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Alan Mitchell
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Ken Mitchell
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Fertilization and Thinning Effects on a Douglas-fir Ecosystem at Shawnigan Lake
The overall objective of the Shawnigan Lake Project (SLP), which was initiated in 1970, is to study the mechanisms of response to thinning and fertilization. The SLP study is composed of two components: a) the main experiment, and b) subsidiary studies. The main experiment, established in 1971--1972 (36 plots), investigated the effects of thinning and fertilization, and consisted of three levels of thinning and five levels of fertilization, including controls. This report focuses on the main experiment and the 32-year growth response for selected stand attributes. Report sections cover the experiment's study area and experimental design; database description; analysis methods outline; study results; and conclusions based on the experiment and results.--Includes text from document.
Acclimation of Natural and Planted Amabilis Fir to Clearcut and Stand Edge Microclimates on a Coastal Montane Reforestation Site
Describes a field study whose objective was to compare the physiological and morphological performance of natural (advance) and planted amabilis fir (Abies amabilis (Dougl.)) regeneration in response to a transition in microclimate from the understory of an old-growth montane forest into the stand edge and also into an adjoining clearcut. The study site, located on eastern Vancouver Island, was clear-cut in 1989 and fall-planted with yellow cedar (Chamaecyparis nootkatensis) in 1991. Amabilis fir nursery stock was planted at the site in April 1993. A climate station installed at each of three 75-by-5-metre plots monitored various environmental parameters such as air temperature, relative humidity, and photosynthetically active radiation. Other measurements made at the site included seedling photosynthesis, transpiration, xylem water potential, foliar nitrogen/phosphorus/potassium, leaf area, and seedling height.
Frontiers of Forest Biology
Discover new approaches to promote a viable forest industry while protecting non-timber values! Frontiers of Forest Biology: Proceedings of the 1998 Joint Meeting of the North American Forest Biology Workshop and the Western Forest Genetics Association gives you significant new insights on current initiatives in forest biology. Because the field is changing rapidly, you need to keep aware of current trends, as the emphasis in forest research shifts from productivity-based goals to sustainable development of forest resources. In this volume, you will find a comprehensive summary of the state of the art of forest science in North America. Whether your focus is on genetics or on the environment...
Annual
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Outplanting Performance of Western Redcedar, Yellow-cedar and Douglas-fir in Montane Alternative Silvicultural Systems (MASS)
The Montane Alternative Silvicultural Systems (MASS) project was established in 1993 on eastern Vancouver Island to test alternative silvicultural approaches for regeneration that retain different patterns and densities of overstorey trees. In 1994, western redcedar, yellow-cedar and Douglas-fir container stock was planted at the MASS site to compare outplanting performance in shelterwood (high-density dispersed retention), patch cut (aggregated retention), green tree (low-density dispersed retention) and conventional clearcut silvicultural systems. This report presents the growth results and responses to silvicultural systems.--Includes text from document.
