Search results for: Smith, Gretchen Cole

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  1. 1

    Ozone bioindicator sampling and estimation

    Authors: Smith, Gretchen Cole
    Published: U.S. Dept. of Agriculture, Forest Service, Northern Research Station, 2007
    Physical Description: 34 pages : digital, PDF file.
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  2. 2

    Ozone bioindicators and forest health : a guide to the evaluation, analysis, and interpretation of the ozone injury data in the Forest Inventory and Analysis Program

    Authors: Smith, Gretchen Cole
    Published: U.S. Dept. of Agriculture, Forest Service, Northern Research Station, 2008
    Physical Description: 1 online resource (100 pages) : illustrations, maps.
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  3. 3

    Ozone injury to forests across the northeast and north central United States, 1994 - 2010

    Authors: Smith, Gretchen Cole, Morin, R. S., McCaskill, George L.
    Published: U.S. Dept. of Agriculture, Forest Service, Northern Research Station, 2012
    Physical Description: 1 online resource (46 pages) : color illustrations.
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