Some geometric constraints on ring-width trend

Tree-Ring Research



Simulations of tree rings from trees of undisturbed forest sites are used to describe natural, long-term width trends. Ring-width trends of canopy-sized white oak are simulated from regressions of BAI(ring area) data of real trees. Examples are given of a tree from a typical re-growth forest in Illinois and of a more slowly growing tree from an old-growth forest in Kentucky. The long-term width trend was simulated as being toward constant ring width regardless of growth rate of the tree. Conditions by which either increasing or decreasing ring-width trends could be simulated from the same linear BAI trend are examined. I conclude that curvilinear width trends, either increasing or decreasing, represent width adjustments to changes in growth rate (BAI trend) after which the width trend stabilizes to a near-constant value. Interpretation of ring-width trends of trees from undisturbed stands may be useful in assessing stand disturbance history.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Some geometric constraints on ring-width trend
Series title Tree-Ring Research
DOI 10.3959/1536-1098-61.2.73
Volume 61
Issue 2
Year Published 2005
Language English
Publisher Tree-Ring Society
Description 4 p.
First page 73
Last page 76