Assessing Extent and Severity of Mechanical Injuries in Trees

Assessing new mechanical injuries present in a tree using visual, non-invasive observations is difficult and prone to wild variability, inaccuracy, and assessor subjectivity. Assessment of relative damage levels is valuable when precision allows for comparisons across one site and over many sites. Judging recent mechanical injuries from visual criteria, although imperfect, can help gauge the relative amount of damaged tissue visible and estimate the total amount of damaged tissue present.

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