Treesearch

Methods and procedures are given for collecting and processing living and dead plant materials for the purpose of determining their water content. Wild-land fuels in Alaska are emphasized, but the methodology is applicable elsewhere. Guides are given for determining the number of samples needed to attain a chosen precision. Detailed procedures are presented for collecting fuel samples in the field, transporting them safely, and handling them in the laboratory. General guidelines for all live fuels and specific techniques for individual species are given.

Historical development of western redcedar (Thuja plicata Donn) trees and stands, 46 to 58 years old, was analyzed on four upland sites in western Washington.

This report presents the findings of a 100-percent survey of the primary forest products industry in Oregon for 1982. The survey included the following sectors: lumber; veneer and plywood; pulp and board; shake and shingle; export; and post, pole, and piling. Tabular presentations include characteristics of the industry, nature and flow of logs consumed, and disposition of mill residues, by sector and for the industry as a whole.

Height growth and site index curves and equations are presented for unmanaged even-aged stands of western hemlock and Sitka spruce in southeast Alaska. Data were mostly collected in stands that developed after logging.

This report presents the findings of a 100-percent survey of the primary forest products industry in California for 1982. The survey included the following sectors: lumber; veneer and plywood; pulp and board; shake and shingle; export; and post, pole, and piling. Tabular presentations include characteristics of the industry, nature and flow of logs consumed, and disposition of mill residues, by sector and for the industry as a whole.

Effects of wrenching Douglas-fir seedlings in August of their second season in the D. L. Phipps State Forest Nursery, Elkton, Oregon, were determined by periodic samplings to learn of changes in phenological, morphological, and growth characteristics. Initial effects of wrenching moderated by January when seedlings were lifted; both wrenched and unwrenched seedlings had grown substantially larger. Survival and growth of seedlings were good during the first 5 years after outplanting in droughty skeletal soil on southeast and northeast slopes in the South Umpqua River drainage of southwestern...

A summary is presented of a timber resource inventory in western Washington conducted to determine the extent of timberland and timber resources in three forest zones, each defined by its proximity to developed nonforest areas. The methods used are explained, and tables of timberland area and timber volume by forest zone are presented.

Dispersed recreation along forest roads in generally undeveloped areas is increasing rapidly in the West. To effectively manage this use and integrate it with other forest activities requires information about the preferences, expectations, and opinions of forest visitors and their patterns of recreation use. Results of a 3-year study of campers and day users in three roaded forest areas of Washington and Oregon suggest this type of area provides opportunities that are very different from those in developed campgrounds and primitive backcountry. Visitors to roaded, forested areas like the...

Large, fallen trees in various stages of decay contribute much-needed diversity to terrestrial and aquatic habitats in western forests. When most biological activity in soil is limited by low moisture availability in summer, the fallen tree-soil interface offers a relatively cool, moist habitat for animals and a substrate for microbial and root activity. Intensified utilization and management can deprive future forests of large, fallen trees. The impact of this loss on habitat diversity and on long-term forest productivity must be determined because managers need sound information on which...

The hardwood resource in western Oregon is described by species and ownership. Changes in the private hardwood resource between 1961-62 and 1973-76 are shown. Statistics of size, volume, and ownership by county are presented for red alder (Alnus rubra Bong.) and bigleaf maple (Acer macrophyllum Pursh).