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Arboriculture Glossary of TermsThere are 1070 entries in this glossary.
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see radial trenching.
see frost crack.
lateral movement of substances, perpendicular to the longitudinal axis of the tree or stem.
technique for aerating the soil around a tree by removing and replacing soil (which may be amended) in trenches made in a spokelike pattern (radially from the trunk) in the root zone to improve conditions for root growth. Contrast with horizontal boring, trenching, and tunneling.
selective pruning to provide vertical clearance. See crown raising.
bollard-type lowering device equipped with a mechanism for lifting loads.
parenchyma tissues that extend radially across the xylem and phloem of a tree and function in transport, storage, structural strength, and defense.
force of equal magnitude exerted in the opposite direction of a force acting on a body.
wood formed in leaning or crooked stems or on lower or upper sides of branches as a means of counteracting the effects of gravity. See compression wood and tension wood.
natural boundary formed chemically within a tree to separate damaged wood from existing healthy wood. Important in the process of compartmentalization. Contrast with barrier zone.
force generated in response and opposite to another force. Often demonstrated when operating a chain saw.
(1) (verb) changing the path of a climbing or rigging line to modify the forces on, or the direction of, the line. (2) (noun) a system installed to change the path of a climbing or rigging line.
pruning to decrease height and/or spread of a branch or crown. See drop-crotch pruning.
pruning cut that reduces the length of a branch or stem back to a lateral branch large enough to assume apical dominance.
an asexual reproductive strategy of trees such as aspen (Populus spp.) and willow (Salix spp.), which produce new trees or groups of trees by root suckering. See sucker.
|reliability-centered management (RCM)||
scheduling of preventive maintenance (including utility arboriculture and Integrated Vegetation Management) to maximize electric service reliability and cost efficiency.
cut that removes a branch at its point of origin. Collar cut.
|replacement cost method (RCM)||
method to appraise the monetary value of trees considered replaceable with nursery or field-grown stock. Based on the cost of replacement with the same or a comparable species of the same size and in the same place, subject to depreciation for various factors. Contrast with trunk formula method.
climbing gear and emergency equipment that should be set out on every job site and available to conduct an aerial rescue and apply first aid.
light-duty pulley used in light rigging operations.
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