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Arboriculture Glossary of Terms
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| Term | Definition |
|---|---|
| chlorosis |
whitish or yellowish leaf discoloration caused by lack of chlorophyll. Often caused by nutrient deficiency.
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| chogging |
cutting and removing trunk sections in manageable lengths, which are lifted manually and thrown clear.
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| chronic |
disorder or disease occurring over a long period of time. Contrast with acute.
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| circuit, electric utility |
an electrical network with a closed loop, allowing a return path for the electrical current. Electric utility circuits may include feeders and some primaries.
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| class |
taxonomic group below the division level but above the order level.
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| clay |
(1) soil particles with a typical grain size less than 0.004 millimeter. (2) a soil predominantly composed of such particles. Contrast with sand and silt.
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| cleaning |
see crown cleaning.
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| clearance |
amount of open space between a tree or tree part and another object or the ground. Often used in reference to the distance between trees and utility lines.
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| clevis |
see shackle.
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| climbing hitch |
hitch used to secure a tree climber to the climbing line, which permits controlled ascent, descent, and work positioning.
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| climbing line |
rope that meets specifications for use in tree climbing.
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| climbing saddle |
work-positioning harness designed for climbing trees.
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| climbing spurs |
sharp devices strapped to a climber
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| clones |
asexually produced organisms that are genetically identical.
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| clove hitch |
knot used to secure a rope to an object.
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| CODIT |
acronym for Compartmentalization Of Decay In Trees. See compartmentalization.
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| codominant branches/codominant stems |
forked branches nearly the same size in diameter, arising from a common junction and lacking a normal branch union.
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| collar cut |
see removal cut.
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| colloid |
negatively charged soil particles of clay and humus that attract cations. Storage site for plant nutrients.
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| come-along |
portable winching device, using cable or rope to draw two objects closer together. Simple arrangement of rope knots and loops to create mechanical advantage.
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