- DBH (diameter at breast height)
- The diameter of a tree 4 and 1/2 feet above the ground on the uphill side of
the tree.
- DEIS (Draft Environmental Impact Statement)
- The draft version of the Environmental Impact Statement that is released to the
public and other agencies for review and comment.
- DEMO (Demonstration of Ecosystem Management)
- The DEMO project is a forest service study to determine the effects of logging
on the old-growth characteristics of a forest. 4 areas were chosen in the Gifford-Pinchot
and 4 in the Umpqua National Forest. Of the areas in the Umpqua, two are in Diamond
Lake, one in Cottage Grove, and one in N. Umpqua. The one in N. Umpqua has been withdrawn
by the Forest Service, Little River DEMO.
Each area has 6 timber sale units, each with a different kind of logging prescription.
At least two out of the six will have 85% of the trees removed. That makes a virtual
clearcut on 16 units in DEMO. Our main objection to DEMO is, do they really need
to do deforestation to test the effects on old-growth characteristics?
- Density Management
- The cutting of trees for the purpose of widening their spacing so that growth of remaining trees can be accelerated.
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- Desired future condition
- Land or resource conditions that are expected to result if goals and objectives
are fully achieved.
- Developed recreation
- Recreation that requires facilities that, in turn, result in concentrated use
of the area. For example, ORVers require, parking lots and trails. Campgrounds require
roads, picnic tables, and toilet facilities.
- Dispersed recreation
- Recreation that does not occur in a developed recreation site, such as hunting,
backpacking, and scenic driving.
- District Manager
- The official responsible for administering BLM lands on entire the district.
The District Manger for the Roseburg BLM district is Cary Osterhaus. (See 'Forest
Supervisor' for the USFS equivalent.)
- Disturbance
- Any event, such as forest fire, insect infestations or clear cut that alter the
structure, composition, or functions of an ecosystem.