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    Author(s): William H. McWilliams; Seth P. Cassell; Carol L. AlerichBrett J. ButlerMichael L. HoppusStephen B. HorsleyAndrew J. ListerTonya W. ListerRandall S. MorinCharles H. PerryJames A. WestfallEric H. WhartonChristopher W. Woodall
    Date: 2007
    Source: Resour. Bull. NRS-20. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 86 p.
    Publication Series: Resource Bulletin (RB)
    Station: Northern Research Station
    PDF: View PDF  (7.32 MB)

    Description

    Pennsylvania's forest-land base is stable, covering 16.6 million acres or 58 percent of the land area. Sawtimber volume totals 88.9 billion board feet, an average of about 5,000 board feet per acre. Currently, only half of the forest land that should have advance tree seedling and sapling regeneration is adequately stocked with high-canopy species, and only one-third has adequate regeneration for commercially desirable timber species. Several exotic diseases and insects threaten the health of Pennsylvania's forests. Stressors such as drought, acidic deposition, and ground-level ozone pollution are adversely affecting the State's forests.

    Publication Notes

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    McWilliams, William H.; Cassell, Seth P.; Alerich, Carol L.; Butler, Brett J.; Hoppus, Michael L.; Horsley, Stephen B.; Lister, Andrew J.; Lister, Tonya W.; Morin, Randall S.; Perry, Charles H.; Westfall, James A.; Wharton, Eric H.; Woodall, Christopher W. 2007. Pennsylvania''s Forest 2004. Resour. Bull. NRS-20. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 86 p.

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    Keywords

    forest inventory, forest health, sustainability, tree regeneration

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https://www.fs.usda.gov/treesearch/pubs/12990