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    Author(s): David A. Marquis
    Date: 2019
    Source: In: Stout, Susan L., ed. SILVAH: 50 years of science-management cooperation. Proceedings of the Allegheny Society of American Foresters training session; 2017 Sept. 20-22; Clarion, PA. Gen. Tech. Rep. NRS-P-186. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 3-7.
    Publication Series: Paper (invited, offered, keynote)
    Station: Northern Research Station
    PDF: Download Publication  (89.0 KB)

    Description

    My task today is to tell you a little about the early years of SILVAH and some of the events that led to its development. The computer program we call SILVAH was preceded by many years of research into four main factors that affect the outcomes of silvicultural treatments in Allegheny hardwood forests. 1) The role of well-developed advance reproduction for ensuring regeneration success. 2) The impacts of protracted browsing by white-tailed deer. 3) Effects of interfering plants such as ferns and understory beech on regenerationsurvival and development. 4) Better ways to assess stand conditions and prescribe appropriate silviculturaltreatments. This involved assimilating the findings from the research into silviculturalguidelines and then into a system of stand inventory, analysis, and prescription writing. That system was originally used without the benefit of computers.

    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

    Marquis, David A. 2019. The early years of SILVAH. In: Stout, Susan L., ed. SILVAH: 50 years of science-management cooperation. Proceedings of the Allegheny Society of American Foresters training session; 2017 Sept. 20-22; Clarion, PA. Gen. Tech. Rep. NRS-P-186. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 3-7. https://doi.org/10.2737/NRS-GTR-P-186-Paper1.

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