Richard L. Phipps
2005
<p><span>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 </span><i>BAI</i><span>(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<span> </span></span><i>BAI</i><span><span> </span>trend are examined. I conclude that curvilinear width trends, either increasing or decreasing, represent width adjustments to changes in growth rate (</span><i>BAI</i><span><span> </span>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.</span></p>
application/pdf
10.3959/1536-1098-61.2.73
en
Tree-Ring Society
Some geometric constraints on ring-width trend
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