A Photographic Guide to the Evaluation of Hazard Trees in Urban Areas

By Nelda Matheny and James R. Clark. This second edition is designed to assist managers in evaluating the hazard potential of trees. By providing a systematic rating approach, evaluations allow managers to identify hazard situations, rank their relative severity, and create a priority for work. Along with numerous illustrations, the book includes a 16-page section containing 43 full-color figures. The guide focuses on several important aspects: review of past and present site conditions; identification and assessment of structural defects in root, root crown, trunk, and crown; evaluation of likely and significant failure; assessment of the significance of the target; development of the hazard rating. The guide concentrates primarily on trees in urban areas. These environments are recognized as having unique combinations of tree species and site characteristics that place trees in proximity to a variety of targets, requiring a more systematic approach to evaluation and abatement.

Keywords: Identification; Hazard Trees; Arboriculture

Publisher: International Society of Arboriculture

Category: Plant Health