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    Author(s): Arthur C. Hart
    Date: 1961
    Source: Station Paper NE-152. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 1-8
    Publication Series: Science Perspectives (SP)
    Station: Northeastern Research Station
    PDF: View PDF  (998.08 KB)

    Description

    Under certain conditions that we do not yet fully understand, balsam fir has a tendency to form dense thickets that cause stagnation of growth. This condition is common throughout the spruce-fir region, and it presents the landowner with one of his most perplexing management problems. A typical thicket averaging 15 feet tall may contain 5,000 to 10,000 stems per acre (fig. 1). Small areas may have densities up to 30,000 stems per acre.

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    Citation

    Hart, Arthur C. 1961. Thinning balsam fir thickets with soil sterilants. Station Paper NE-152. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 1-8

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