NBFRAC - WILDLIFE TECHNICAL COMMITTEE
DWAMU HARVEST AND SILVICULTURE GUIDE WORKING GROUPGLOSSARY OF TERMS
(* = recent additions)
AREA REGULATION: (
CANOPY CLOSURE: (called crown cover by the SAF): The ground area covered by the crowns of trees or woody vegetation, as delimited by the vertical projection of crown perimeters and commonly expressed as a percentage of total ground area. (syn. Canopy cover)
Dominant: Trees with crowns extending above the general level of the main canopy of even-aged groups of trees, and receiving full light from above and partly from the sides.
Codominant: Trees with crowns forming the general level of the main canopy in even-aged groups of trees, receiving full light from above, and comparitively little from the sides.
Intermediate: Trees with crowns extending into the lower portions of the main canopy of even-aged groups of trees, but shorter in height than the codominants. They receive little direct light from above and none from the sides.
Overtopped (Suppressed): Trees of varing levels of vigor that have their crowns completely covered by the crowns of one or more neighboring trees.
CUT PECKING ORDER: This term refers to the priorization of types of trees to be removed in a cutting operation; the pecking order. For example, from Fraser's Maine Timberlands, in softwood stands (>= 70% S):
2. oversize low-grade hardwood
3. oversized fir (10" dbh)
4. oversized hemlock (14" dbh)
5. oversized spruce (14" dbh)
6. oversized pine (18" dbh)
9. oversized quality hardwood (18" dbh)
10. undersized quality hardwood
- cable skidder, full tree to road side
- cable skidder, tree length to road side
- porter, manual processing, shortwood to road side
- feller forwarder
- feller buncher/grapple skidder, full tree to road side delimbing and processing
- feller buncher/grapple skidder/stroke delimber, tree length to road side processing
- double or single grip processors, shortwood forwarding to road side
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Last Updated 08/06/2004