Knowledge of old-growth Juniperus occidentalis woodlands, which occur in central and eastern Oregon, is limited. Wise management of these woodlands necessitates a better understanding of the community ecology. The community structure of woodlands at seven sites in three areas of central Oregon was studied. Measurements taken at nine plots per...
The forests of the Oregon Coast Range have been both the principal
natural resource, and for many years, the primary economic base of the region. In the past thirty years, changing social and economic factors have created new visions for these forests, leading to conflict over the appropriate management of...
Our diagram is intended to provide general guidance in density management of red alder. The management zone defines a reasonable compromise between individual-tree and stand growth and mortality. Factors considered in its formation include desired tree size at harvest, growth rate, and yield per acre. Social and legal constraints, as...
Western society's ongoing cultural shift toward quality of life values and associated increased public participation expectations affects forest managers. The rapid urban growth experienced by the U.S. is increasing both the area of the urban-forest interface zone and the number of residents residing in that zone. The study site of...
The goal of this study is to analyze how the ISC Conservation Strategy may influence Oregon's timber availability and economy in the context of overall changes in public land management. Two themes are important: first, how the state's future will differ from today and second, how the state's future will...
Forest management has been influenced by many social and political changes, and one of the most prominent is the increasing urbanization of neighboring lands. As a result, forests once relatively far removed from urban areas now share boundaries with residential developments, and receive increasing pressure to provide recreation and other...
Three heuristic techniques: simulated annealing (SA), tabu search (TS), and tabu search with strategic oscillation (TSSO), were used to schedule silvicultural activities designed to accelerate development of older forest structure at both stand and landscape scales over a 2450 acre forest located in northwestern Oregon. Goals for the forest over...
This study estimates a range of opportunity costs associated with three land
management alternatives for a site in the Oregon Coast Range. A 35,000 acre site was
selected which includes a mix of federal and private land ownership and provides
significant biological resources. The first alternative examines a plan for...
Forest management requires classification of forest stands into groupings or types based on structural similarities, even when structure varies continuously along gradients. Managed, mixed-species, multi-aged forest stands often display complex structures containing extreme variation in trees size, density, and species composition, and as a result have diverse canopy structures. A...