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    Author(s): Michael A. Jenkins; Stephen G. Pallardy
    Date: 1993
    Source: In: Gillespie, Andrew R.; Parker, George R.; Pope, Phillip E.; Rink, George: eds. Proceedings of the 9th Central Hardwood Forest Conference; Gen. Tech. Rep. NC-161. St. Paul, MN: U.S. Department of Agriculture, Forest Service, North Central Forest Experiment Station: 327-341
    Publication Series: General Technical Report (GTR)
    Station: North Central Research Station
    PDF: View PDF  (2.54 MB)

    Description

    Changes in tree species composition and regeneration patterns were studied in 53 permanent vegetation plots located at two sites (Pioneer Forest and University State Forest) in oak-hickory forests of southeastern Missouri where mortality and decline of red oak species have been identified. The two sites also exhibited differing levels of decline and mortality. Between 1962 and 1991 the importance value (IV) of white oak at University State Forest increased from 20 to 56%, while that of black oak and, to a lesser degree, scarlet oak decreased. Over the same 28 year period, the IV of white oak at Pioneer Forest increased from 36 to 49%, but the importance of black oak remained constant, and the importance value of scarlet oak decreased only slightly. Sapling densities of the red oak species group (black oak, scarlet oak, and southern red oak) ranged from 2-43/ha at University State Forest and from 0 to 30/ha at Pioneer Forest. These densities were low when compared to those of the corresponding white oak species group (white oak and post oak) sapling densities for University State Forest (16-51/ha) and Pioneer Forest (0-148/ha). Recent recruitment does suggest, however, that red oak group species will have a continued importance in these forests; the densities of black oak and scarlet oak seedlings (880-1665/ha at University State Forest and 408-1167/ha at Pioneer Forest) were comparable to those of post oak and white oak (1187--1474/ha at University State Forest and 233-2625/ha at Pioneer Forest).

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    Citation

    Jenkins, Michael A.; Pallardy, Stephen G. 1993. A comparison of forest dynamics at two sites in the Southeastern Ozark Mountains of Missouri. In: Gillespie, Andrew R.; Parker, George R.; Pope, Phillip E.; Rink, George: eds. Proceedings of the 9th Central Hardwood Forest Conference; Gen. Tech. Rep. NC-161. St. Paul, MN: U.S. Department of Agriculture, Forest Service, North Central Forest Experiment Station: 327-341

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