- Cable logging
- Logging that involves the transport of logs from stump to collection points (landings)
by means of suspended steel cables. Cable logging leaves compacted skidding scares
forever on the landscape.
- Canopy
- The part of any stand of trees represented by the tree crowns. It usually refers
to the uppermost layer of foliage, but it can be use to describe lower layers in
a multi-storied forest.
- Cavity
- A hole in a tree often used by wildlife species, usually birds, for nesting,
roosting, and reproduction.
- Checkerboard Ownership
- A land ownership pattern in which every other section (square mile) is in federal ownership as a result of federal land grants to early western railroad companies.
- Chemical control
- The use of pesticides and herbicides to control pests and plant species that
invade an area as a result of clearcutting and other impactful management practices.
- Clear cut
- A harvest in which all or almost all of the trees are removed in one entry. Also
called 'deforestation'. (See regeneration harvest.)
- Climax
- The culminating stage in plant succession for a given site. Most forests in the
PNW are a Hemlock tree overstory climax forest, but because of natural fire, most
forests are really a Douglas Fir overstory.
- Coos Bay Wagon Road (CBWR) Lands
- Public lands granted to the Southern Oregon Company and subsequently reconveyed to the United States.
-
- Congressionally reserved area
- These lands have been reserved by an act of Congress for specific land allocation
purposes, such as wilderness areas, wildlife refuges, etc.
- Conifer
- A tree that produces cones, such as a pine, spruce, or fir tree. Most conifer
trees are 'evergreen', but a few, such as Larch, are deciduous.
- Connectivity (of habitats)
- The linkage of similar but separated vegetation stands by corridors of like vegetation.
We often use this term to see if old-growth forests are connected to each other,
allowing larger species gene pools, or are fragmented into islands by clear cuts.
- Connectivity/diversity blocks
- A land designation of BLM matrix lands. (See General
Forest Management Area.)
- Consumptive use
- Use of resources that reduces the supply, such as logging, mining and grazing.
- Corridor
- Elements of the landscape that connect similar areas, such as old-growth forests.
- cover
- Any feature that conceals wildlife or fish. Cover may be dead or live vegetation,
boulders, or undercut streambanks. Animals use cover to escape from predators (including
hunters), rest, or feed.
- Cover forage ratio
- The ratio of hiding cover to foraging areas for wildlife species.
- Cover type (forest cover type)
- Stands of a particular vegetation type that are composed of similar species.
In the Umpqua, we often have a Hemlock or white fir cover type.
- Created opening
- The nice term used to described deforestation. USFS official definition: An opening
in the forest cover created by the application of even-aged silvicultural practices.
(See Clear cut.)
- Critical habitat
- Areas designated for the survival and recovery of federally listed threatened
or endangered species.
- Cruise
- Estimating monetary value of a forest for subsequent auction to the timber industry.
- Cubic Foot
- A unit of solid wood, one foot square and one foot thick.
-
- Cultural resource
- The remains of sites, structures, or objects used by people in the past; this
can be historical or pre-historic.
- Cumulative effects
- Effects on the environment that result from separate, individual actions that,
collectively, become significant over time.