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Field Note—Best Density and Structure for Uneven-Aged Northern Hardwood Management in New England

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Choice of the best residual density (basal area per acre) and structure (diameter distribution) for uneven-aged management of northern hardwoods is a complex decision that depends on the manager's decision rules, product objectives, site conditions, and—perhaps most important—current stand conditions. In contrast to other recommendations on residual density and structure, growth information from a study in New Hampshire shows that a residual basal area of 60–80 ft2/ac coupled with a sawtimber basal area as low as 25–35 ft2/ac (equivalent to a q-ratio of 1.5–2.0) may result in adequate 10 yr board-foot growth responses in previously unmanaged stands on mediocre northern hardwood sites.
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Keywords: Northern hardwoods; growth; stocking; structure

Document Type: Miscellaneous

Affiliations: USDA Forest Service, Northeastern Research Station, P.O. Box 640 Durham, New Hampshire, 03824,

Publication date: 01 March 2003

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