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Arboriculture Glossary of TermsThere are 1070 entries in this glossary.
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notch cut used to help control the direction of fall of trees or branches being removed.
wedge-shaped cut forming the front of the hinge. Used to help control the direction of fall of trees or branches being removed. Scarf cut.
part of the rigging line from the rigging point to the anchor point. Contrast with lead.
equipment and techniques designed to ensure a climber will not fall from a tree or an aerial lift.
device installed in a tree to hold and direct ropes during climbing or rigging because there is not a suitable natural crotch available, or to protect an available crotch, and/or to reduce wear on ropes.
taxonomic group under the order level and above the genus level.
|feeder (distribution feeder)||
high-priority electric distribution supply line, generally 12,000 to 34,500 volts, that carries electricity from distribution substations to other primary distribution supply lines or distribution transformers.
(1) incomplete path of respiration in the absence of sufficient oxygen. (2) the conversion of sugars to alcohol and other metabolites by the action of microorganisms that may invade a tree
(1) elongated, tapering, thick-walled cell that provides strength to wood. (2) smallest component of a rope.
maximum soil moisture content following the drainage of water due to the force of gravity. Compare to available water, gravitational water, permanent wilting point, and saturation point.
metal device used to provide friction on a rope in climbing or very light rigging. See descender.
particular knot tied as a safety knot or stopper knot at the end of a line.
emergency care or treatment of the injuries or illnesses of a person to stabilize his or her condition before medical help is available.
rigging technique in which the load line is run through several rigging points below the load.
webbing or rope sling consisting of a complete, closed loop.
short sling with an eye spliced in one end. Also called dead-eye sling.
sling used in balancing limbs for removal that is not adjustable in length. See balancer.
(1) symptom in which leaves on a branch wilt and may ultimately turn brown without falling from the shoot. (2) growth form of trees growing in strong winds, characterized by the branches growing toward the downwind side. (3) colored tape used to mark trees or surveying points.
in utility arboriculture, mowing machines designed to cut vegetation with a moving blade, chain, or other cutting device.
tree climbing lanyard, with or without a wire core, usually with a snap or carabiner at one end and an eye at the other end. Used for ascending trees when using spikes, for work positioning, and as a second means of life support when using a chain saw in a tree.
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