Author
Phipps, Richard L.Affiliation
U.S. Geological SurveyIssue Date
2005
Metadata
Show full item recordCitation
Phipps, R.L. 2005. Research report: Some geometric constraints on ring-width trend. Tree-Ring Research 61(2):73-76.Publisher
Tree-Ring SocietyJournal
Tree-Ring ResearchAdditional Links
http://www.treeringsociety.orgAbstract
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.Type
ArticleLanguage
en_USISSN
2162-45851536-1098