- 行业: Forest products; Government
- Number of terms: 2933
- Number of blossaries: 0
- Company Profile:
Federal lands that have been designated by Executive Order or Statute as National Forests, or purchased units and other land under the administration of the USDA Forest Service.
Industry:Forest products
Renewal of the forest achieved either by natural seeding or from the vegetative reproduction of plants on the site.
Industry:Forest products
Increase in volume of trees during a specified year. Components of net annual growth include the increment of net volume of trees at the beginning of the specified year that survive to the year s end, plus the net volume of trees reaching the minimum size class during the year, minus the volume of trees that died during the year, and minus the net volume of trees that become rough or rotten trees during the year.
Industry:Forest products
Annual change in volume of sound wood in live sawtimber and poletimber trees, plus total volume of sound wood in live sawtimber and poletimber trees, plus total volume of trees entering these classes through growth, minus volume losses resulting from natural causes.
Industry:Forest products
Annual change in volume of live sawtimber trees plus total volume of trees reaching sawtimber size, minus volume losses resulting from natural causes.
Industry:Forest products
Actual amount of merchantable wood contained in a log as opposed to the gross scale, which includes defect.
Industry:Forest products
Unproductive forest land incapable of yielding crops of industrial wood because of adverse site conditions. Also, productive forest land withdrawn from commercial timber use through statute or administrative regulation, or exclusively used for Christmas tree production.
Industry:Forest products
Tree species in which small size, poor form, or inferior quality is typical. These species do not normally develop into trees suitable for conventional forest products.
Industry:Forest products
1. Land that has never supported forests. 2. Land formerly forested where forest use is precluded by development for nonforest uses, such as cropland, improved pasture, residential areas, and city parks.
Industry:Forest products
Part of scheduled operating time during which a machine is not doing productive work for reasons other than repair or service. This time may be subdivided by causes: weather or terrain conditions, waiting for another phase of an integrated operation, assisting other machines, and operator talking with visitors.
Industry:Forest products
