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| Denim Pine | | Slang or Marketing term for pine lumber with Blue Stain ... |
| Depletion allowance | | Deduction from taxable income derived from ? wasting asset. The ... |
| Diameter at breast-height | | Diameter measure of a tree at 4.5 feet above the ... |
| Diameter at ground line | | Diameter measure of a standing tree at the estimated cutting ... |
| Diameter classes | | Classification of trees based on diameter outside bark measured at ... |
| Diameter inside bark | | Diameter measurement of a standing tree or log in which ... |
| Diameter limit | | Maximum diameter of trees to be cut, as in a ... |
| Diameter outside bark | | Measurement of tree diameter in which the bark is included. ... |
| Diameter tape | | Tape measure specially graduated so that diameter may be read ... |
| Dibble | | Spade-like tool used to prepare planting holes for seedlings. Dibbles ... |
| Direct cost | | Cost that varies in direct proportion to production and is ... |
| Direct seeding | | 1.) Spreading seed s over the forest seedbed by hand ... |
| Directional felling | | Predetermining the way a tree will land when it hits ... |
| Dirt wiper | | Mechanism on a hydraulic cylinder that cleans the cylinder shaft ... |
| Discounted cash flow | | In evaluating investment opportunities, the various costs and benefits anticipated ... |
| Dismembered | | A Banned member. Also means "to be uninvited."
Also, to ... |
| Diverter valve | | Hydraulic valve that permits a change in the direction of ... |
| Dog | | 1.) Short, heavy piece of steel, bent and pointed at ... |
| Dog iron | | Piece of iron rod turned at each end in a ... |
| Dominant trees | | 1.) The most numerous and vigorous species in a mixed ... |
| Donkey | | 1.) Also known as a yarder.
2.) In cable yarding, A ... |
| Dote | | General term used to denote decay or rot in timber. ... |
| Double-action shear | | Mechanized cutting tool for felling trees; works like a pair ... |
| Double-drum winch | | Winch consisting of two drums controlled separately-one for the dragline ... |
| Doyle rule | | Log rule used in the Eastern and Southern United States. ... |
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