Treesearch

This publication presents highlights of a recent southeast Alaska inventory and analysis conducted by the Pacific Northwest Research Station Forest Inventory and Analysis Program (USDA Forest Service). Southeast Alaska has about 22.9 million acres, of which two-thirds are vegetated. Almost 11 million acres are forest land and about 4 million acres have nonforest vegetation (herbs and shrubs). Species diversity is greatest in western hemlock–Alaska cedar closed-canopy forests, in mixed-conifer open and woodland forests, and in open tall alder-willow shrub type. Of the forest land, 4.1...

This report is a summary of timber resource statistics for all ownerships in Oregon. Data were collected as part of several statewide multiresource inventories, including those conducted by the Pacific Northwest Region (Region 6) on National Forest System lands in Oregon, by the Bureau of Land Management (BLM) on BLM lands in western Oregon, and by the Pacific Northwest Research Station Forest Inventory and Analysis (FIA) Program on BLM lands in eastern Oregon and state and private lands across Oregon. Statistical tables provide estimates of land area, timber volume, growth, mortality, and...

Survey data from home shows in Seattle, Washington and Anchorage, Alaska were used to determine the sources of product information used by consumers when buying kitchen cabinets. Results show that in-store sales staff are the most common source of product information, and that consumers' favorite wood species, age, and gender can influence the source of product information chosen. It was concluded that wood products manufacturers should consider customer demographics in their marketing efforts.

A great deal of big game research occurred in western North America during the 1960s through the 1980s, and many advances in our knowledge occurred as a result. Timber harvest increased during this period in many localities, and this trend was often perceived to threaten ungulate populations (Hieb 1976). Thus, it is not surprising that appreciable research in this era focused on relations between forestry and elk (Cervus elaphus). Logging's most apparent immediate effect is modification of the forest overstory, and a concept arose that was new, at least in the West, for elk-dense forest...

Stand structure and dynamics were evaluated in mixed red alder (Alnus rubra Bong.) - conifer forests of southeast Alaska. We assessed stand development, tree density, total basal area, diameter distribution of live and dead trees, height distribution of live trees, and mean diameter of all and largest conifers in 40-year-old red alder - conifer stands that developed following logging. Forty-five plots were established in nine stands sampled across a compositional range of 0%-86% alder. Alder height growth was initially rapid then slowed considerably, whereas conifer height growth was...

Changing social contexts have necessitated a new approach to forest management. Growing dissatisfaction with clearcutting has made the USDA Forest Service the focus of criticism by various public interest groups.We discuss and provide a comprehensive annotated list of published and unpublished references on the subject of socially acceptable alternatives to clearcutting, with emphasis on southeast Alaska. The literature reveals that social acceptability is a complex synthesis of multiple opinions, values, and attitudes, and indicates that both qualitative and quantitative social science...

We studied epiphytic macrolichen communities in northern and central California to 1) describe how gradients in community composition relate to climate, topography, and stand structure and 2) define subregions of relatively homogeneous lichen communities and environmental conditions. Non-metric multidimensional scaling was used to characterize landscape-level trends in lichen community composition from 211 plots. We found two gradients in lichen community composition that corresponded with macroclimatic gradients: one correlated with temperature variables and elevation, the second with...

Elk (Cervus elaphus), mule deer (Odocoileus hemionus) and cattle share millions of acres of public and private forests and rangelands across the western United States and Canada. These three species have important social, ecological and economic values. Understanding their interspecific interactions may clarify two recurring issues in their management: competition for food and competition for space, both may result in decreased animal fitness. Animal unit equivalents (AUEs) among these three species have been based on equivalent body mass (Society for Range Management 1989), whereby one...

In southern pine (Pinus spp.) stands, managers have used a variety of treatments to control hardwood encroachment and improve habitat conditions for northern bobwhites (Colinus virginianus). We compared use of the herbicide Arsenal® (BASF Corporation, Research Triangle Park, N.C.) (imazapyr) and traditional mechanical treatments, with and without fire, to control hardwood encroachment on study sites on Tall Timbers Research Station in the Red Hills Region near Tallahassee, Florida. Hardwood stem density decreased on herbicide and herbicide+burn plots but increased on all mechanically...

A sawing simulator, AUTOSAW, was used to examine the effect of increasing sweep on lumber recovery. Sample material consisted of 51 logs from 22 western hemlock (Tsuga heterophylla (Raf.) Sarg. ) trees in western Oregon, United States. All knots on the 4.9-m logs were measured, mapped, and converted into 3-dimensional digital formats. The digital logs were then increasingly bent, in 25.4-mm (1-inch) increments, with the bend occurring at the mid-point for one set of logs and at quarterway from the log small-end for another, and sawn into primarily structural grade dimension lumber. On...