UBC Undergraduate Research

How silvicultural systems and management methods guide forest regeneration using coastal Douglas-fir as an example Cai, Qinyu


Forest regeneration needs to be applied under the direction of silvicultural prescriptions and the context of silvicultural systems. Management interventions should be implemented if the current or expected stand conditions are unfavourable for target species to achieve management objectives. To illustrate these concepts, this paper uses coastal Douglas-fir (Pseudotsuga menziesii var. menziesii) as the target regeneration species, with the objectives of maximizing stand production and wood quality. Firstly, the ideal stand conditions for coastal Douglas-fir growth are discussed in this paper. Then functions of silvicultural systems and management methods are introduced. During the regeneration prescription process, the silvicultural system should firstly be determined. The stand should be site-prepared before regeneration if microsite conditions are unfavourable to coastal Douglas-fir growth. Different strategies are applied based on natural or artificial regeneration method. After sowing, or planting, animal damage and vegetation competition should be reduced to provide free growth condition to seedlings.

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