Treesearch

Employment and earnings in Georgia's forest products industry, like those of most Southern States, grew significantly between 1970 and 1980. The forest products industry accounted for nearly the same share of the State's economic base in 1980 as in 1970. Moreover, during this period, the State increased its share of the Nation's forest products industry employment and earnings. Pulp and allied products had the highest productivity, but lumber and wood products experienced the largest increase in productivity between 1972 and 1977.

Equations and curves are presented for estimating height and site index of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) on hot, dry sites in the Willamette National Forest in western Oregon. The equations are based on the dissected stems of 27 trees. The curves differ from those previously published for Douglas-fir. Instructions are presented for their use.

Seven silvicultural treatments were applied in a 20-year-old natural western red-cedar (Thuja plicata) Donn ex D. Don) stand on a poor site in coastal Washington: (1) control (unthinned, unfertilized); (2) unthinned, fertilized with ammonium nitrate, monodicalcium phosphate, and potassium sulfate; (3) thinned, unfertilized; (4) thinned, fertilized with urea; (5) thinned, fertilized with ammonium nitrate; (6) same as treatment 5 plus monodicalcium phosphate; (7) same as treatment 6 plus potassium sulfate. Treatments 2 through 7 resulted in significantly better 3-year height and diameter...

A sample of 400 ponderosa pine (Pinus ponderosa Dougl. ex Laws.) trees was selected from each of two sale areas in the Black Hills National Forest, South Dakota. The logs were processed through two sawmills into 1-inch-thick boards. Estimates of volume and value recovery based on cubic volume and board foot volume are shown in tables and figures.

The volume of timber harvested in southeast Alaska between 1909 and 1983 was 14,689 million board feet; nearly all was transported on water to various destinations for processing. In 1971 there were 69 active log transfer and storage facilities and 38 raft collecting and storage facilities in southeast Alaska. In 1983 there were 90 log transfer sites, 49 log storage sites, 228 sites proposed for log transfer development, and 12 sites proposed for log storage development. We calculated that there were 176 acres of estuarine habitat covered by bark from 90 log transfer sites in 1982....

Thinning is recommended for maintaining vigorous tree growth to minimize losses caused by spruce beetles (Dendroctonus rufipenni Kirby) and windthrow in residual stands of spruce in south-central Alaska. The anatomy of conifer stems, the variation in stem diameter growth, and the variability of tree response to wounding are discussed to explain why trees become vulnerable to attack by bark beetles. A working hypothesis, that beetle-attack patterns on the lower bole of trees have evolved to take advantage of the weak defense of a stressed tree, is presented as a rationale for maintaining...

This translation, based on a list of Russian names of insects and mites by W. Laux and G. Schmidt and published in 1979, is designed to assist English-speaking entomologists and other biologists in identifying insect species from their Russian vernacular names as listed in Soviet Union journals. The translation consists of three lists: (1) species arranged taxonomically (orders, families, genera, and species); (2) scientific (Latin) binomials (genus and species) arranged alphabetically; and (3) translated common names in alphabetical sequence. Each list contains 1,345 entries, and each...

Early in 1979, the School of Agriculture and Land Resources Management of the University of Alaska-Fairbanks surveyed forest managers in a number of northern countries to identify topics of circumpolar interest in forest management. Responses most frequently centered on problems of forest regeneration. As a result, we initiated what was to be a series of international workshops to address the problem of obtaining adequate and economical forest regeneration at high latitudes. Our initial efforts were financed by a generous grant from the United States Department of Agriculture, U.S. Forest...

Public and private lands in the United States are used by millions of people for recreational activities. Many of these activities occur in or near streams and coastal areas that produce various species of anadromous fish. A major concern of fishery managers is the possible adverse effect of recreational uses on fish habitat. Conversely, the management of fish habitats may have either positive or negative effects on recreation. Recreational issues affecting either the supply of habitat for anadromous fish production and use, or the demand for the fisheries are also discussed. Opportunities...

This report was developed from discussions on the role of Ceanothus in western forests that took place at a workshop held November 22-24, 1982, at Oregon State University, Corvallis, Oregon. The workshop provided a forum for discussing research relevant to Ceanothus management. Major topics were autecology and synecology; interactions between Ceanothus species and the soil system; the physiological ecology of Ceanothus and associated conifers; and the effects of Ceanofhus on forest productivity and growth. The workshop was attended by scientists and land managers from government agencies,...