Open AccessValidation of a Tree Failure Evaluation System
Author(s) -
G.L. Hickman,
Ed Perry,
Richard J. Evans
Publication year - 1995
Publication title -
arboriculture and urban forestry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.222
H-Index - 47
eISSN - 2155-0778
pISSN - 1935-5297
DOI - 10.48044/jauf.1995.037
Subject(s) - tree (set theory) , lobata , statistics , trunk , forestry , mathematics , biology , ecology , pueraria , geography , medicine , mathematical analysis , alternative medicine , pathology
In 1987, 695 oak trees, Quercus lobata and O. wizlizeniiwere evaluated using a nine-component rating system. In 1994, the trees were reevaluated to validate the original system in predicting tree failure. Analysis of the results showed that 3 components [decline (vigor), trunk condition and lean] correctly predicted subsequent tree failure or survival. Decline, a relative measure of leaf cover and color, was the most important factor in predicting total tree failure.