The influence exerted on a habitat by the plant and animal organisms that inhabit an area. Biotic influence includes grazing, tramping, manuring, predation, parasitism, migration and territorial behavior patterns of animals.
In grading lumber, anything marring the appearance of wood.
Bulges on the surface of panel products due to local bond failures.
An area bounded by one-half (1/2) minute of latitude and one-half (1/2) minute of longitude, containing approximately eighty-one hectares (81 has).
A unit of measurement represented by a board 1 inch thick, 12 inches wide, and 12 inches long.
(12 inches = 1 foot)
A short section of tree trunk or limb; a short log of a length suitable for peeling in a lathe for veneer.
A unedged lumber produced from a log, which has been live-sawn without passing through the edger and stickered back into its approximate original form.
The distortion of a piece of lumber in which there is a deviation in a direction perpendicular to the flat face from straight line from end to end of the piece.
The defective core of a log, characterized by abnormal brittleness, which occurs in certain species of tropical hardwoods.
Forest with predominance (more than 75 percent of tree crown cover) of trees of broadleaved species.
An area characterized by discontinuous cover of shrubby and noon wood vegetation including grasses.