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forestry voc. c -d


caliper, tree An instrument used to measure diameters of trees or logs. The tree caliper is a graduated rule with two arms, one fixed at right angles to one end of the rule, and the other sliding parallel to the fixed arm.
cambium In woody plants, the layer of living tissue between the bark and wood from which new bark and wood are formed.
camouflage Colors, tones, patterns, shapes or behaviors that enable an organism to blend in with its surroundings. Some organisms, for example, have a skin or coat color that lets them hide from predators
canopy The forest layer formed by the leaves and branches of trees or shrubs. There may be several canopy layers.
canopy cover The cover formed by the branches, leaves, and stems of plants. Can specify as herbaceous, shrub, tree, or all canopy cover.
chlorophyll The green coloring matter in plants necessary for photosynthesis.
chloroplasts The structures within plants that contain chlorophyll and enable photosynthesis to occur
commercial forest land A forest land that is either currently or prospectively
clearcut accessible capable of bearing merchantable timber, not withdrawn from such use.
compound leaf A leaf that is subdivided into many leaflets. A leaf that is comprised of a single leaf blade is a simple leaf.
cord A volume measure of stacked wood. A standard cord is 4 x 4 x 8 feet, or 128 cubic feet of wood and space. A long cord contains 160 cubic feet and is 4 x 5 x 8 feet.
conifer A plant that bears naked seeds in cones; usually refers to needleleaf trees, although some needleleaf, such as yew, do not bear cones.
coniferous Refers to cone-bearing. A coniferous forest is one composed of pines, firs, or spruces.
crop tree Any tree selected to grow to final harvest or to a selected size. Crop trees are selected for quality, species, size, timber potential, or wildlife value.
cutting cycle The planned time interval between major harvesting operations within the same stand—usually within uneven-aged stands. For example, on a 10-year cutting cycle in a hardwood stand, trees are harvested every 10 years.
crown The top branches of a tree
crown-class A tree classification system based on the tree’s relative height, foliage density, and ability to intercept light.
crown-sprout The ability of some plants to regrow after plant material above ground is removed by fire or other disturbances.
cruise Measuring timber to determine the volume of a stand. Cruising shows landowners how much timber they are growing and is basic in determining how much timber should be marked for cutting and how much should be allowed to grow.
cull A tree or log of marketable size that is useless for all but firewood or pulpwood because of crookedness,rot, injuries, or damage from disease or insects.
cunit A stack of logs containing 100 cubic feet
cutting The name given to the a type of harvesting system— clear cutting, seed tree, selection, and shelter wood.
DDT A colorless contact insecticide. Banned in the United States for most uses since 1972
DBH Diameter at breast height; a term used by foresters when measuring trees
deciduous Plants that annually shed their leaves; usually hardwood trees and shrubs
defoliation The removal of leaves or needles from trees or plants, usually caused by insects, diseases, or chemicals and often causing mild to severe damage—even death—to the tree.
deforestation The permanent replacement of forests by non-forest uses.
dendrology A branch of botany devoted to the study of trees.
dendrochronology The science of dating events and variations in the environment in former periods by the comparative study of growth rings in trees and aged wood.
dendrometers An instrument used to measure trees
densimeter A device used for measuring the density of the canopy cover.
Created by: aaronbrown1