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    Author(s): G. L. Hayes; William E. Hallin
    Date: 1962
    Source: PNW Old Series Research Note No. 221, p. 1-7
    Publication Series: Research Note (RN)
    Station: Pacific Northwest Research Station
    PDF: Download Publication  (380 KB)


    Mixed-conifer forests occupy about 6,000 square miles of southwestern Oregon. These forests are characterized by a mixture of Douglas-fir, sugar pine, ponderosa pine, and other species, with Douglas-fir the most abundant. This paper reports the results of a study comparing the site index of Douglas-fir, sugar pine, and ponderosa pine in the South Umpqua drainage above Elk Creek and gives preliminary recommendations concerning choice of species to grow.

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    Hayes, G. L.; Hallin, William E. 1962. Tree species to grow in the south umpqua drainage. PNW Old Series Research Note No. 221, p. 1-7

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