Journal
CHEMICAL GEOLOGY
Volume 252, Issue 1-2, Pages 52-55Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.chemgeo.2008.01.014
Keywords
tree rings; stable-carbon isotopes; pooling; conifers
Categories
Ask authors/readers for more resources
Pooling of growth rings from several trees before subsequent isotopic analysis of the mixture may offer the advantage of obtaining representative isotopic values fairly rapidly. In principle, however, unless equal masses are taken from the individuals to make the composite sample, the measured isotope value will be biased by the relative mass contribution of the trees, each of which likely has a different isotopic composition. Although biasing associated with direct pooling without regard to mass may happen, this study provides evidence (at least for stable-carbon isotope composition) from three sites in the U.S. Midwest and Southwest that the error (probably more appropriately called difference) is negligible with respect to error of preparation and analysis, and variability of isotopic composition within and among trees at a site. (C) 2008 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available