Wilderness areas -- United States. ; <br> Camp sites, facilities, etc. -- United States.
The overall trend in condition on established campsites was one of slight deterioration, with the most deterioration occurring in campsite area, mineral soil exposure, and tree damage. Impacts to ground cover vegetation were relatively stable....
Wildlife conservation - - United States - - Valuation. ;<br> Wildlife conservation - - Economic aspects - - United States.
Considerable progress has been made in recent years in the valuation of non-priced goods. However, emphasis has been on those things most readily measurable. Valuation of wildlife benefits, for example, has aimed at consumptive, on-site...
Wildlife conservation - - United States. ;<br> Fishery management - - United States.
A national assessment of wildlife and fish can be accomplished by completing three analytical components of the Forest and Rangeland Renewable Resources Planning Act: providing a statement of historical and current land, wildlife, and fish...
Wildlife conservation United States. ; <br>Wildlife conservation -- United States. ; <br> Petroleum engineering -- United States. ; <br> Petroleum -- United States.
This report describes: (1) petroleum exploration, development, and production; (2) potential environmental disruptions; (3) effects of disruptions on wildlife behavior, habitat, and populations; and (4) strategies for minimizing and mitigating...