationship with geographical position, while δ15N values were influenced by distance from the motorway. The regression model improved the explanatory power of the spatial and environmental var...Continue Reading
References
Apr 1, 1995·The British Journal of Radiology·N J Dudley
Dec 1, 2000·Nature·J R EhleringerV L Ford
Apr 21, 2001·Journal of Agricultural and Food Chemistry·G MancaG Versini
May 25, 2002·Proceedings. Biological Sciences·Marie-France DeguillouxRémy J Petit
Oct 3, 2003·Isotopes in Environmental and Health Studies·L I Wassenaar, K A Hobson
Nov 25, 2003·Analytical and Bioanalytical Chemistry·M Boner, H Förstel
May 12, 2007·Analytical and Bioanalytical Chemistry·F CaminA Rossmann
Aug 30, 2007·The New Phytologist·Frank KepplerJohn T G Hamilton
Mar 4, 2009·Rapid Communications in Mass Spectrometry : RCM·L BontempoA Rossmann
Jun 9, 2009·Rapid Communications in Mass Spectrometry : RCM·W LaumerH Wissel
Oct 27, 2009·The Science of the Total Environment·Giovanna BattipagliaM Francesca Cotrufo
Nov 10, 2009·Rapid Communications in Mass Spectrometry : RCM·Micha HoracekHannes Krehan
Apr 29, 2011·PloS One·David RoizAnnapaola Rizzoli
Dec 15, 2012·Rapid Communications in Mass Spectrometry : RCM·Y GoriF Camin
Feb 1, 1999·Oecologia·M AmmannC Brunold
May 1, 2002·Oecologia·M JäggiR Siegwolf