Index Catalog // ScholarsArchive@OSU

Predictive mapping of forest composition and structure with direct gradient analysis and nearest-neighbor imputation in coastal Oregon, U.S.A.

Creator:: Ohmann, Janet L. and Gregory, Matthew J.
Abstract:: Spatially explicit information on the species composition and structure of forest vegetation is needed at broad spatial scales for natural resource policy analysis and ecological research. We present a method for predictive vegetation mapping that applies direct gradient analysis and nearest-neighbor imputation to ascribe detailed ground attributes of vegetation to...
Resource Type:: Article
Full Text:: . Gregory Abstract: Spatially explicit information on the species composition and structure of forest

Mapping and imputing potential productivity of Pacific Northwest forests using climate variables

Creator:: Latta, Gregory, Temesgen, Hailemariam, and Barrett, Tara M.
Abstract:: Regional estimation of potential forest productivity is important to diverse applications, including biofuels supply, carbon sequestration, and projections of forest growth. Using PRISM (Parameter-elevation Regressions on Independent Slopes Model) climate and productivity data measured on a grid of 3356 Forest Inventory and Analysis plots in Oregon and Washington, we evaluated...
Resource Type:: Article
Full Text:: Pacific Northwest forests using climate variables Gregory Latta, Hailemariam Temesgen, and Tara M

An econometric analysis of output supply and input demand in the Canadian softwood lumber industry

Creator:: Latta, Gregory S. and Adams, Darius M.
Abstract:: Few studies have examined the own-price elasticity of Canadian softwood lumber supply or output-adjusted factor demand elasticities over the past two decades, despite the utility of these measures in understanding producer response to tariffs, to market shifts (such as the decline in U.S. public harvest), and to changes in domestic...
Resource Type:: Article
Full Text:: in the Canadian softwood lumber industry Gregory S. Latta and Darius M. Adams Abstract: Few studies

Control process for smaller forest products companies

Creator:: Doerr, Don R., Daley, P. Martin, and Byrne, Gregory G.
Abstract:: Internal controls have often been thought of as specific activities that are performed to ensure accounting transactions have been recorded properly and to ensure security over assets. This definition was supplemented in a previous monograph on internal controls, "Accounting Controls for a Forest Products Firm," published in January 1981 ....
Resource Type:: Technical Report
Full Text:: Number 39 December 1 993 Don R. Doerr P. Martin Daley Gregory G. Byrne Don R. Doerr is the

Kalapuya brunnea gen. & sp. nov. and its relationship to the other sequestrate genera in Morchellaceae

Creator:: Trappe, Matthew J., Trappe, James M., and Bonito, Gregory M.
Abstract:: Kalapuya is described as a new, monotypic truffle genus in the Morchellaceae known only from the Pacific northwestern United States. Its relationship to other hypogeous genera within Morchellaceae is explored by phylogenetic analysis of the ribosomal LSU and EF1α protein coding region. The type species, K. brunnea, occurs in Douglas-fir...
Resource Type:: Article
Full Text:: , Corvallis, Oregon, 5 97331-5752, U.S.A. 6 Gregory M. Bonito 7 Department of Biology, Duke University

Crown profile equations for stand-grown western hemlock trees in northwestern Oregon

Creator:: Marshall, David D., Johnson, Gregory P., and Hann, David W.
Abstract:: Crown profile equations were developed for stand-grown western hemlock (Tsuga heterophylla (Raf.) Sarg.) in northwest Oregon. The profile model uses a segmented approach, dividing the crown into an upper and lower portion at the point of the largest crown width (LCW). The model explains about 86% of the variation in...
Resource Type:: Article
Full Text:: northwestern Oregon David D. Marshall, Gregory P. Johnson, and David W. Hann Abstract: Crown profile

Private timber harvest potential in Eastern Oregon

Creator:: Adams, Darius Mainard, 1944-, Latta, Gregory S., and Oregon State University. Forest Research Laboratory
Abstract:: Growing stock inventory on industrial and nonindustrial private forest (NIPF) lands in eastern Oregon has declined over the past 20 yr, as harvesting and mortality losses to insects and disease have outpaced growth. Over the same time period, harvest rates on private lands have varied, with no distinct trend to...
Resource Type:: Technical Report
Full Text:: community, and the general public. THE AUTHORS Darius M Adams is a professor and Gregory S Latta is a

Analysis of potential impacts of climate change on forests of the United States Pacific Northwest

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:: States Pacific Northwest Gregory Latta a,*, Hailemariam Temesgen a, Darius Adams a, Tara Barrett b

Genetic selection for cold hardiness in coastal Douglas-fir seedlings and saplings

Creator:: O'Neill, Gregory Arthur, 1961-, Aitken, Sally N., and Adams, W. Thomas
Abstract:: Genetic control of cold hardiness in two-year-old seedlings was compared with that in 7-year-old saplings of 40 open-pollinated families in each of two breeding populations (Coast and Cascade) of coastal Douglas-fir (Pseudotsuga menziesii var. menziesii (Mirb.) Franco) from western Oregon. In addition, the efficacy of bud phenology traits as predictors...
Resource Type:: Article
Full Text:: -fir seedlings and saplings1 Gregory A. O’Neill, Sally N. Aitken, and W. Thomas Adams Abstract

Tarif tables for mountain hemlock developed from an equation of total stem cubic-foot volume

Creator:: Bell, John F., Marshall, David D., Johnson, Gregory P., and Oregon State University. Forest Research Laboratory
Abstract:: Tarif access tables were developed for mountain hemlock [Tsuga mertensiana (Bong.) Carr.] on the Deschutes National Forest in the Central Oregon Cascade Mountains from an equation for cubic-foot volume including top and stump (CVTS). These tables provide access to the comprehensive tree-volume tarif system.
Resource Type:: Technical Report
Full Text:: University in Corvallis. Gregory P. Johnson is a research analyst for International Paper Company in Lebanon

ScholarsArchive@OSU

Predictive mapping of forest composition and structure with direct gradient analysis and nearest-neighbor imputation in coastal Oregon, U.S.A.

Mapping and imputing potential productivity of Pacific Northwest forests using climate variables

An econometric analysis of output supply and input demand in the Canadian softwood lumber industry

Control process for smaller forest products companies

Kalapuya brunnea gen. & sp. nov. and its relationship to the other sequestrate genera in Morchellaceae

Crown profile equations for stand-grown western hemlock trees in northwestern Oregon

Private timber harvest potential in Eastern Oregon

Analysis of potential impacts of climate change on forests of the United States Pacific Northwest

Genetic selection for cold hardiness in coastal Douglas-fir seedlings and saplings

Tarif tables for mountain hemlock developed from an equation of total stem cubic-foot volume

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