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Creator:: Hicks, Thomas Harney
Abstract:: It is the purpose of this paper to explore the possible application of this relatively new method to second-growth Douglas-fir stands.
Resource Type:: Capstone Project

Creator:: Campbell, Lewis
Abstract:: An increase in frequency and severity of hot, dry summers has been associated with a dramatic shift in the coniferous forests of western Oregon’s valleys, especially on the privately-owned properties along the low-elevation edges of these valleys. Various conifer species, including Douglas-fir (Pseudotsuga menziesii), are declining in these forests, leaving...
Resource Type:: Capstone Project
Full Text:: study in southwestern Oregon found evidence that thinning Douglas-fir stands increases their drought

Creator:: Bradley, Robert F.
Abstract:: Two studies were undertaken in search of a method or methods which might improve the survival of planted Douglas-fir seedlings on severe sites. The first, or preliminary study involved the planting of 2-0 Douglas-fir seedlings on southerly aspects, using nine techniques, including a control. The second, or main study involving...
Resource Type:: Masters Thesis

Creator:: Burrows, James O.
Abstract:: This paper describes a study done on swinging and processing whole tree, tree length and log length pieces in a smallwood Douglas-fir thinning. Two machines were evaluated, a 70 horsepower rubber tired skidder and a hydraulic loader mounted on a 6 x 4 live tandem truck. The study took place...
Resource Type:: Capstone Project

Creator:: Sedlak, Jerome Peter
Abstract:: The comercial thinning of second-growth stands in the Pacific Northwest is becoming increasingly important for satisfying the demand for timber. Cable logging will require the rigging of smaller intermediate support trees rather than those utilized on old-growth timber sales. This paper reports on the results of a study designed to...
Resource Type:: Capstone Project

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