Index Catalog // ScholarsArchive@OSU

Tree crown ratio models for multi-species and multi-layered stands of southeastern British Columbia

Creator:: Temesgen, Hailemariam, LeMay, Valerie, and Mitchell, Stephen J.
Abstract:: The ratio of live crown length to tree height (crown ratio; CR) is often used as an important predictor variable for tree level growth equations, particularly for multi-species and multi-layered stands. Also, CR indicates tree vigour and can be an important habitat variable. Measurement of CR for each tree can...
Resource Type:: Article
Full Text:: 2005, VOL. 81, NO. 1 — THE FORESTRY CHRONICLE Hailemariam Temesgen Valerie LeMay Stephen J. Mitchell

Can fuel-reduction treatments really increase forest carbon storage in the western US by reducing future fire emissions?

Creator:: Campbell, John L., Harmon, Mark E., and Mitchell, Stephen R.
Abstract:: It has been suggested that thinning trees and other fuel-reduction practices aimed at reducing the probability of high-severity forest fire are consistent with efforts to keep carbon (C) sequestered in terrestrial pools, and that such practices should therefore be rewarded rather than penalized in C-accounting schemes. By evaluating how fuel...
Resource Type:: Article
Full Text:: emissions? John L Campbell, Mark E Harmon, and Stephen R Mitchell Front Ecol Environ 2011; doi:10.1890

Affinities of the Boletus chromapes group to Royoungia and the description of two new genera, Harrya and Australopilus

Creator:: Halling, Roy E., Nuhn, Mitchell, Osmundson, Todd, Fechner, Nigel, Trappe, James M., Soytong, Kasem, Arora, David, Hibbett, David S., and Binder, Manfred
Abstract:: Harrya is described as a new genus of Boletaceae to accommodate Boletus chromapes, a pink capped bolete with a finely scabrous stipe adorned with pink scabers, a chrome yellow base, and a reddish brown spore deposit. Phylogenetic analyses of large subunit rDNA and translation elongation factor 1α confirm Harrya as...
Resource Type:: Article
Full Text:: of Systematic Botany Nuhn, Mitchell; Clark University, Department of Biology Osmundson, Todd

Forest Fire Impacts on Carbon Uptake, Storage, and Emission: The Role of Burn Severity in the Eastern Cascades, Oregon

Creator:: Meigs, Garrett W., Donato, Daniel C., Campbell, John L., Martin, Jonathan G., and Law, Beverly E.
Abstract:: This study quantifies the short-term effects of low-, moderate-, and high-severity fire on carbon pools and fluxes in the Eastern Cascades of Oregon. We surveyed 64 forest stands across four fires that burned 41,000 ha (35%) of the Metolius Watershed in 2002 and 2003, stratifying the landscape by burn severity...
Resource Type:: Article
Full Text:: : The Role of Burn Severity in the Eastern Cascades, Oregon Garrett W. Meigs,1* Daniel C. Donato,2 John

Observations and assessment of forest carbon dynamics following disturbance in North America

Creator:: Goetz, S. J., Bond-Lamberty, B., Law, B. E., Hicke, J. A., Huang, C., Houghton, R. A., McNulty, S., O'Halloran, T., Harmon, M., Meddens, A. J. H., Pfeifer, E. M., Mildrexler, D., and Kasischke, E. S.
Abstract:: Disturbance processes of various types substantially modify ecosystem carbon dynamics both temporally and spatially, and constitute a fundamental part of larger landscape-level dynamics. Forests typically lose carbon for several years to several decades following severe disturbance, but our understanding of the duration and dynamics of post-disturbance forest carbon fluxes remains...
Resource Type:: Article
Full Text:: North America S. J. Goetz,1 B. Bond-Lamberty,2 B. E. Law,3 J. A. Hicke,4 C. Huang,5 R. A. Houghton,1 S

High diversity and widespread occurrence of mitotic spore mats in ectomycorrhizal Pezizales

Creator:: Healy, R. A., Smith, M. E., Bonito, G. M., Pfister, D. H., Ge, Z-W., Guevara, G. G., Williams, G., Stafford, K., Kumar, L., Lee, T., Hobart, C., Trappe, J., Vilgalys, R., and McLaughlin, D. J.
Abstract:: Fungal mitospores may function as dispersal units and/ or spermatia, and thus play a role in distribution and/or mating of species that produce them. Mitospore production in ectomycorrhizal (EcM) Pezizales is rarely reported, but here we document mitospore production by a high diversity of EcM Pezizales on three continents, in...
Resource Type:: Article
Full Text:: K 3 , Kumar L 1 , Lee T 1 , Hobart C 7 , Trappe J 8 , Vilgalys R 3 , McLaughlin DJ 1 4 1

Carbon balance on federal forest lands of Western Oregon and Washington: The impact of the Northwest Forest Plan

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:: conclusions regarding the impact of management decisions on C balance of PNW forests (e.g., 141 Mitchell et

Applying the dual-isotope conceptual model to interpret physiological trends under uncontrolled conditions

Creator:: Barnard, H. R., Brooks, J. R., and Bond, B. J.
Abstract:: The inter-relationships among δ¹³C and δ¹⁸O in tree ring cellulose and ring width have the potential to illuminate long-term physiological and environmental information in forest stands that have not been monitored. We examine how within-stand competition and environmental gradients affect ring widths and the stable isotopes of cellulose. We utilize...
Resource Type:: Article
Full Text:: , 2012; handling Editor James Ehleringer The inter-relationships among δ13C and δ18O in tree ring

Thinning effects on forest productivity: Consequences of preserving old forests and mitigating impacts of fire and drought

Creator:: Law, Beverly E., Hudiburg, Tara W., and Luyssaert, Sebastiaan
Abstract:: Background: Management strategies have been proposed to minimise the effects of climate change on forest resilience. Aims: We investigated the Pacific Northwest US region forest carbon balance under current practices, and changes that may result from management practices proposed for the region’s 34 million ha of forests to mitigate climate...
Resource Type:: Article
Full Text:: /Sharing). 11 Results: The forests of the region were found highly productive (NPP 163 Tg C year -1

Nutritional Quality of Douglas-fir Wood: Effect of Vertical and Horizontal Position on Nutrient Levels

Creator:: Schowalter, Timothy D. and Morrell, Jeffrey J.
Abstract:: The chemical composition of the boles of 14 Douglas-fir trees growing in the central Willamette Valley of western Oregon was examined to determine whether differences in various chemical component levels might help to explain arthropod or microbial colonization patterns. Levels of nearly all cations as well as N and P...
Resource Type:: Article
Full Text:: 1965, -i- Member of SWST. 1966a, 1966b; Cowling and Merrill 1966; Wood und l,rhr,r Sc,<,n< c, 34( l

ScholarsArchive@OSU

Tree crown ratio models for multi-species and multi-layered stands of southeastern British Columbia

Can fuel-reduction treatments really increase forest carbon storage in the western US by reducing future fire emissions?

Affinities of the Boletus chromapes group to Royoungia and the description of two new genera, Harrya and Australopilus

Forest Fire Impacts on Carbon Uptake, Storage, and Emission: The Role of Burn Severity in the Eastern Cascades, Oregon

Observations and assessment of forest carbon dynamics following disturbance in North America

High diversity and widespread occurrence of mitotic spore mats in ectomycorrhizal Pezizales

Carbon balance on federal forest lands of Western Oregon and Washington: The impact of the Northwest Forest Plan

Applying the dual-isotope conceptual model to interpret physiological trends under uncontrolled conditions

Thinning effects on forest productivity: Consequences of preserving old forests and mitigating impacts of fire and drought

Nutritional Quality of Douglas-fir Wood: Effect of Vertical and Horizontal Position on Nutrient Levels

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