Value Loss from Skidding Wounds in Sugar Maple and Yellow Birch
Losses traceable to 10-year-old wounds on yellow birch and sugar maple were low, only 3.1 and 0.2 percent of potential log value and 0.7 and 0.5 percent of potential lumber value, respectively. Stem wounds were far more serious than root wounds, resulting in all of the loss in log value for both species, all the loss in lumber value for sugar maple, and 91 percent of the loss in lumber value for yellow birch. Predicting high-risk trees by wound characteristics is possible, and if these trees are harvested within 10 years after wounding, losses should be minimal. With reasonable care in using equipment and loads as large as the rubber-tired tractors with integral arches skidding tree lengths, losses can be held within these low limits without serious effect on silvicultural considerations.
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Document Type: Journal Article
Affiliations: Assistant Chief, Forest Disease Res., Forest Serv., Wash., D.C.
Publication date: 01 April 1970