How Do Advanced Decay Detecting Devices Affect Likelihood of Failure Ratings... TREE Fund Webinar
Автор: TREE Fund
Загружено: 2023-08-17
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Dr. Brian Kane presents "How Do Advanced Decay Detecting Devices Affect Likelihood of Failure Ratings for Trunks with Decay" for TREE Fund Webinar Series on Austust 8, 2023.
*please note, the term "Resistograph" was used, incorrectly and unintentionally, as a general term for resistance recording drills. We apologize for this misrepresentation.
As part of tree risk assessments, arborists commonly investigate stem decay to assess the likelihood of failure. Studies have shown that: (i) arborists can sometimes judge the extent of internal decay based on external signs; (ii) tools like tomography and resistance drilling can reliably illustrate the extent of internal decay; and (iii) assessing tree risk can be subjective. We conducted a study to see whether experienced and credentialed tree risk assessors changed their likelihood of failure ratings when using simple and advanced decay detection tools. We found that assessors didn’t always assign the same likelihood of failure ratings, even with the benefit of viewing tomograms of decayed stems.
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