Glossary: W

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Term Definition French
Wane The presence of bark or the absence of wood along the edges of a piece of lumber resulting from the curved outer surface of the log as it is broken down into straight-edged lumber. Flache
Warp When the edge or surface of lumber no longer remains straight because of uneven shrinkage along the length of a piece of lumber. Gauchissement
Water bombing The act of dropping suppressants (water or short-term retardant) on a wildfire from an aircraft in flight. Arrosage aérien
Watershed The area drained by an underground or surface stream, or by a system of streams. Bassin hydrographique
Web A connecting and strengthening component used to join other structural elements in products such as I-beams. Âme
Webworm Organism that spins a silk shelter in which to hide or feed. Tisseuse
Wedge system A modification of the strip shelterwood system in which cuttings begin as narrow, interior, wedge-shaped strips with the apex into the prevailing wind, and are then successively enlarged and advanced; regeneration is mainly natural. Mode de régénération par coupes progressives en coin
Weed tree Any tree of a species having little or no economic value on the site in question. Indésirable
Weeding A release treatment in stands during the seedling stage that eliminates or suppresses undesirable vegetation regardless of crown position. Désherbage
Whip 1. A bare-root hardwood planting stock. 2. Any slender tree that the wind causes to lacerate the crowns of its neighbors. Fouet
Wildland Uncultivated land other than fallow. Land currently little influenced by human activity. Friche
Wildland-urban interface The wildland-urban interface broadly refers to the area where forests meet houses and infrastructure that is part of communities. Surface limite entre les terres non défrichées et les zones urbaines
Wildling syn.: wilding, wild seedling A naturally grown, in contrast to a nursery-raised, seedling, sometimes used in forest planting when nursery stock is scarce. Semis naturel
Wilt Drying out, loss of colour and shape of leaves, then twigs and branches, caused by a lack of water or the presence of toxins. Flétrissement
Wind bend Condition of trees having a curved stem as a consequence of wind action or compression due to heavy load on the crown of the tree. cf. windfirm Courbé par le vent
Wind lean Condition of trees having a leaning stem, result of partial uprooting or wind action. cf. windfirm Couché par le vent
Wind rock Movement of tree stems in the wind, which may lead to chafing of the collar and sometimes of the roots, and, in very wet soil, loosening of the ground. Balancement au vent
Windbreak A small-scale shelterbelt or other barrier, natural or artificial, maintained against the wind. Brise-vent
Windfall 1. A tree or trees thrown down or with their stems broken off or other parts blown down by the wind. 2. Any area on which the trees have been thrown down or broken by the wind. Chablis
Windfirm Of trees, able to withstand strong winds, i.e., to resist windthrow, windrocking, and major breakage. Such trees may not remain upright but show wind lean or wind bend or both. Stable au vent
Windrow Slash, brushwood, etc., concentrated along a line so as to clear the intervening ground between two of them. Andain
Windrow planting Planting between the two lanes created in windrowing. Plantation sur entrandain
Windthrow Uprooting by the wind. 2. Tree or trees so uprooted. Déracinement par le vent
Witches' broom Excessive proliferation of twigs from one location on a branch or several locations close together. The twigs in a broom are erect and compacted. Balai de sorcière
Wolf tree A tree, generally overtopping and of poor form, that occupies more growing space than its commercial value warrants. Arbre loup
Wood A plant tissue composed essentially of lignified fibers of cellulose and hemicellulose. Wood is present in the stems of trees and shrubs where it ensures support and conducts water. (See also cellulose and lignin.) Bois
Wood composites Products made from wood waste or residues created in the manufacturing of other wood products. Composites de bois
Wood connection technologies Fastenings (nails, screws, bolts, pressure-applied plates, etc.) that join wood to wood, metal, concrete, plastic or any other solid material. Technologies de fixation du bois
Wood pellets A fuel made from wood shavings, bark, sawdust and chips compressed or bound together. Low moisture content and easily transported over long distances. Granules de bois
Wood-cement composites Produced by mixing small pieces of wood with cement under pressure. Non-structural uses include acoustic ceiling tiles, siding and roadside noise barriers; structural uses include concrete-filled insulating forms. Composites bois-ciment
Wood-plastic composite A mixture or mechanical combination of wood and plastic resins that are solid in a finished state, are mutually insoluble and differ in chemical nature. Composite bois plastique
Woody debris Dead and decomposing wood of various sizes. Débris ligneux
Woody tissue Plant tissue containing lignin, the main component of wood. Ligneux
Working group An aggregate of forest stands, or forest stand and forest sites, which are grouped for the purpose of applying a common set of silvicultural treatments (also called operational group). Section d’aménagement
Worm-like Resembling a worm. Vermiforme
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