Silviculture
Silviculture is the science of controlling the establishment, growth, composition, and health of forests and woodlands. Silvicultural activities are used to meet diverse objectives and values of society. On the Umatilla National Forest, silviculture helps sustain the health and productivity of forest ecosystems administered on behalf of the American people.
Diseases
- Effects of the 1980s Western Spruce Budworm Outbreak on the Malheur National Forest in Northeastern Oregon
- Rating Forest Stands for Insect and Disease Susceptibility: A Simplified Approach (version 2)
- For additional information about protecting the health of forest ecosystems from disease, visit the Pacific Northwest Region Forest Health Protection site.
Silviculture Publications
- Forest Density Management: Recent History and Trends for the Pacific Northwest Region
- Forest Resources of the Umatilla National Forest
- Potential Vegetation, Disturbance, Plant Succession, and Other Aspects of Forest Ecology
- Suggested Stocking Levels for Forest Stands in Northeastern Oregon and Southeastern Washington: An Implementation Guide for the Umatilla National Forest
Silviculture White Papers
Generally, white papers are internal reports and have received only limited review. Often, white papers describe a methodology, model, or procedure being used by Forest Service employees, such as local protocols for developing database applications or conducting environmental analysis. Viewpoints expressed in white papers are those of the authors, and do not necessarily represent positions of the USDA Forest Service.
Why develop white papers? One reason for producing them is to synthesize relevant science information about a topic or issue, and thereby make it more accessible to natural resource professionals. Another reason is that some papers serve as sort of a ‘user guide’ for a specific database, map, or similar product developed for Umatilla National Forest.
A total of 58 silviculture white papers were developed covering vegetation management topics and issues, and they are available from this website.
Although white papers were prepared at different times, they were reformatted to provide a consistent ‘look and feel’ before adding them to this website.
Trees of the Blue Mountains
- Conifer Trees of the Umatilla National Forest
- For additional information about species in North America, visit the Silvics of North America site.
Environmental Education Resources
- In Search of Moon Trees
- Trees That Miss the Mammoths
- World's Oldest Ponderosa Pine?
- Why Leaves Change Color
Additional Resources
The following website links provide various resources for silviculturists to find research publications, photographs, databases, species identification, and more!
- British Columbia Publications
- CalFlora
- Conservation Library (U.S. Fish and Wildlife)
- E.V. Komarek Fire Ecology Database
- Fire Effects Information System (Forest Service)
- Forestry Assistance Information (Oregon Department of Forestry)
- Forestry Extension Program (Oregon State University)
- Forestry Images
- Forest Insect and Disease Leaflets
- Government Printing Office Bookstore
- Ingenta
- International Society of Arboriculture
- Library Services (Forest Service)
- National Agricultural Library
- National Arbor Day Foundation
- National Biological Information Infrastructure (USGS)
- National Forest Foundation
- National Register of Big Trees (American Forests)
- National Technical Information Service
- Oregon Department of Forestry
- Pacific Northwest Research Station
- Rocky Mountain Research Station
- Silvics of North America
- Society of American Foresters
- Technology and Development Center (Forest Service)
- Trees of the Pacific Northwest
- U.S. Geological Survey
- World Forestry Center