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  1. Results of a long-term thinning study in some natural, even-aged pine stands of the Midsouth

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    Author(s): Don C. Bragg
    Date: 2013
    Source: In: Guldin, James M., ed. 2013. Proceedings of the 15th biennial southern silvicultural research conference. e-Gen. Tech. Rep. SRS-GTR-175. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. 325-335.
    Publication Series: Paper (invited, offered, keynote)
    Station: Southern Research Station
    PDF: Download Publication  (250.51 KB)
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    Description

    This paper reports on a long-term thinning study established in stands of naturally seeded loblolly (Pinus taeda L.) and shortleaf (P. echinata Mill.) pine in southern Arkansas and northern Louisiana. Plots were established in 1949–50 and 1954 in previously unmanaged stands, thinned about once every 5 years from age 20 to 60 years (40 years of active cutting, to 1990). The study was discontinued in 1995 when the stands were about 65 years old. Low-density stands on good sites produced bigger individual pines more quickly than denser stands on medium sites. Long-term sawtimber yields did not follow this pattern, however. While medium-quality sites produced somewhat lower gross yields, denser stands ultimately resulted in significantly higher total yields, primarily because of their better stocking.

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    Citation

    Bragg, Don C. 2013. Results of a long-term thinning study in some natural, even-aged pine stands of the Midsouth. In: Guldin, James M., ed. Proceedings of the 15th biennial southern silvicultural research conference. e-Gen. Tech. Rep. SRS-GTR-175. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station: 325-335.

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