Canadian Forest Service Publications
Fertilization and thinning effects on a Douglas-fir ecosystem at Shawnigan Lake: An establishment report. 1975. Crown, M.; Brett, C.P., Editors. Environment Canada, Forestry Service, Pacific Forestry Centre, Victoria, BC. Information Report BC-X-110.
Issued by: Pacific Forestry Centre
Catalog ID: 3979
Availability: PDF (request by e-mail)
Establishment of a multidisciplinary research project, initiated in 1970, to study the effects of thinning and nitrogen fertilization on a 24-year-old Douglas-fir (Pseudotsuga menziesii Mirb., Franco) stand near Shawnigan Lake, B.C., is described. The site is characterized by edaphic factors, climate, vegetation, stand history and growth at the time of treatment. Experimental design, plot layout and treatments are given in detail. Component studies of tree growth, tree physiological conditions, water relations, atmospheric conditions, understory vegetation, soil chemistry, soil fauna, and soil microflora are described. By studying these biological relationships, the project proposes to improve our capability in predicting effects of thinning and fertilization under different site and stand conditions. This publication provides a comprehensive background reference for future progress reports and publications.