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Effects of stand density reduction on structural development in western Oregon Douglas-fir forests : a reconstruction study /Bailey, John Duff, January 1996 (has links)
Thesis (Ph. D.)--Oregon State University, 1997. / Typescript (photocopy). Includes bibliographical references (leaves 98-109). Also available on the World Wide Web.
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Crop tree growth and quality twenty-five years after precommercial thinning in a northern conifer stand /Phillips, Leah M., January 2002 (has links) (PDF)
Thesis (M.S.) in Forestry--University of Maine, 2002. / Includes vita. Includes bibliographical references (leaves 78-85).
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Developing optimal programs for thinning young-growth Douglas-fir stands /Randall, Robert Matthew. January 1971 (has links)
Thesis (Ph. D.)--Oregon State University, 1971. / Includes bibliographical references (leaves 166-174). Also available on the World Wide Web.
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Self-thinning in five Australian plantation species /Lowther, Peter. January 2004 (has links) (PDF)
Thesis (M.Sc.) - University of Queensland, 2005. / Includes bibliography.
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Effects of Precommercial Thinning on Snowshoe Hares, Small Mammals, and Forest Structure in Northern MaineHomyack, Jessica A. January 2003 (has links) (PDF)
No description available.
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A geometric model of skyline thinning damageOrmerod, David William January 1971 (has links)
In thinning, physical damage to the residual trees may result from abrasion during felling and yarding. The amount of damage is primarily a function of the stand geometry, the thinning prescription, and the felling strategy, under a given extraction system. In terms of controlling the level of damage, there are two interdependent aspects to the problem. One is to prescribe a desirable thinning that is compatible with the extraction system. The other is to efficiently engineer the extraction under the given silvicultural constraints.
For skyline thinning it is assumed that a geometric model of the stand, and of the extraction system, provides a framework for examining potential physical damage, in terms of this interdependence. Based on a three-dimensional model, skyline thinning is simulated, and indices of potential damage are enumerated. For a sample stand of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco), the potential damage is studied as a function of the prescription, and the system parameter that determines the felling directions. Three different selection prescriptions are examined; a Low, a Crown, and a Graded. The synthetic data is discussed in terms of frequency distributions, and as a function of the parameter mentioned. It is demonstrated that the system is very sensitive
to this parameter. While the effect of the different prescribed thinnings might be thought to be intuitively obvious, some enigmatic phenomena are apparent.
It is proposed that such a study is a means of examining both the silvicultural and engineering aspects of the problem of physical damage in the residual stand, for a skyline thinning system. It is hoped that such deliberation will provide a rational framework to determine the effect of this damage upon thinning regimes. / Forestry, Faculty of / Graduate
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A simulation of the comparative costs and benefits of skyline strip thinning /LeDoux, Chris B. January 1983 (has links)
Thesis (Ph. D.)--Oregon State University, 1984. / Typescript (photocopy). Includes bibliographical references (leaves 50-53). Also available on the World Wide Web.
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Thinning response in Alnus rubra and Arbutus menziesii : effects of spacing, light, and moisture /Kim, Sang-kyun. January 1990 (has links)
Thesis (M.S.)--Oregon State University, 1991. / Typescript (photocopy). Includes bibliographical references (leaves 64-69). Also available on the World Wide Web.
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The effects of thinning and nutrient treatments on the growth of ponderosa pineBeasley, Roy Scott, 1942- January 1966 (has links)
No description available.
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A multivariate control solution to the mixed species/diameter class thinning and final rotation problem /Cousar, Paul K. January 1992 (has links)
Thesis (M.S.)--Oregon State University, 1993. / Typescript (photocopy). Includes bibliographical references (leaves 48-49). Also available on the World Wide Web.
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