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Browsing College of Forestry/Oregon Forest Research Laboratory (FRL) by Title

Browsing College of Forestry/Oregon Forest Research Laboratory (FRL) by Title

Now showing items 1101-1120 of 2397

Habitat relationships of small terrestrial vertebrates and invertebrates in managed forests in the southern Oregon Cascades

McDade, Kirsten Ayn (2001-07-10)

Silviculture systems that involve commercial thinning may provide higher quality wildlife habitat than traditional clearcut systems, yet such systems have not been vigorously tested. This prospective study examined for ...
Habitat structure and occupancy patterns of the montane frog, Rana cascadae, in the Cascade Range, Oregon, at multiple scales : implications for population dynamics in patchy landscapes

Brown, Catherine, 1958- (1997-01-30)

Associations between occupancy patterns of a montane anuran species, Rana cascadae, and habitat structure at multiple scales were examined to investigate how population structure may influence persistence in spatially an ...
Habitat use by cavity-nesting birds in young thinned and unthinned Douglas-fir forests of western Oregon

Weikel, Jennifer M. (1997-04-25)

There is limited information on how to manage young forests of the Pacific Northwest to benefit wildlife populations. Commercial thinning is becoming more important in young forests both as a tool for timber management ...
Habitat use by snag-associated species : a bibliography for species occurring in Oregon and Washington

Weikel, Jennifer M.; Hayes, John P. (John Parker); Oregon State University. Forest Research Laboratory ([Corvallis, Or.] : Oregon State University, Forest Research Laboratory, 2001)
Hardwoods of the Pacific Northwest

Niemiec, Stanley S.; Oregon State University. Forest Research Laboratory (Corvallis, Or. : College of Forestry, Forest Research Laboratory, Oregon State University, 1995)
Harvest scheduling and economic effects of old-growth forest preservation in northwest Oregon

Hunt, Mary C. (1986-02-24)

Old-growth forests provide an important resource in terms of both timber and non-timber values. Northwest Oregon represents an area where this resource is scarce and options for preserving old-growth habitat are limit ...
Harvest system selection and design for damage reduction in noble fir stands : a case study on the Warm Springs Indian Reservation

Matzka, Peter J. (1997-12-16)

Many high-elevation stands of noble fir in the northern Oregon Cascades are being actively managed. Forest managers are investigating different activities that will control stand impacts and the subsequent spread of He ...
Harvesting impacts on soil and understory vegetation: the influence of season of harvest and within-site disturbance patterns on clear-cut aspen stands in Minnesota

Berger, Alaina L.; Puettmann, Klaus J.; Host, George E. (NRC Canada, 2004-10)

We investigated impacts of harvesting on soil disturbance and vegetation in the aspen cover type of northern Minnesota, United States. The soil disturbance (resistance to penetration) and understory vegetation were char ...
Harvesting timber to achieve reforestation objectives

Jarmer, Christopher B.; Mann, John W.; Atkinson, William A. (Corvallis, OR: Forest Research Laboratory. Oregon State University, 1992)
Hazard rating system for spruce weevil (Pissodes strobi) in Sitka spruce in the northern Oregon Coast Range

Lysak, Teresa (2000-07-31)

The spruce weevil (Pissodes strobi) is a serious pest of Sitka spruce in Oregon. Weevils cause damage by killing the leader of a tree, resulting in defects such as crooks and forks that can render the tree unmerchantable ...
The health risks of herbicides in forestry : a review of the scientific record

Oregon State University. Forest Research Laboratory; Walstad, John D. (John Daniel), 1944-; Dost, Frank N. (Corvallis, OR : Forest Research Lab, College of Forestry, Oregon State University, 1984-04)
Heartwood decay resistance by vertical and radial position in Douglas-fir trees from a young stand

Gartner, B. L.; Morrell, J. J.; Freitag, C. M.; Spicer, R. (NRC Canada, 1999)

Heartwood durability of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco var. menziesii) was studied as a function of vertical and radial position in boles of trees with a wide range of leaf area/sapwood area ratios. Si ...
Heartwood formation and natural durability - a review

Taylor, A. M.; Gartner, B. L.; Morrell, J. J. (Society of Wood Science and Technology, 2002)

This paper reviews literature on the formation of heartwood and on the components that affect natural durability. It includes discussion about the function of heartwood in living trees, factors influencing the natural du ...
Heat conditioning of veneer blocks

Resch, H. (Helmuth); Parker, R.; Oregon State University. Forest Research Laboratory (Corvallis : Oregon State University, School of Forestry, 1979-12)
Heating Douglas fir veneer blocks : does it pay?

Grantham, John Bernard; Atherton, George H.; Oregon Forest Research Center (Corvallis, Or. : State of Oregon, Forest Products Research Center, 1959)
Height-diameter and volume equations, growth intercept and needle length site quality indicators, and yield equations for young ponderosa pine plantations in Neuquén, Patagonia, Argentina

Gonda, Hector Eduardo (1998-05-01)

Ponderosa pine (Pinus ponderosa Dougl. ex Laws.) is the most widely planted species in the Patagonian Andes region of Argentina for economic development. However, information on site quality and yield is so limited tha ...
Height-diameter equations for seventeen tree species in southwest Oregon

Larsen, David R.; Hann, David W.; Oregon State University. Forest Research Laboratory (Corvallis, OR : Forest Research Laboratory, College of Forestry, Oregon State University, 1987-01)
Height-diameter equations for six species in the coastal regions of the Pacific Northwest

Hanus, Mark L.; Marshall, David D.; Hann, David W.; Oregon State University. Forest Research Laboratory (Corvallis, OR : Forest Research Laboratory, College of Forestry, Oregon State University, 1999)
Height-diameter equations for sixteen tree species in the central western Willamette Valley of Oregon

Wang, Chao-huan; Hann, David W.; Oregon State University. Forest Research Laboratory (Corvallis, OR : Forest Research Laboratory, College of Forestry, Oregon State University, 1988-01)
Height-related trends in leaf xylem anatomy and shoot hydraulic characteristics in a tall conifer: safety versus efficiency in foliar water transport

Woodruff, D. R.; Meinzer, F. C.; Lachenbruch, B. (Wiley-Blackwell, 2008)

• Hydraulic vulnerability of Douglas-fir (Pseudotsuga menziesii) branchlets decreases with height, allowing shoots at greater height to maintain hydraulic conductance (Kshoot) at more negative leaf water potentials (Ψl ...