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In the past decade, there has been much debate over the environmental impact of forestry. People are justifiably concerned about what is happening to the local and global forest environments, but they are also confused by the polarized rhetoric that has characterized both sides of the debate. In Balancing Act, Hamish Kimmins calls for a balanced, more objective approach to forestry issues in order to bridge the gap between the most extreme opponents in the debate. He suggests that we need to begin with a common understanding of what forestry is about and how forest ecosystems work. He outlines the scientific and ecological aspects of the major environmental issues facing British Columbia and the world today, arguing that we need to disentangle the scientific from the value-based social aspects of these questions. He also contends that much of the current debate about forests and their management ignores the time dimension of ecosystems, and he calls for a more dynamic view of current environmental issues in forestry -- one that accounts for change. The first few chapters provide an outline of the basic principles of forestry and ecology, and subsequent chapters discuss the major environmental issues facing forestry in the 1990s. These include clearcutting, slashburning, management chemicals, old growth, biological diversity, 'new forestry, ' climate change, acid rain, the comparison between temperate and tropical forestry, and long-term decisions in forestry. Balancing Act is essential reading for those who are searching for an objective, accurate, and readable evaluation of the issues at the heart of the forestry/environment debate. By emphasizing that forests are not static but change over time, Kimmins adds an important, often ignored, dimension to the discussion. Only by understanding all the intricacies of the ecosystems can we learn to manage our forests in a sustainable fashion.
Explores the factors that influence the utility of manual brushing, including the response of target species to manual treatment, the growth response of the crop trees, damage to the crop trees and administrative constraints.
Summarizes information on the effectiveness of several brushing treatments used for vegetation management in British Columbia.
Explores the relationships between forest management activities and timber quality. Sessions were organized to explore models and simulation methodologies that contribute to an understanding of tree development over time and the ways that management and harvesting activities can influence the quality of timber products recovered from those trees. Five keynote addresses, 29 plenary presentations, and 16 poster presentations covered the full breadth of forest growth and timber quality issues related to forest management. These proceedings comprise 19 papers based on presentations and posters, plus 28 abstracts for presentations. Also includes abstracts and slides from the presentations prepared by three keynote speakers. Illustrations.
This land management handbook presents a design protocol that defines minimum standards for an objective, low intensity monitoring system called PROBE. PROBE's purpose is to provide a monitoring framework for use in a wide array of vegetation complexes, ecosystems, and operational vegetation management treatments. The framework standardizes installation location, response measurements and statistical analyses. This method satisfies the basic objective of most operational brushing evaluations, which is to determine the effects of vegetation management treatments on the survival and growth of crop trees, and on the abundance of target non-crop species. The condition of wildlife habitat can be monitored within the PROBE framework and site preparation treatments can also be monitored using PROBE.
Describes a research trial established in 1986 in southern interior British Columbia to study the effectiveness of glyphosate applied at three and at six litres/hectare, and of manual cutting, to release naturally regenerated lodgepole pine seedlings and suppress dry alder complex. Pine seedlings and two target species, Sitka alder and fireweed, were assessed for the first three years and again in the ninth year following treatment. Measurements made on the seedlings included height, current-year height increment, and stem diameter at root collar. Target vegetation was assessed for species-specific percent cover and the height of one average target specimen per woody species was also measured.
The Forest Practices Code guidebooks help forest resource managers plan, prescribe and implement sound forest practices that comply with the Forest Practices Code. This guidebook is designed to be a "fine filter" approach to addressing habitat requirements of critical wildlife, in addition to the "coarse filter" approach provided by the Biodiversity Guidebook and the Riparian Management Area Guidebook.
Identification and review of research directions in forest management to advance the practice of forest vegetation management in North America. The review describes both applied and fundamental research needs.
Forest management.