Remise en production des bétulaies jaunes résineuses dégradées. Étude du succès d'installation de la régénération et des variations abiotiques et physionomiques à l'intérieur du lit de germination

Authors: Gastaldello, Pierre
Advisor: Ruel, Jean-Claude
Abstract: Due to several decades of highgrading practices, it is estimated that 2,3 % of the overall area of the balsam fir – yellow birch eco-climatic domain is now composed of degraded stands. This study tested some scarification patterns to favour the installation of yellow birch seedling in those deteriorated stands. Mineral soil pockets, one and two meters wide have been made by an excavator. Displaced mineral soil and organic debris removed from pockets were pushed aside to form a mound. Results demonstrated positive effects of the scarification technique. An abundant seedling installation and optimum available light conditions have been measured within the pockets. However, poorer soil fertility in the pockets compared to mounds and undisturbed seedbeds could cause a delay in the seedlings growth.
Document Type: Mémoire de maîtrise
Issue Date: 2005
Open Access Date: 11 April 2018
Permalink: http://hdl.handle.net/20.500.11794/18112
Grantor: Université Laval
Collection:Thèses et mémoires

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