Treesearch

During the 1980s, log exports from Alaska have risen while cant (lumber) exports have declined. Eight explanations for the difference between cant and log market behavior are explored. It seems that declining demand for wood products in Japan and a surge of private-sector log harvests in Alaska are enough to account for the apparent substitution of logs for cants. It is also possible that, in select (highest) grades, logs directly displaced cants in the export market.

Effects of stratification period and incubation temperature on seed germination speed and uniformity were investigated in a bulked seed lot of 200 ponderosa pine trees (Pinus ponderosa Dougl. ex Laws.) sampled from 149 locations in central Oregon. Mean rate of embryo development towards germination (l/days to 50 percent germination) and standard deviation of rate were estimated in a replicated, factorial experiment with four stratification periods (15, 30, 60, and 120 days) and four incubation temperatures (10, 15, 20, and 25 °C). Higher mean rate and standard deviation of rate, respectivel...

Current conditions in Alaska timber markets are reviewed relative to the past two decades. Major issues in the outlook for Alaska timber markets are considered. Recent studies are used to develop projections of Alaska timber products output, timber harvest, and timber harvest by owner. The assumptions these projections depend on include the level of harvest on Native lands and consumption of sawn wood in Japan. Total harvest in Alaska is expected to average 660 million board feet per year during the early 1990s, and 545 million feet per year between 1995 and 2005. Harvest from National...

The Forest and Rangeland Renewable Resources Planning Act (RPA) of 1974 (88 Stat. 476 as amended) directs the U.S. Department of Agriculture to conduct a comprehensive assessment of all forest and range land resources on both public and private lands. Forest resource data collected from periodic surveys in each State and Forest Service Region were entered into a database management system, compiled, and summarized for the United States. Tables include information on area, volume, removals, and timber product outputs. This paper extracts sections of the 1989 RPA Assessment document.

Tables summarize volume and unit value of United States trade in forest products. Import and export data are shown for 18 groups of commodities aggregated from 800 individual commodity items; original data were collected and reported by the U.S. Department of Commerce. Data given for each commodity group include detail on trading partners and information on shipments through four regional aggregations of U.S. Customs Service Districts.

This report describes the primary meteorological station at the H.J. Andrews Experimental Forest (elev. 426 m, lat. 44°15' N., long. 122°10' W.) in the Willamette National Forest, the automatic digital data logger, sensors, and data-processing procedures used in measuring air temperature, dewpoint temperature, windspeed, precipitation, and solar radiation. The quasi-Mediterranean climate has mild, moist winters and warm, dry summers. Average daily air temperature in July is 17.8 °C; in January, 0.6 °C. Six percent of the mean yearly rainfall of 230.16 cm falls from June through August....

This report is a synthesis of results from an 11-year study of the effects of increasing intensities of range management strategies on herbage production, water resources, economics, and associated resources-such as wood fiber and recreation-in Grant County, Oregon. Four intensities of management were studied on Federal land (19 grazing allotments) ranging from no grazing to intensive management aimed at improving livestock distribution and forage production by applying cultural treatments. On private land (21 cooperating ranches), an additional strategy aimed at maximizing commodity...

Timber and deer managers have struggled through years of increasing demands and growing conflicts in the interior of Western North America. Integrated management, supported by a sound research data base and effectively communicated to all users, is presented as the only viable approach to an increasingly complex resource future. Two examples of tools recently designed for managers in dealing with timber-deer habitat are discussed.

A test of 10 provenances was established in 1969 on the central coast of Oregon. The provenances tested included Juneau, Alaska, and Sandpoint, Idaho, in addition to eight well-spaced locations in Oregon, Washington, and the southern end of Vancouver Island, British Columbia. Periodic measurements through 15 years of plantation development revealed differences among provenances in height, diameter, and height/diameter ratio. The calculated variables, bole volume and aboveground biomass, showed large differences among provenances. Two provenances from northwestern Washington consistently...

The local (Forest-level or local-area) demand for stumpage can be derived from estimates of regional supply and demand. The derivation of local demand is justified when the local timber economy is similar to the regional timber economy; a simple regression of local on nonlocal prices can be used as an empirical test of similarity between local and regional economies. Three local demand relations can be derived: (a) the relation between local quantity demanded, regional stumpage price, and other variables affecting supply and demand; (b) the relation between local quantity demanded, local...