La Régénération préétablie dans les peuplements forestiers naturels au Québec

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Abstract
The type and abundance of advance growth has been evaluated in 421 areas representing the major forest cover types in Quebec. Advance growth has been found to be abundant in mature stands of every cover type, except jack pine, and in all ecological zones. However its composition varied with cover types: balsam fir was the main species of advance growth in fir and mixedwood stands, while black spruce dominated advance growth in black spruce and jack pine stands. Most of the black spruce advance growth was from layer origin, especially in the black spruce ecological zone. Key words: Québec, regeneration.