Treesearch

This guide will assist field identification of Potentilla species likely to be found in the Blue Mountains region. Many species formerly classified in the genus Potentilla are also included. Illustrations accompany the descriptions and glossary.

Results of independent applications of a technical and a participatory approach to SIA are compared for an assessment of impacts of the proposed removal of hydroelectric dams to recover threatened and endangered salmon in the Pacific Northwest of the United States. The analysis focuses on empirical differences and similarities between the technical social analysis report (SAR) and the participatory interactive community forum (IC19 in terms of indicators used, projection of impacts, and types of social impacts identified in two communilies. The SAR used a more homogeneous set of social...

The Forest Inventory and Analysis Program collected, analyzed, and summarized field data on 46 forested plots on the island of Guam. Estimates of forest area, tree stem volume and biomass, the numbers of trees, tree damages, and the distribution of tree sizes were summarized for this statistical sample. Detailed tables and graphical highlights provide a summary of Guam's forest resources and a baseline from which to detect future change following remeasurement of the permanent field plots.

This proceedings is a collection of 18 papers and extended abstracts based on talks presented at the International Union of Forest Research Organizations (IUFRO) All Division 5 Conference, held in Rotorua, New Zealand, March 11–15, 2003. This conference emphasized the many ways that forest products research can contribute to sustainable choices in forest management. The two IUFRO Research Groups represented in this proceedings are the Sustainable Production of Forest Products Research Group (5.12) and the Non-wood Forest Products Research Group (5.11). The papers address many aspects of...

Although much is known about truffle abundance and rodent mycophagy in mesic Douglas-fir forests in the Pacific Northwest, few data are available for dry interior montane forests dominated by ponderosa pine (Pinus ponderosa), Douglas-fir (Pseudotsuga menziesii), and grand fir (Abies grandis). Our objective was to quantify the relationship between the abundance and diversity of ectomycorrhizal fungal sporocarps in the soil and in the diets of northern flying squirrels (Glaucomys sabrinus) in low elevation forests of the eastern Washington Cascades. We randomly sampled four stands each of...

To address concerns about sustainable forestry in the region, the Focused Science Delivery Program is sponsoring a three year Sustainable Wood Production Initiative. The Pacific Northwest is one of the world's major timber producing regions, and the ability of this region to produce wood on a sustained yield basis is widely recognized. Concerns relating to the ecological, social and economic contributions of sustainable forestry, however, will play a major role in future wood production of the region.

Land use in the United States is dynamic, as discussed in Chapter 2, with millions of acres of Land shifting uses each year. Many of these land-use changes are the result of market forces in an economy affected by modem technology and policy choices. Changes in land use are the result of choices inade by individuals, corporations, nongovernmental organizations, and governments. This chapter considers forces that act at broad scales to affect land-use changes, operating via land markets, where they exist, and evidenced by the behavior of econoinic agents over a broad geography. The specific...

Concerns have grown about the loss of forestland to development, leading to both public and private efforts to preserve forestland as open space. These lands comprise social values-ecological, scenic, recreation, and resource protection values-not typically reflected in market prices for land. When these values are present, it is up to public and private agencies to provide them in sufficient quantity. We discuss nonmarket social values in the context of forestland market values, to explain the economic rationale for public and private efforts to protect forestland as open space.

An undescribed truffle found on the Fort Lewis Military Reservation near Olympia, Washington, is described as Pachyphloeus thysellii. This new species, associated with Pseudotsuga menziesii, closely resembles Pachyphloeus prieguensis from southern Europe. It differs from the latter in having yellow veins and patches showing among the minute, brown warts on the peridial surface, smaller asci, and a different mycorrhizal host.