Dissertation (doctoral)--Uppsala universitet, 1774. / At head of title: I. H. N. Reproduction of original from Kress Library of Business and Economics, Harvard University. Goldsmiths'-Kress no. 11120.0.

Thesis (doctoral)--Åbo akademi, 1792 and 1795. / Reproduction of original from Kress Library of Business and Economics, Harvard University. Goldsmiths'-Kress no. 15144.2-0.

Thesis--University of Washington. / Vita. Another copy has number: Thesis 27746. Bibliography: leaves [292]-300.

Thesis (Ph. D.)--University of Washington, 1986. / Vita. Bibliography: leaves [71]-79.

Thesis (M.S.) University of Missouri-Columbia, 2005. / The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file viewed on (May 18, 2007) Includes bibliographical references.

Thesis (Ph. D.)--University of Washington, 1986. / Vita. Bibliography: leaves [128]-135.

A short history of the electronic data processing development in North America is given. The basic principles of computers and data processing systems are analysed and a brief description of ALWAC III-E and IBM 1620 computers is provided. Sufficient information is given to acquaint professional foresters or research workers in forestry with the basic knowledge required to understand where and how computing can be applied in their work. The major factors that govern how and when to use a computer are: required speed and accuracy, size, repetitiveness, and complexity of the calculation. It is pointed out that the advantages of an electronic computer are: speed, accuracy, versatility, reliability and memory. The disadvantages are: high rental cost, extra cost for transposing data on cards or tape, and complicated program writing. In forestry the main fields of electronic computer applications are: Management Mensuration Utilization Logging engineering Research Examples are presented for each field in the text, typical programs are appended, and sources of further information are noted. It is concluded that in the future the importance of electronic computers will increase in forestry practices; however, it will remain only a tool and cannot replace the forester. / Forestry, Faculty of / Graduate

[No abstract submitted] / Arts, Faculty of / Vancouver School of Economics / Graduate

Logging has proceeded continuously since 1915 in the Nimpkish valley. The cutting has been of the old-growth Douglas fir (Pseudotsuga taxifolia (Poir.) Britt, western red cedar (Thuja plicata Donn.), western hemlock (Tsuga heterophylla (RAF.) Sarg.) and balsam fir (Abies amabilis (Bougl.) Forbes. Many of the areas cut have become restocked naturally with various species of trees which are classified as second-growth. The excess of low-value trees and the slow rate of regeneration are not economically satisfactory. Since 1924 various plantations have been established. A study of the results of this natural regeneration and this artificial regeneration indicates practical methods for future procedure. Additional information comes from experiments that have been completed, and from those that are still in progress. The synthesis of the collected material and the silvicultural discourse form the basis for recommendations for future management of forestry operations in the Nimpkish valley. / Forestry, Faculty of / Graduate

The application of silvicultural systems in the B-19 Foothills, region of Alberta was examined in the light of current problems in management, silviculture, and utilisation. Following a regional description, in which a classification of site is developed, certain silvicultural systems were examined and recommended for the dominant stand types which occur on three major site groups, viz:- 1. Dry Upland 2. Moist Transition 3. Wet Consideration was given in each case to clearcutting, shelterwood and selection systems. Recommendations were based on the information presented in the preceding chapters and that available in those references cited in the bibliography. It has been pointed out in conclusion that there are three main phases in the development of control of the silviculture and management of the region. These are:- 1. The preparation of management plans for sustained yield. 2. The selection of silvicultural systems to, bring silvicultural control into the framework of sustained yield management. 3. The development and application of cultural treatments through research to improve local conditions and to help solve particular regeneration problems. The importance of the hypothesis presented in Chapter III is finally re-stressed with reference to the above mentioned development phases. That is - That there are already available to the practising forest management planner, silvicultural systems which are applicable, with or without further adaptation, to the forest stands of the region and to the sites described. Certain fields of research have been suggested throughout the text and these were summarised in a final recommendation. / Forestry, Faculty of / Graduate