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Article: Effects of nitrogen supply and wood species on Tsuga canadensis and Betula alleghaniensis seedling growth on decaying wood.
- Article from:
- Canadian Journal of Forest Research
- Article date:
- November 1, 2006
- Author:
CopyrightCOPYRIGHT 2006 NRC Research Press. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Abstract: Eastern hemlock (Tsuga canadensis (L.) Carriere) and yellow birch (Betula alleghaniensis Britt.) in primaryMichigan forests depend on decaying wood for seedling-establishment sites, but seedling densities vary across wood species (hemlock, yellow birch, and sugar maple (Acer saccharum Marsh.)). We collected seedlings and wood from a natural field experiment and conducted a companion greenhouse experiment to determine whether seedling mass and nitrogen (N) content varied with wood species and whether they were related to wood inorganic N supply. Yellow birch seedlings were largest on hemlock wood in the field (P = 0.003) and greenhouse (but P > 0.05), while ...