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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
51

The use of mechanical thinning treatments in management of small stands at the wildland urban interface

Folegatti, Bruno da Silveira. Smidt, Mathew F., January 2004 (has links) (PDF)
Thesis (M.S.)--Auburn University, 2004. / Abstract. Vita. Includes bibliographical references.
52

The effects of simulated thinning treatments on volume and value of 65- to 80- year old stands dominated by noble fir on the Warm Springs Indian Reservation, Oregon /

Stinson, Julie D. January 1996 (has links)
Thesis (M.S.)--Oregon State University, 1997. / Typescript (photocopy). Includes bibliographical references (leaves 80-84). Also available on the World Wide Web.
53

Understory vegetation effects on soil nitrogen and soil carbon in thinned and unthinned Douglas-fir forests /

Geyer, Eric A. January 1998 (has links)
Thesis (M.S.)--Oregon State University, 1999. / Typescript (photocopy). Includes bibliographical references (leaves 67-74). Also available on the World Wide Web.
54

Hungry Bob Harvest Production Study : mechanical thinning for fuel reduction in the Blue Mountains of northeast Oregon /

Coulter, Elizabeth Dodson. January 1999 (has links)
Thesis (M.S.)--Oregon State University, 1999. / Typescript (photocopy). Includes bibliographical references (leaves 91-92). Also available on the World Wide Web.
55

Stand structure development effects on wood quality of Melina (Gmelina arborea roxb.)

Gonzalez Rubio, Hector Larsen, David R. January 2009 (has links)
Title from PDF of title page (University of Missouri--Columbia, viewed on Feb 15, 2010). The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. Dissertation advisor: Dr. David Larsen Vita. Includes bibliographical references.
56

Development of Douglas-fir log quality, product yield, and stand value after repeated thinnings in western Oregon /

Christensen, Glenn A. January 1997 (has links)
Thesis (M.S.)--Oregon State University, 1997. / Typescript (photocopy). Includes bibliographical references (leaves 148-152). Also available on the World Wide Web.
57

Botanical composition and diet quality of beef cattle grazing at three stocking rates following fuels reduction in mixed conifer forests /

Clark, Abe A. January 2007 (has links)
Thesis (M.S.)--Oregon State University, 2007. / Printout. Includes bibliographical references (leaves 38-42). Also available on the World Wide Web.
58

Long-Term Effects of Herbicide and Precommercial Thinning Treatments on Species Composition, Stand Structure, and Net Present Value in Spruce-Fir Stands in Maine: The Austin Pond Study

Daggett, R. Howard January 2003 (has links) (PDF)
No description available.
59

The impact of future markets, management regimes, and mechanized harvesting systems on commercial thinning investments in plantations of loblolly pine

Reisinger, Thomas W. January 1983 (has links)
The controversy regarding commercial thinning continues to intensify as pine plantation acreage in the south increases. This controversy has caused industrial and nonindustrial landowners to re-examine the economic returns from their plantation investments. This study was undertaken to develop investment guidelines for the management of loblolly pine plantations. Computer simulation was used to evaluate the effect on present value that four future price/market scenarios, three management regimes, and three mechanized thinning systems can have on current thinning investments. When the economic returns from thinning are compared with a no-thin management regime, simulation results indicate that long-term investment advantages favor thinning only slightly, regardless of the future price/market scenario assumed. This slight difference suggests that individual forest product companies may find other reasons such as wood flow, tax advantages, and future product requirements of their manufacturing facilities to be overriding factors for engaging in commercial thinning. Generally, short-run cost and production differences between thinning systems are more significant than the long-term investment effects. Consequently, the type of mechanized thinning system employed has a negligible impact on the total investment. / Ph. D.
60

Economic analysis of thinning alternatives in natural stands of yellow-poplar

Brooks, Darrell G. January 1983 (has links)
A computer program was developed which provides the necessary information required by landowners to evaluate thinning alternatives in yellow-poplar stands. The program is written Applesoft BASIC for the APPLE II+ microcomputer with a design which emphasizes flexibility and ease of use. The program consists of two primary segments: growth and yield, and economic evaluation. The growth and yield segment is composed of a stand level growth and yield model which consists primarily of a collection of equations specified by Knoebel (1982). The economic evaluation segment calculates two measures of economic performance for before or after taxes. The performance criteria are the present net worth and internal rate of return. Using the computer program developed in the study, optimum thinning regimes were estimated for existing stands of yellow-poplar under a variety of economic and biological conditions. Given a set of benchmark costs and revenues, optimum thinning regimes were estimated for three sites (80, 100, and 120, base age 50). A sensitivity analysis was conducted in which interest rates, thinning costs, and clearcut stumpage values were varied. The optimum regimes expressed varying degrees of sensitivity to changes in the economic parameters. / M.S.

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