- Industry: Forest products; Government
- Number of terms: 2933
- Number of blossaries: 0
- Company Profile:
One of the intervals, commonly 10 or 20 years, into which the age range of tree crops is divided for classification or use. Also pertains to the trees included in such an interval. For example, trees ranging in age from 21 to 40 years fall into a 30-year age class; 30 designates the midpoint of the 20-year interval from 21 to 40 years.
Industry:Forest products
Mean age of the trees comprising a forest, crop, or stand. In forests, the mean age of dominant (and sometimes codominant) trees is taken. The plantation age is generally taken from the year the plantation was begun, without adding the age of the nursery stock. The time elapsed since the germination of the seed, or the budding of the sprout or cutting from which the tree developed.
Industry:Forest products
1. Two wood or metal uprights mounted in the shape of the letter "A" to support lead blocks at the upper end. 2. Two poles lashed together with a crosspiece in the form of an "A" with a block hung in the apex of the poles used as a loading device with the poles or sawed timbers joined at the top, anchored at the base, and guyed with cable.
Industry:Forest products
In highway transport, uphill haul that requires trucks to use lower gears.
Industry:Forest products
Yarding system employing aerial lift of logs, such as balloons or helicopters.
Industry:Forest products
Establishment of forest crops by artificial methods, such as planting or sowing on land where trees have never grown.
Industry:Forest products
Heavy shackle at the tail tree that connects the skyline to the stub line.
Industry:Forest products
Time spent using the machine to carry out the actual task.
Industry:Forest products
Time during which actual repair work is carried out on the machine itself or a dismantled part of the machine.
Industry:Forest products
