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Last edited by ImportBot
August 29, 2008 | History
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J. D Helvey

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5 works Add another?

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  • Cover of: Input-output budgets of selected nutrients on an experimental watershed near Parsons, West Virginia

    First published in 1986 2 editions in 1 language
    Not in Library

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  • Cover of: Effects of defoliation by Douglas-fir tussock moth on timing and quantity of streamflow

    First published in 1978 1 edition in 1 language
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  • Cover of: Flood frequency and culvert sizes needed for small watersheds in the central Appalachians

    First published in 1981 1 edition in 1 language
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  • Cover of: Grass seeding and soil erosion in a steep, logged area in northeastern Oregon

    First published in 1979 1 edition in 1 language
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  • Cover of: Soil density and moisture content on two unused forest roads during first 30 months after construction

    First published in 1989 1 edition in 1 language
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We need a photo of J. D Helvey

Subjects
Acid precipitation (Meteorology), Culverts, Defoliation, Design and construction, Douglas-fir tussock moth, Environmental aspects, Environmental aspects of Lumbering, Floods, Forest roads, Grasses, Lumbering, Runoff, Soil erosion, Watersheds
Places
Oregon, Appalachian Mountains, Appalachian region, Parsons, West Virginia

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ID Numbers

  • OLID: OL4301822A

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History

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August 29, 2008 Created by ImportBot Imported from Western Washington University MARC record