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Nitrogen Mineralization and Nitrification Potentials Following Clearcutting in the Hoosier National Forest, Indiana

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Potential nitrogen mineralization and nitrification were examined in an age sequence of clearcut and control hardwood forests. Results of laboratory incubations indicated that nitrification was always greater in clearcut soils than in control forest soils, while mineralization was significantly greater only in a 4-year-old clearcut. Increasing moisture increased rates of mineralization and nitrification in both clearcut and control forest soils. In situ incubations indicated that warmer soil temperatures increased rates of mineralization and nitrification in the youngest clearcut. Regardless of the immediate effects of temperature and moisture, all clearcut soils produced more nitrate than control soils under identical conditions. The results of a microlysimeter experiment suggested that these differences are due to the initial population size of nitrifying bacteria. Forest Sci. 27:781-791.
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Keywords: Incubation; microlysimeter; nitrapyrin; nitrogen availability

Document Type: Journal Article

Affiliations: Department of Botany, University of North Carolina, Chapel Hill, NC 27514

Publication date: 1981-12-01

More about this publication?
  • Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
    Forest Science is published bimonthly in February, April, June, August, October, and December.

    2016 Impact Factor: 1.782 (Rank 17/64 in forestry)

    Average time from submission to first decision: 62.5 days*
    June 1, 2016 to Feb. 28, 2017

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
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