Index Catalog // ScholarsArchive@OSU

Response of young Douglas-fir to 16 years of intensive thinning

Creator:: Tappeiner, J. C. (John C.), Bell, John F., Brodie, J. Douglas (John Douglas), 1938-, and Oregon State University. Forest Research Laboratory
Abstract:: A 20-year-old Douglas-fir [Pseudotsuga menziesii (Mirb.) Franco] stand in the Oregon Coast Range was thinned from about 1,700 to about 350 trees/ac. Subsequent thinnings, under eight different regimes, occurred at ages 23, 27, 30, and 32. Average net periodic cubic-volume growth was strongly influenced by thinning regime, varying from about...
Resource Type:: Technical Report
Full Text:: INTENSIVE THINNING. Forest Research Laboratory, Oregon State University, Corvallis. Research Bulletin 38. 17

Context matters : A multi-scale assessment of riparian tree response to upslope density reduction

Creator:: Ruzicka, Kenneth J., 1982-
Abstract:: Forest management is rapidly undergoing a transformation from a discipline based on efficient commodity production to one for multiple uses, especially on federally managed land in the United States. This new management paradigm has challenged silviculturists to develop and adapt forest management techniques that can deal with increased demands. Using...
Resource Type:: Dissertation
Full Text:: federal lands management. Keywords: forest thinning, western Oregon, Bureau of Land Management, Forest

Overstory density and disturbance impacts on the resilience of coniferous forests of western Oregon

Creator:: Neill, Andrew R.
Abstract:: A trait based approach was used to assess impacts of overstory density and thinning on understory vegetation components related to wildlife habitat. The relationship between overstory basal area and understory vegetation for species grouped by traits, such as production of flowers, fleshy-fruit and palatable leaves, was characterized in thinned and...
Resource Type:: Masters Thesis
Full Text:: ). The DMS employed variable density thinning treatments at 7 study sites across western Oregon to

Patterns in understory vegetation communities across canopy gaps in young, Douglas-fir forests of western Oregon

Creator:: Fahey, Robert T.
Abstract:: Canopy gap formation is a major factor contributing to maintenance of overstory species diversity and stand structure in forests and may be integral to development of understory shrub and herb layers as well. Acknowledgement of gap formation as a fundamental feature of natural forests has led to consideration of gaps...
Resource Type:: Masters Thesis
Full Text:: thinning regime on many components of forest stands in western Oregon (Cissel 2006). The DMS focuses

Young stand thinning in Western Oregon : cost comparison of harvesting alternatives and comparison of time study techniques

Creator:: Hossain, Mohammad Mozaffar
Abstract:: Harvesting costs were determined for commercial thinning of young stands to achieve vegetation and wildlife objectives. This included replicated comparisons of thinning treatments. Treatments were defined based on residual tree stocking after thinning. Study procedures were developed and evaluated to improve statistical relevance. Multiple linear regression models were used to...
Resource Type:: Dissertation

Growth of western hemlock stands after precommercial thinning

Creator:: Dilworth, J. R. (John Richard), 1914- and Oregon State University. Forest Research Laboratory
Abstract:: Young western hemlock stands in the Coast Range of Oregon will contribute to the commercial timber supply of the region in the future, the extent of the contribution depending on environmental and cultural factors. The relative diameter and volume growth of crop-trees in the stands will be increased substantially by...
Resource Type:: Technical Report
Full Text:: . Growth of western hemlock stands after precommercial thinning. Forest Research Laboratory, Oregon State

Interacting effects of stand density, site factors, and nutrients on productivity and productive efficiency of Douglas-fir plantations in the Oregon Cascades

Creator:: Velazquez-Martinez, Alejandro
Abstract:: The objectives of this research were to study: a) the effect of thinning and treatments consisting of pruning and multinutrient fertilization on aboveground biolnass increment, growth efficiency (GE), and foliar nutrients; b) the influence of topoedaphic variables (soil nutrients, slope, aspect, and rock content) and foliar nutrients on both leaf...
Resource Type:: Dissertation

Effects of stand density reduction on structural development in western Oregon Douglas-fir forests : a reconstruction study

Creator:: Bailey, John Duff, 1961-
Abstract:: This research examined thinning effects on stand structure and species composition in 50- to 120-year-old Douglas-fir forests. Thirty-two paired stands (thinned and unthinned) were measured throughout western Oregon, as were 20 old-growth stands for comparison. Thinnings occurred 10 to 24 years previously and ranged in intensity from 8 to 60%...
Resource Type:: Dissertation

Skyline thinning a western hemlock-Sitka spruce stand : harvesting costs and stand damage

Creator:: Kellogg, L. D. (Loren D.), Olsen, Eldon D., Hargrave, Michael A., and Oregon State University. Forest Research Laboratory
Resource Type:: Technical Report
Full Text:: commercial thinning in a 30-year-old Sitka spruce-western hemlock forest. USDA Forest Service, Pacific

Skyline thinning production and costs : experience from the Willamette Young Stand Project

Creator:: Kellogg, L. D. (Loren D.), Miller, Mark E., Olsen, Eldon D., and Oregon State University. Forest Research Laboratory
Abstract:: Production rates and costs for skyline harvesting were examined over a range of residual thinning intensities, operational methods, and sites. The sites included three stands of 40- to 50-yr-old Douglas-fir on the Willamette National Forest in the Cascade Mountains of Oregon. Three silvicultural treatments were studied at two sites, and...
Resource Type:: Technical Report
Full Text:: the western Cascade Mountains of Oregon, on the Willamette National Forest. The study areas involved

ScholarsArchive@OSU

Response of young Douglas-fir to 16 years of intensive thinning

Context matters : A multi-scale assessment of riparian tree response to upslope density reduction

Overstory density and disturbance impacts on the resilience of coniferous forests of western Oregon

Patterns in understory vegetation communities across canopy gaps in young, Douglas-fir forests of western Oregon

Young stand thinning in Western Oregon : cost comparison of harvesting alternatives and comparison of time study techniques

Growth of western hemlock stands after precommercial thinning

Interacting effects of stand density, site factors, and nutrients on productivity and productive efficiency of Douglas-fir plantations in the Oregon Cascades

Effects of stand density reduction on structural development in western Oregon Douglas-fir forests : a reconstruction study

Skyline thinning a western hemlock-Sitka spruce stand : harvesting costs and stand damage

Skyline thinning production and costs : experience from the Willamette Young Stand Project

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