Early stand production of hybrid poplar and white spruce in mixed and monospecific plantations in eastern Maine
Problem Addressed: Potential benefits of increasing intensity of silvicultural practices on Maine's forestlands.
Goal(s)/Objective(s): Compare early growth of pure white spruce, pure hybrid poplar, and white spruce-hybrid poplar mixed-species plantations on a typical reforestation site in eastern Maine.
Key Findings: Three years post planting, hybrid poplar height and ground line diameter growth rates began to diverge among clones; by 6 years, the Populus nigra x Populus maximowiczii clone clearly outperformed three other Populus spp. clones both in pure stands and in mixtures with white spruce. In mixture, yield of white spruce declined as yield of hybrid poplar increased.
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- Nelson, Andrew S.
School of Forest Resources, University of Maine
andrew.s.nelson@maine.edu - Saunders, Michael R.
Department of Forestry and Natural Resources, Purdue University - Wagner, Robert G.
School of Forest Resources, University of Maine - Weiskittel, Aaron R.
School of Forest Resources, University of Maine
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