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Filtering by: Publisher U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station Remove constraint Publisher: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station Resource Type Technical Report Remove constraint Resource Type: Technical Report

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Composition, volume, and prices for major softwood lumber types in western Oregon and Washington, 1971-2020

Creator:

Weigand, James F.

Abstract:

An analysis of lumber prices provided regressions for price trends during the period 1971-95 for composite lumber grades of major timber species found in the Pacific Northwest west of the crest of the Cascade Range. The analysis included data for coastal Douglas-fir and hem-fir lumber; coastal and inland Pacific Northwest...

Resource Type:

Technical Report
Growth and yield of western larch under controlled levels of stocking in the Blue Mountains of Oregon

Creator:

Cochran, P.H.

Abstract:

Repeated thinning to five growing-stock levels resulted in widely differing tree sizes and volumes per acre after 30 years. Largest trees but the least cubic-volume yield per acre were produced in the heaviest thinning level, whereas highest board-foot yields were found in intermediate thinning levels. partial defoliation by larch casebearer...

Resource Type:

Technical Report
Lodgepole pine development after early spacing in the Blue Mountains of Oregon

Creator:

Cochran, P.H. and Dahms, Walter G.

Abstract:

Seedlings were thinned to spacings of 5, 9, 12, 15, and 18 feet and measured periodically. Twenty-seven years after treatment, quadratic mean diameters increased curvilinearity (p < or = 0.05) as spacing increased, but total height did not differ significantly (p < or = 0.05) with spacing. Corresponding basal areas...

Resource Type:

Technical Report
Reduction in growth of pole-sized Ponderosa pine related to a Pandora moth outbreak in central Oregon

Creator:

Cochran, P. H.

Abstract:

A pandora moth (Coloradia pandora Blake) outbreak began in 1991 in a ponderosa pine (Pinus ponderosa Dougl. ex. Laws) spacing study area that also included scattered sugar pine (P. lambertiana Dougl). The relation of defoliation to five tree spacings (with and without understory vegetation) was examined, and stand growth reduction...

Resource Type:

Technical Report
Pilot experiment of forest fertilization during an outbreak of the western spruce budworm in Northeastern Oregon

Creator:

Mason, Richard R., Wickman, B. E., Paul, H. G., and Torgersen, T. R.

Abstract:

Mixed-conifer stands of grand fir (Abies grandis (Dougl. ex D. Don) Lindl., Douglas-fir (Pseudotsuga menziesii var. glauca (Beissn.) Franco), and ponderosa pine (Pinus ponderosa Dougl. ex Laws.) were fertilized with nitrogen and combination treatments of nitrogen, phosphorus, potassium, and sulfur to test their effects on trees and associated insects during...

Resource Type:

Technical Report
Stereo photo series for quantifying forest residues in coastal Oregon forests: second-growth Douglas-fir--western hemlock type, western hemlock--Sitka spruce type, and red alder type

Creator:

Ottmar, Roger D. and Hardy, Colin C.

Abstract:

A series of stereo photographs displays a range of residue loadings for cleancut units in three general forest types common to coastal Oregon forest lands: Douglas-fir--western hemlock (second-growth), western hemlock--Sitka spruce, and red alder. Postburn residue levels are also represented for the Douglas-fir--western hemlock, and red alder types. Information with...

Resource Type:

Technical Report
Invertebrates of the H. J. Andrews Experimental Forest, western Cascade Mountains, Oregon. IV, the oribatid mites (Acari: Cryptostigmata)

Creator:

Moldenke, Andrew R., Fichter, Becky L., Pacific Northwest Research Station (Portland, Or.), and H.J. Andrews Experimental Forest (Or.)

Abstract:

A fully illustrated key is presented for identifying genera of oribatid mites known from or suspected of occurring in the Pacific Northwest. The manual includes an introduction detailing sampling methodology; an illustrated glossary of all terminology used; two color plates of all taxa from the H.J. Andrews Experimental Forest; a...

Resource Type:

Technical Report
Modification of Mixed-Conifer Forests by Ruminant Herbivores in the Blue Mountains Ecological Province

Creator:

Riggs, Robert A., Tiedemann, Arthur R., Cook, John G., Ballard, Teena M., Edgerton, Paul J., Vavra, Martin, Krueger, William C., Hall, Frederick C., Bryant, Larry D., Irwin, Larry L., and Delcurto, Timothy

Abstract:

Secondary plant succession and the accumulation of biomass and nutrients were documented at seven ruminant exclosures in Abies and Pseudotsuga forests variously disturbed by logging, burning, and grass seeding. Long-term (25 or more years) foraging by Rocky Mountain mule deer (Odocolleus hemionus) and Rocky Mountain elk (Genius elaphus) suppressed the...

Resource Type:

Technical Report
Comparative effects of precommercial thinning, urea fertilizer, and red alder in a site 11, coast Douglas-fir plantation

Creator:

Miller, Richard E., Obermeyer, Edmund L., and Anderson, Harry William

Abstract:

The authors varied the number of red alder retained with 300 Douglas-fir per acre on a high-quality site in coastal Oregon. Alder densities of 0, 20, 40, and 80 per acre were tested. The authors' fifth treatment eliminated nitrogen-fixing alder, but substantial nitrogen fertilizer. Treatment 6 had neither thinning nor...

Resource Type:

Technical Report
Trends in key economic and social indicators for Pacific Northwest states and counties

Creator:

Raettig, Terry L.

Abstract:

Local (Country) variations in key social and economic indicators are important in Oregon and Washington. Covered employment, wage and salary, unemployment, and population data for 1987 through 1997 showed regional trends in these indicators, which are compared with national trends. Future updates will be published in the 'Production, Prices, Employment,...

Resource Type:

Technical Report

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Academic Affiliation

Forest Science1

Creator

Pacific Northwest Forest And Range Experiment Station (Portland, Or.)10
Bryant, Larry D.2
Cochran, P.H.2
Ottmar, Roger D.2
Raettig, Terry L.2
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Date

Date range begin – Date range end

Current results range from 1936 to 2006

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Decade

2000-20096
1990-199917
1980-19895
1960-19691
1950-19597
1940-19493
1930-19391

File Format

application/pdf30

Language

English [eng]40

License

All rights reserved3
Public Domain Mark 1.01

Location

Redwood National Park, California, United States, (Area)1

Non-Academic Affiliation

Oregon Explorer23

Peer Reviewed

No25
Yes3

Resource Type

Technical Report[remove]40

Rights Statement

Copyright Not Evaluated32
In Copyright7
No Copyright - United States1

Subject

Forests and forestry -- Washington (State)2
Prescribed burning -- Oregon2
Red alder2
Animal-plant relationships -- Blue Mountains (Or. and Wash.)1
Applegate River Watershed (Or.)1
more Subjects »

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