Index Catalog // ScholarsArchive@OSU

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

Estimating Cavity Tree Abundance Using Nearest Neighbor Imputation Methods for Western Oregon and Washington Forests

Creator:: Temesgen, Hailemariam, Barrett, Tara M., and Latta, Greg
Abstract:: Cavity trees contribute to diverse forest structure and wildlife habitat. For a given stand, the size and density of cavity trees indicate its diversity, complexity, and suitability for wildlife habitat. Size and density of cavity trees vary with stand age, density, and structure. Using Forest Inventory and Analysis (FIA) data...
Resource Type:: Article
Full Text:: Latta Temesgen, H., Barrett, T.M. & Latta, G. 2008. Estimating cavity tree abundance using Nearest

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

Host–parasite distributions under changing climate: Tsuga heterophylla and Arceuthobium tsugense in Alaska

Creator:: Barrett, Tara M., Latta, Greg, Hennon, Paul E., Eskelson, Bianca N.I., and Temesgen, Hailemariam
Abstract:: Dwarf mistletoes (Arceuthobium species) influence many processes within forested ecosystems, but few studies have examined their distribution in relation to climate. An analysis of 1549 forested plots within a 14.5 million ha region of southeast Alaska provided strong indications that climate currently limits hemlock dwarf mistletoe (Arceuthobium tsugense (Rosendahl) G.N....
Resource Type:: Article
Full Text:: changing climate: Tsuga heterophylla and Arceuthobium tsugense in Alaska Tara M. Barrett, Greg Latta, Paul

Host–parasite distributions under changing climate: Tsuga heterophylla and Arceuthobium tsugense in Alaska

Creator:: Barrett, Tara M., Latta, Greg, Hennon, Paul E., Eskelson, Bianca N.I., and Temesgen, Hailemariam
Abstract:: Dwarf mistletoes (Arceuthobium species) influence many processes within forested ecosystems, but few studies have examined their distribution in relation to climate. An analysis of 1549 forested plots within a 14.5 million ha region of southeast Alaska provided strong indications that climate currently limits hemlock dwarf mistletoe (Arceuthobium tsugense (Rosendahl) G.N....
Resource Type:: Article
Full Text:: Service, Pacific Northwest Research Station, 3301 C Street Suite 200, Anchorage, AK 99503, USA. G. Latta

Forest Measurement and Biometrics in Forest Management: Status and Future Needs of the Pacific Northwest USA

Creator:: Temesgen, Hailemariam, Goerndt, Michael E., Johnson, Greg P., Adams, Darius M., and Monserud, Robert A.
Abstract:: Forest measurement and biometrics (FMB) programs have been at the heart of forestry education in North America since its beginnings at the Biltmore Forest School more than 100 years ago. Over the intervening period, the field of forestry has changed in critical ways. There are many forest management and policy...
Resource Type:: Article
Full Text:: R A C T measurements plies mathematics and statistics to efficiently analyze and quantify past

Imputing Mean Annual Change to Estimate Current Forest Attributes

Creator:: Eskelson, Bianca N.I., Barrett, Tara M., and Temesgen, Hailemariam
Abstract:: When a temporal trend in forest conditions is present, standard estimates from paneled forest inventories can be biased. Thus methods that use more recent remote sensing data to improve estimates are desired. Paneled inventory data from national forests in Oregon and Washington, U.S.A., were used to explore three nearest neighbor...
Resource Type:: Article
Full Text:: (Table 2): Natural logarithm of annual precipitation (mm) and mean annual temperature (°C) [Data source

Evaluation of sampling methods to quantify abundance of hardwoods and snags within conifer-dominated riparian zones

Creator:: Marquardt, Theresa, Temesgen, Hailemariam, Anderson, Paul D., and Eskelson, Bianca
Abstract:: • Aims: Six sampling alternatives were examined for their ability to quantify selected attributes of snags and hardwoods in conifer-dominated riparian areas of managed headwater forests in western Oregon. • Methods: Each alternative was simulated 500 times at eight headwater forest locations based on a 0.52-ha square stem map. The...
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Full Text:: S, Chan S, Puettman K, Thompson C (2006) BLM Density Management and Riparian Buffer Study

Evaluation of the spatial linear model, random forest and gradient nearest-neighbour methods for imputing potential productivity and biomass of the Pacific Northwest forests

Creator:: Temesgen, Hailemariam and Hoef, Jay M. Ver
Abstract:: Increasingly, forest management and conservation plans require spatially explicit information within a management or conservation unit. Forest biomass and potential productivity are critical variables for forest planning and assessment in the Pacific Northwest. Their values are often estimated from ground-measured sample data. For unsampled locations, forest analysts and planners lack...
Resource Type:: Article
Full Text:: and linking to climate change and carbon accounting (Latta et al., 2010). Yet, due to the prohibitive

A comparison of small-area estimation techniques to estimate selected stand attributes using LiDAR-derived auxiliary variables

Creator:: Goerndt, Michael E., Monleon, Vicente J., and Temesgen, Hailemariam
Abstract:: One of the challenges often faced in forestry is the estimation of forest attributes for smaller areas of interest within a larger population. Small-area estimation (SAE) is a set of techniques well suited to estimation of forest attributes for small areas in which the existing sample size is small and...
Resource Type:: Article
Full Text:: ). 1189 Can. J. For. Res. 41: 1189–1201 (2011) doi:10.1139/X11-033 Published by NRC Research Press C an

ScholarsArchive@OSU

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

Estimating Cavity Tree Abundance Using Nearest Neighbor Imputation Methods for Western Oregon and Washington Forests

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

Host–parasite distributions under changing climate: Tsuga heterophylla and Arceuthobium tsugense in Alaska

Host–parasite distributions under changing climate: Tsuga heterophylla and Arceuthobium tsugense in Alaska

Forest Measurement and Biometrics in Forest Management: Status and Future Needs of the Pacific Northwest USA

Imputing Mean Annual Change to Estimate Current Forest Attributes

Evaluation of sampling methods to quantify abundance of hardwoods and snags within conifer-dominated riparian zones

Evaluation of the spatial linear model, random forest and gradient nearest-neighbour methods for imputing potential productivity and biomass of the Pacific Northwest forests

A comparison of small-area estimation techniques to estimate selected stand attributes using LiDAR-derived auxiliary variables

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