Index Catalog // ScholarsArchive@OSU

Creator:: Roloff, Gary J., Mealey, Stephen P., and Bailey, John D.
Abstract:: We conducted a comparative hazard assessment for 325,000 ha in a fire-prone area of southwest Oregon, USA. The landscape contains a variety of land ownerships, fire regimes, and management strategies. Our comparative hazard assessment evaluated the effects of two management strategies on crown fire potential and northern spotted owl (Strix...
Resource Type:: Article
Full Text:: (Strix occidentalis caurina) conservation: 1) no action, and 2) active manipulation of 20 hazardous

Creator:: Mack, Jason, Hatten, Jeff, Sucre, Eric, Roberts, Scott, Leggett, Zakiya, and Dewey, Janet
Abstract:: Forest harvesting intrinsically removes organic matter and associated nutrients; these exports may impact soil productivity and soil carbon stores of managed forests. This study examined the effect of manipulating forest floor and harvest residue inputs on nutrient availability and carbon content in the context of intensive forest management. Treatments were...
Resource Type:: Article
Full Text:: the added treatment was 31% higher than the 30 removed, but no significant difference was found

Creator:: Latta, Gregory, Temesgen, Hailemariam, Adams, Darius M., and Barrett, Tara
Abstract:: As global climate changes over the next century, forest productivity is expected to change as well. Using PRISM climate and productivity data measured on a grid of 3356 plots, we developed a simultaneous autoregressive (SAR) model to estimate the impacts of climate change on potential productivity of Pacific Northwest (PNW)...
Resource Type:: Article
Full Text:: . The CSIRO Mk3 Climate System Model. CSIRO Atmospheric Research technical paper No. 60. 130 pp., 2002

Creator:: Cowan, Ariel D., Smith, Jane E., and Fitzgerald, Stephen A.
Abstract:: Fuel accumulation and climate shifts are predicted to increase the frequency of high-severity fires in pon-derosa pine (Pinus ponderosa) forests of central Oregon. The combustion of fuels containing large downedwood can result in intense soil heating, alteration of soil properties, and mortality of microbes. Previousstudies show ectomycorrhizal fungi (EMF) improve...
Resource Type:: Article
Full Text:: soil properties and nutrients in HB soils com- pared to LB and UB soils; (b) no differences in EMF

Creator:: Agee, James K. and Skinner, Carl N.
Abstract:: Successful fire exclusion in the 20th century has created severe fire problems across the West. Not every forest is at risk of uncharacteristically severe wildfire, but drier forests are in need of active management to mitigate fire hazard. We summarize a set of simple principles important to address in fuel...
Resource Type:: Article
Full Text:: , 1996; Weatherspoon, 1996), maintain- ing no change in surface fire behavior generally requires a

Creator:: Agee, James K. and Skinner, Carl N.
Abstract:: Successful fire exclusion in the 20th century has created severe fire problems across the West. Not every forest is at risk of uncharacteristically severe wildfire, but drier forests are in need of active management to mitigate fire hazard. We summarize a set of simple principles important to address in fuel...
Resource Type:: Article
Full Text:: , 1996; Weatherspoon, 1996), maintain- ing no change in surface fire behavior generally requires a

Creator:: Sensenig, Thomas, Bailey, John D., and Tappeiner, John C.
Abstract:: We studied stand development in three distinct forest types in southwestern Oregon using six stands each in uncut and clear-felled old-growth stands and nearby young stands (18 total). Old-growth stands showed a wide range of tree ages (>300 years) and low tree densities for several centuries; rapid early growth produced...
Resource Type:: Article
Full Text:: no evidence of fire, however, in either old-growth or young stands after 1909, and their densities

Creator:: Nabel, Mark R., Newton, Michael, and Cole, Elizabeth C.
Abstract:: Post-thinning natural regeneration in the Pacific Northwest of USA was evaluated 13 years after thinning 50-year-old Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco var. menziesii) stands on a drier, interior Coast Range site (McDonald) and 10 years after thinning 50- to 55-year-old Douglas-fir/western hemlock (Tsuga heterophylla [Raf.] Sarg.) stands on a moister,...
Resource Type:: Article
Full Text:: . No at- tempts were made to minimize damage to advance regeneration during forest operations and no

Creator:: Beschta, Robert L. and Ripple, William J.
Abstract:: Gray wolves (Canis lupus) were reintroduced into Yellowstone National Park in 1995-96, thus completing the park’s large predator guild. In the fall of 2010, approximately 15 years after wolf reintroduction, we sampled ten genera/species of berry-producing shrubs within 97 aspen (Populus tremuloides) stands in the park’s northern ungulate winter range....
Resource Type:: Article
Full Text:: of berry-producing shrubs, and no aspen recruitment. Note the two-tiered aspen stand structure

Creator:: Krankina, Olga N., Harmon, Mark E., Schnekenburger, Frank, and Sierra, Carlos A.
Abstract:: The management of federal forest lands in the Pacific Northwest (PNW) region changed in early 1990s when the Northwest Forest Plan (NWFP) was adopted with the primary goal to protect old-growth forest and associated species. A major decline in timber harvest followed, extending an earlier downward trend. The historic and...
Resource Type:: Article
Full Text:: area was presumed 186 to be in the mature category (61-150 years old). Note that the range of stand

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