Index Catalog // ScholarsArchive@OSU

Evaluation of individual-tree and disaggregative prediction methods for Douglas-fir stands in western Oregon

Creator:: Ritchie, Martin W. and Hann, David W.
Abstract:: The efficiency of six disaggregative methods and two individual-tree methods was evaluated in terms of their ability to predict 5-year basal area increment for Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) stands in western Oregon. Models were developed for predicting gross stand basal-area increment and individual-tree diameter increment. In addition, models were...
Resource Type:: Article
Full Text:: Douglas-fir stands in western Oregon1 Martin W. Ritchie and David W. Hann Abstract: The efficiency of

Oregon State Forester ; Vol. 26, No. 1 (January 1973)

Creator:: OSU Forestry Alumni Association
Abstract:: Magazine of the OSU Forestry Alumni Association.
Resource Type:: Other
Full Text:: . HALE '25 8 CHARLES W. HALL '26 C. DOUGLAS HOLE '38 ORVAL F. JESS '37 LESLIE D. LLOYD '29

Oregon State Forester ; Vol. 32, No. 1 (January 1979)

Creator:: OSU Forestry Alumni Association
Abstract:: Magazine of the OSU Forestry Alumni Association.
Resource Type:: Other
Full Text:: activities at Peavy Hall. In addition arrangements have been made w ith personnel of the U.S. Forest

Equations for predicting height to crown base for fourteen tree species in southwest Oregon

Creator:: Ritchie, Martin W., Hann, David W., and Oregon State University. Forest Research Laboratory
Abstract:: Equations are presented for predicting height to crown base (or bole ratio) for fourteen species of trees common to the mixed-conifer zone of southwest Oregon. Nonlinear regression was used to fit a weighted logistic function for each species. The independent variables include height, crown competition factor in larger trees, stand...
Resource Type:: Research Paper
Full Text:: SPECIES IN SOUTHWEST OREGON Martin W. Ritchie David W. Hann q5161T17 cr) co 01Vs 11F0F6Z El FORM RE

Nonlinear equations for predicting diameter and squared diameter inside bark at breast height for Douglas-fir

Creator:: Ritchie, Martin W., Hann, David W., and Oregon State University. Forest Research Laboratory
Resource Type:: Technical Report
Full Text:: -fir Martin W. Ritchie David W. Hann FOREn REIEARCH LAB College of Forestry Oregon State University

Equations for predicting the 5-year height growth of six conifer species in southwest Oregon

Creator:: Ritchie, Martin W., Hann, David W., and Oregon State University. Forest Research Laboratory
Abstract:: Equations for predicting individual-tree height growth per 5-year period are presented for Douglas-fir, white fir, grand fir, ponderosa pine, sugar pine, and incense-cedar growing in the mixed-conifer zone of southwest Oregon. The data used to develop the equations came from 3,648 trees sampled from 391 stands in the study area....
Resource Type:: Research Paper
Full Text:: the 5-Year Height Growth of Six Conifer Species in Southwest Oregon Martin W. Ritchie David W. Hann

Thinning ponderosa pine (Pinus ponderosa) stands reduces mortality while maintaining stand productivity

Creator:: Zhang, Jianwei, Ritchie, Martin W., Maguire, Douglas A., and Oliver, William W.
Abstract:: We analyzed 45 years of data collected from three ponderosa pine (Pinus ponderosa Douglas ex P. Lawson & C. Lawson) levels-of-growing-stock installations in Oregon (OR) and northern California (CA), USA, to determine the effect of stand density regimes on stand productivity and mortality. We found that periodic annual increment (PAI)...
Resource Type:: Article
Full Text:: reduces mortality while maintaining stand productivity Jianwei Zhang, Martin W. Ritchie, Douglas A

Equations for predicting basal area increment in Douglas-fir and grand fir

Creator:: Ritchie, Martin W., Hann, David W., and Oregon State University. Forest Research Laboratory
Resource Type:: Technical Report
Full Text:: known. I Equations for Predicting Basal Area Increment in Douglas-fir and Grand Fir Martin W

Contributions of ectomycorrhizal fungal mats to forest soil respiration

Creator:: Phillips, C. L., Kluber, L. A., Martin, J. P., Caldwell, B. A., and Bond, B. J.
Abstract:: Distinct aggregations of fungal hyphae and rhizomorphs, or "mats", formed by some genera of ectomycorrhizal (EcM) fungi are common features of soils in coniferous forests of the Pacific Northwest. We measured in situ respiration rates of Piloderma mats and neighboring non-mat soils in an old-growth Douglas-fir forest in western Oregon...
Resource Type:: Article
Full Text:: , part of the Willamette National Forest, Oregon, USA (44◦13′′25′ N, 122◦15′′30′ W, 484 m above sea level

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

ScholarsArchive@OSU

Evaluation of individual-tree and disaggregative prediction methods for Douglas-fir stands in western Oregon

Oregon State Forester ; Vol. 26, No. 1 (January 1973)

Oregon State Forester ; Vol. 32, No. 1 (January 1979)

Equations for predicting height to crown base for fourteen tree species in southwest Oregon

Nonlinear equations for predicting diameter and squared diameter inside bark at breast height for Douglas-fir

Equations for predicting the 5-year height growth of six conifer species in southwest Oregon

Thinning ponderosa pine (Pinus ponderosa) stands reduces mortality while maintaining stand productivity

Equations for predicting basal area increment in Douglas-fir and grand fir

Contributions of ectomycorrhizal fungal mats to forest soil respiration

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

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