The selection of planting stock is a critical step in the reforestation
planning process. In addition to selecting the proper seed source
and species for the planting site, consideration must be made for the
type of planting stock which will be used. The survival and growth
potential of various classes...
Stocking characteristics and heights attained by tree
seedlings at ages five and seven were measured on 45 study
units, representing five habitat types, established on
clearcuts in the Abies amabilis zone in the Western Cascades
of Oregon. The study units ranged from six to 30 acres in
size, seven to...
The capacity for root growth and concentration of indole-3-acetic acid and abscisic acid in the roots of western hemlock seedlings was investigated. The root regenerating capacity (RRC) was defined as the increase in root length, greater than 5 mm, following a 28-day test period. RRC measurements over a two-year period...
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Reduction of pocket gopher damage to conifer seedlings is important to successful reforestation in many regions of the Pacific
Northwest. The objective of this study was to determine the factors that influence the local distribution of the northern pocket gopher (Thomomys talpoides Richardson) in a forested region of south-central Oregon....
This inventory describes the records of the National Forest Products Association (NFPA) that are deposited with the Forest History Society in Santa Cruz, California. These records, occupying seventy-eight feet of shelving, are heavily concentrated in the period from the 1920s to the 1960s, although a few items date as early...
Although some of the most difficult problems in forest management occur as a result of timber harvest operations, present methodology in harvest planning emphasizes guidelines which rely heavily upon the experience of the individual forest manager for their correct application. This study was undertaken in an effort to develop a...
"Cadastral surveys are performed to create, mark, and define, or to retrace the
boundaries between abutting land owners, and, more particularly, between land of the
Federal Government and private owners or local governments. As referred to here,
cadastral surveys were performed only by the General Land Office during its existence...
A complex and sometimes serious problem facing modern day forest
managers is that of estimating and analyzing potential on-site impacts
which result from forest activities. A major type of adverse impact
is man-Initiated forest erosion. This consequence can be substantially
magnified when forest harvest and road activities are implemented in...
The thesis area is located in the Blue Mountains of northeast Oregon. Pre-Tertiary and Cenozoic rocks, divided on the basis of age and tectonic history, are exposed along the eroded crest of the Blue Mountain anticline. Permian (?) metasedimentary rocks probably correlate with the Elkhorn Ridge Argillite, and consist mainly...
This study traces the evolution of federal legislation to control water pollution in the period between 1935 and 1965. In this legislative history, the function of interest groups, the actions of congressmen and congressional committees, and the role of the President and the Executive Branch are reviewed. The water pollution...