The purpose of this thesis was to develop a suitable
multiple regression equation for making estimates of diameter
inside bark at various heights up the bole in
Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco)tree.
Data on 237 and 302 trees from Black Rock Forest Management
Research Area, Polk County, Oregon, and scattered...
There are approximately 4,000,000 acres of cut-over and burned-over land in western Washington and Oregon which are either non-stocked or unsatisfactorily stocked with young forest growth. This brings about a great need for a quick and efficient method of land examination from which to plan reforestation measures and make up...
One of the most important challenges facing foresters is the
development of a raw material measurement system designed to give
a complete inventory of log volume and to assist in planning the complete
management of log production. This paper introduces a concept
of production analysis in terms of solid fiber...
The objectives of this study were to ascertain the relative precision and accuracy of certain estimators on several forest populations and to determine if relative performance could be predicted from knowledge of population characteristics. Performance was tested on three populations of trees drawn from stands in northern Ontario. The first...
Many centers of population in the Pacific Northwest are dependent
upon employment in the forest based industries. Mary of these
timber dependent communities look to the public forests for their raw
wood requirements. In some localities the installed capacity has outstripped
the local wood supply. This necessitates reaching into other...
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...
This report deals with forestry in Korea in its various aspects and what has been done about forestry problems in Korea.
The ratio of forest land to total area of country is so high
that it is sometimes compared to Finland's, but the similarity with Finland stops there.
The adverse...
Forest crop improvement through the application of genetic principles
has been recognized as an important factor in forest management.
The use of hybridization and selective breeding in forest tree
improvement points to the urgency of maintaining "pollen banks" of
superior trees.
The objective of this study was to determine the...