Silvicultural Influence on Heartwood Discoloration in Sugar Maple
The impacts of diameter limit and selection system cutting on the extent of heartwood discoloration in sugar maple were found to be similar for trees of similar sizes. Heartwood discoloration is thought to be triggered by injury to the stem. The extent of discoloration is more likely due to damage to the residual stand and the frequency of disturbance than it is to the choice of diameter limit versus selection harvests. In either system, it is unlikely that heartwood discoloration can be eliminated from the stand. The extent of discoloration is heavily dependent on tree size, probably due to the greater likelihood of injury occurring sometime in the life of older trees. The economic impact of heartwood discoloration is greater in stands harvested under the selection system simply due to the fact that larger trees were maintained in the stand for longer periods of time. North. J. Appl. For. 9(1):27-29.
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Document Type: Journal Article
Affiliations: School of Forestry and Wood Products, Michigan Technological University, Houghton, MI 49931-1295
Publication date: 1992-03-01
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- Each regional journal of applied forestry focuses on research, practice, and techniques targeted to foresters and allied professionals in specific regions of the United States and Canada. The Northern Journal of Applied Forestry covers northeastern, midwestern, and boreal forests in the United States and Canada.
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