Ecosystem-based forest management : The role of scientific research into natural disturbance regimes in British Columbia, Canada

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  • Mori Akira S.
    School of Resource and Environmental Management, Faculty of Applied Science, Simon Fraser University

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  • 生態系を重視した森林管理 : カナダ・ブリティッシュコロンビア州における自然撹乱研究の果たす役割
  • セイタイケイ オ ジュウシシタ シンリン カンリ カナダ ブリティッシュ コロンビアシュウ ニ オケル シゼン カクラン ケンキュウ ノ ハタス ヤクワリ

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Abstract

Recently, management and conservation have received much attention; the focus has been, mainly, on ecosystem and landscape functions and dynamics. Forest ecosystems are a major component of many landscapes; thus, forest management geared to maintaining ecological integrity is very important for conserving diversity at the gene, species, population, and community levels within the forest ecosystem, and also for conserving the regional landscape within which the forest ecosystem exists. This approach is called ecosystem-based management. In British Columbia, Canada, a variety of forested ecosystems occur, including forests dominated by infrequent large-scale fires, dry open forests maintained by frequent low-intensity fires, and coastal temperate old-growth rain forests characterized by small-scale gaps. That is, the predominate disturbance regime differs among regions within the province. To prevent ecosystems from deviating from their natural range of variability as a result of management, which undervalues the dynamic aspects of ecosystems, and also to restore the integrity of forest ecosystems, which already deviate from their natural range of variability, scientific research on natural disturbance regimes is becoming much more important so that ecosystem-based forest management in each region within the province may be achieved. At present, forest managers in British Columbia recognize the importance of the dynamic aspects and diversity of forest landscapes, factors that have been revealed through scientific research, and they have implemented adaptive management, improving management strategies through "learning by doing". As shown here, the integration of new knowledge gained from research into actual management strategies is very important to sustainable forest management.

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