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作者

来源

URBAN FORESTRY & URBAN GREENING,Vol.24,P.71-79

语言

英文

关键字

Levels of risk assessment; Micro-drilling; PiCUS (R); Resistance drilling; Resistograph (R); Risk perception; Sonic tomography; Tree defects; DECAY DETECTION; TRUNK DECAY; WOOD DECAY; TREES; RESISTOGRAPH; FREQUENCY; SEVERITY; DRILL

作者单位

[Koeser, Andrew K.] Univ Florida, Gulf Coast Res & Educ Ctr, Dept Environm Hort, CLCE,IFAS, 14625 Cty Rd 672, Wimauma, FL 33598 USA. [Hauer, Richard J.] Univ Wisconsin, Coll Nat Resources, 800 Reserve St, Stevens Point, WI 54481 USA. [Klein, Ryan W.] Univ Florida, Dept Environm Hort, IFAS, CLCE, 100A Mehrhof Hall, Gainesville, FL 32611 USA. [Miesbauer, Jason W.] Morton Arboretum, 4100 Illinois Route 53, Lisle, IL 60532 USA. Koeser, AK (reprint author), Univ Florida, Gulf Coast Res & Educ Ctr, Dept Environm Hort, CLCE,IFAS, 14625 Cty Rd 672, Wimauma, FL 33598 USA. E-Mail: akoeser@ufl.edu

摘要

Tree risk assessments can be categorized by their time, training, and equipment requirements. In arboriculture and urban forestry, practitioners must select a risk assessment method that is appropriate for the tree or trees to be assessed, available resources, and management objectives. While more detailed advanced risk assessment levels are believed to provide more accurate information regarding likelihood of failure (a component of tree risk), it is not clear how this additional information influences risk ratings. For this experiment we compared likelihood of failure ratings for trees assessed by 70 arborists using Level 1 (limited visual), Level 2 (basic), and Level 3 (advanced) risk assessment methods. Mean ratings did differ by level of assessment (P < 0.001). Mean likelihood of failure ratings for limited visual assessments were lower than the basic and advanced assessment techniques used. However, the differences between the basic and advanced assessment methods tested were less pronounced. Additionally, no level of assessment consistently reduced variability in ratings among arborists.