Intra-annual variability of anatomical structure and delta C-13 values within tree rings of spruce and pine inalpine, temperate and boreal Europe ...

• Main Authors: Vaganov, Eugene A., Schulze, Ernst-Detlef, Skomarkova, Marina V., Knohl, Alexander, Brand, Willi A., Roscher, Christiane
• Format: Article in Journal/Newspaper
• Language: English
• Published: ETH Zurich 2009
• Subjects: Dendrochonology; Carbohydrate storage; Picea abies; Pinus cembra; Pinus sylvestris; Tracheid lumen area; Wood density; North Sweden
• Online Access: https://dx.doi.org/10.3929/ethz-b-000157997; http://hdl.handle.net/20.500.11850/157997

Tree-ring width, wood density, anatomical structure and 13C/12C ratios expressed as δ13C-values of whole wood of Picea abies were investigated for trees growing in closed canopy forest stands. Samples were collected from the alpine Renon site in North Italy, the lowland Hainich site in Central Germany and the boreal Flakaliden site in North Sweden. In addition, Pinus cembra was studied at the alpine site and Pinus sylvestris at the boreal site. The density profiles of tree rings were measured using the DENDRO-2003 densitometer, δ13C was measured using high-resolution laser-ablation-combustion-gas chromatography-infra-red mass spectrometry and anatomical characteristics of tree rings (tracheid diameter, cell-wall thickness, cell-wall area and cell-lumen area) were measured using an image analyzer. Based on long-term statistics, climatic variables, such as temperature, precipitation, solar radiation and vapor pressure deficit, explained <20% of the variation in tree-ring width and wood density over ... : Oecologia, 161 (4) ...