Index Catalog // ScholarsArchive@OSU

Creator:: Garber, Sean M., Temesgen, Hailemariam, Monleon, Vicente J., and Harm, David W.
Abstract:: Subsampling and subsequent imputation of tree heights can improve the predictive performance of stand volume estimation but may also introduce biases. Using coastal Douglas-fir data from southwest Oregon, USA, the predictive performance of several height imputation strategies for estimating stand volume was evaluated. A subsample of 1-15 trees was randomly...
Resource Type:: Article
Full Text:: , Vicente J. Monleon, and David W. Harm Abstract: Subsampling and subsequent imputation of tree heights can

Creator:: Bravo, Felipe, Hann, David W., and Maguire, Douglas A. (Douglas Alan)
Abstract:: Mixed conifer and hardwood stands in southwestern Oregon were studied to explore the hypothesis that competition effects on individual-tree growth and survival will differ according to the species comprising the competition measure. Likewise, it was hypothesized that competition measures should extrapolate best if crown-based surrogates are given preference over diameter-based...
Resource Type:: Article
Full Text:: diameter growth and survival rates of Douglas-fir trees in southwestern Oregon1 Felipe Bravo, David W

Creator:: Woodruff, David R., Bond, Barbara J., Ritchie, Gary A., and Scott, William
Abstract:: The objectives of this study were (i) to provide further evidence of a positive correlation of stand density with early growth of coastal Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco var. menziesii); (ii) to determine when after planting the positive growth response occurs and how long it lasts; and (iii) to use...
Resource Type:: Article
Full Text:: Douglas-fir trees David R. Woodruff, Barbara J. Bond, Gary A. Ritchie, and William Scott Abstract: The

Creator:: Tappeiner, John C., Zasada, John C., Huffman, David W. (William), 1962-, and Ganio, Lisa M.
Abstract:: Annual sprouting of aerial stems and ramets enables populations of salmonberry (Rubus spectabilis Pursh), salal (Gaultheria shallon Pursh), and probably other forest shrubs to maintain dense covers (>20 000 stems/ha). We studied annual stem production of salmonberry on cut (all stems cut within 15 cm of the ground) and uncut...
Resource Type:: Article
Full Text:: production: the maintenance of shrub cover in forest stands1 John C. Tappeiner, II, John C. Zasada, David W

Creator:: Oregon State University. Forest Research Laboratory and Hermann, R. K.
Resource Type:: Technical Report
Full Text:: naturalist Archibald Menzies (1754-1842) on the shores of Nootka Sound on the west coast of Vancouver Island

Creator:: Walter, Scott T. and Maguire, Chris C.
Abstract:: This study assessed growth, condition, and mortality of residual trees one decade after harvest across three silvicultural treatments in thirty 85- to 125-year-old Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) stands in the Oregon Coast Range foothills. Group-selection cuts had 33% of the entire stand volume extracted as patches approximately 0.2–0.8 ha...
Resource Type:: Article
Full Text:: résiduels dix ans après la récolte dans 30 peuplements de douglas de Menzies (Pseudotsuga menziesii (Mirb

Creator:: Oregon State University. Forest Research Laboratory, Gholz, Henry L., Grier, C. C., Campbell, A. G., and Brown, A. T.
Abstract:: Reliable estimates of plant biomass and leaf surface area are essential for studying primary production, nutrient cycling, hydrology, wildlife management, and fire. This paper presents equations that can be used to make such estimates for most plant species-trees, shrubs, and herbs-dominant in western and central Oregon.' We also document the...
Resource Type:: Technical Report
Full Text:: . ePersonal communication, David McNabb, Department of Forest (Personal communication, Stephen Kessel

Creator:: Maguire, Chris C., Chambers, Carol L., and Oregon State University. Forest Research Laboratory
Abstract:: The College of Forestry Integrated Research Project (CFIRP) is an on-going experiment in the eastern Coast Range foothills of western Oregon. Started in 1989, a team of scientists, resource managers, and students at Oregon State University designed and implemented silvicultural alternatives to clearcutting. These silvicultural practices aimed to create and...
Resource Type:: Technical Report

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