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10,957 results found
Buffers along streams cover a tremendous proportion of the land base in the forested systems of the western Pacific Northwest. These buffers were designated primarily to conserve and restore habitat for salmon and trout, but conservation of habitat for a number of other organisms also has been…
Author(s): Sally Duncan
Keywords: Stream buffers, amphibians, riparian management, Olympic Peninsula
Source: Science Findings. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. May (53): 1-5
Year: 2003
Forest management throughout the world is producing simplified forests. There is growing concern that these forests maintain neither complete vertebrate communities nor conditions favorable to maintenance of genetic diversity of those vertebrate populations that do find habitat in simply structured…
Author(s): Sally Duncan
Keywords: Genetic diversity, flying squirrels
Source: Science Findings. Portland, OR: Department of Agriculture, Forest Service, Pacific Northwest Research Station. February (51): 1-5
Year: 2003
Rural areas of the Pacific Northwest experienced a dramatic growth in population during the late 1980s to early 1990s. This growth was fueled by both push and pull factors, including environmental and natural resource based amenities. Such growth has not only stressed the capacity of rural counties…
Author(s): Stephen F. McCool, Linda E. Kruger
Keywords: Human migration, population growth, natural resource management, environmental amenities, social and environmental change, population dynamics
Source: Gen. Tech. Rep. PNW-GTR-580. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 19 p
Year: 2003
The STHARVEST computer application is Windows-based, public-domain software used to estimate costs for harvesting small-diameter stands or the small-diameter component of a mixed-sized stand. The equipment production rates were developed from existing studies. Equipment operating cost rates were…
Author(s): Roger D. Fight, Xiaoshan Zhang, Bruce R. Hartsough
Keywords: Cost (logging), logging economics, timber management planning, software, simulation
Source: Gen. Tech. Rep. PNW-GTR-582. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 12 p
Year: 2003
The effects of partial cutting on species composition, new and residual-tree cohorts, tree size distribution, and tree growth was evaluate on 73 plots in 18 stands throughout southeast Alaska. These partially cut stands were harvested 12-96 years ago, when 16-96% if the former stand basal area was…
Author(s): Robert L. Deal, John C. Tappeiner
Keywords: partial cutting, stand structure, tree growth, residual trees, regeneration, Sitka spruce, Western hemlock, Southeast Alaska
Source: Forest Ecology and Management. 159: 173-186
Year: 2002
The effects of partial cutting on species composition, stand structure and growth, tree size distribution, and tree disease and mortality were evaluated on 73 plots in 18 stands that were harvested 12–96 years ago in southeast Alaska. Partially-cut stands had diverse and highly complex stand…
Author(s): Robert L. Deal, J.C. Tappeiner, Paul E. Hennon
Source: Forestry. 75(4): 425-431
Year: 2002
The adoption of ecosystem-based management strategies focuses attention on the need for broad scale estimates of ecological conditions; this poses two challenges for the science community: estimating broad scale ecosystem conditions from highly disparate data, often observed at different spatial…
Author(s): Thomas M. Quigley, Richard W. Haynes, Wendel J. Hann
Keywords: ecological integrity, ecosystem, ecosystem management, Interior Columbia basin, management support
Source: Forest Ecology and Management. 153: 161-178
Year: 2001
Significant changes over the past 150 years in aquatic, terrestrial, landscape, and socioeconomic systems have altered biophysical systems in the interior Columbia basin. Changes and conflict in public policy concerns, such as resource use vs. restoration vs. conservation are especially evident in…
Author(s): Richard W. Haynes, Thomas M. Quigley, Jodi L. Clifford, Rebecca A. Gravenmier
Keywords: forest management, ecosystems, land management planning
Source: Forest Ecology and Management. 153: 3-14
Year: 2001
This paper examines the socioeconomic effects of alternative management strategies for Forest Service and Bureau of Land Management lands in the interior Columbia basin. From a broad-scale perspective, there is little impact or variation between alternatives in terms of changes in total economic…
Author(s): Lisa K. Crone, Richard W. Haynes
Keywords: Social impacts, Economic impacts, Socioeconomic resiliency
Source: Forest Ecology and Management. 153: 147-160
Year: 2001
We present 27-year results from a comparison of clear-cutting and shelterwood harvesting in the boreal forest of Alaska. Three patch clearcut and three shelterwood units were harvested in 1972; about 100 dispersed white spruce (Picea glauca (Moench) Voss) leave trees per hectare were…
Author(s): T.L. Wurtz, J.C. Zasada
Source: Canadian Journal of Forest Research. 31: 999-1011
Year: 2001
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