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    Author(s): Douglas M. Stone; John D. Elioff; Donald V. Potter; Donald B. Peterson; Robert Wagner
    Date: 2001
    Source: USDA Forest Service Proceedings. p.137-143. (2001)
    Publication Series: Scientific Journal (JRNL)
    Station: North Central Research Station
    PDF: View PDF  (2.57 MB)

    Description

    A reserve tree method(RTM)of harvesting was installed in six 70-to75-year-old aspen-dominated stands to determine if retaining 10 to 15 dominant aspen per acre would decrease sucker density to facilitate restoration of a conifer component. A reserve shelterwood cut was applied to three additional stands to evaluate performance of white pine planted under 50% crown cover. After the first full growing season following harvest, 96% of the RTM harvested areas were stocked; sucker density averaged 27,000(27 k) per acre versus 38.2 k per acre on a clearcut control, 41% greater. Basal diameter of dominant suckers averaged 0.45 inch, 28% greater than the control, and mean height was 60 inches, 33%greater. The control site had 3.1 k stems per acre of associated commercial species versus 5.8 k on the RTM sites, an 87% difference. Four of the nine stands have been planted; first- year survival ranged from 75% to near 100%. The RTM shows promise for reducing sucker density, increasing their early growth, maintaining species diversity, and providing abundant regeneration of commercial species on a high proportion of the areas harvested. Early results indicate that both the RTM and shelterwood methods can facilitate restoring a component of native conifer species in these ecosystems.

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    Citation

    Stone, Douglas M.; Elioff, John D.; Potter, Donald V.; Peterson, Donald B.; Wagner, Robert. 2001. Restoration of Aspen-Dominated Ecosystem in the Lake States. USDA Forest Service Proceedings. p.137-143. (2001)

    Keywords

    RTM, harvesting, regeneration, ecosystem, Great Lakes Region

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