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    Author(s): M. B. AdamsJ. N. Kochenderfer; T. R. Angradi; P. J. Edwards
    Date: 1995
    Source: In: Gottschalk, Kurt W.; Fosbroke, Sandra L. C., ed. Proceedings, 10th Central Hardwood Forest Conference; 1995 March 5-8; Morgantown, WV.: Gen. Tech. Rep. NE-197. Radnor, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 119-130
    Publication Series: General Technical Report (GTR)
    Station: Northeastern Research Station
    PDF: View PDF  (1.54 MB)

    Description

    Acidic deposition is an important non-point source pollutant in the Central Appalachian region that is responsible for elevated nitrogen (N) and sulfur (S) inputs to forest ecosystems. Nitrogen and calcium (Ca) budgets and plant tissue concentrations were compared for two watersheds, one that received three years of an artificial acidification treatment and an adjacent reference watershed, both located on the Fernow Experimental Forest, West Virginia Treatments consisted of ammonium sulfate fertilizer applied aerially three times per year at an annual rate of 61 kg S ha-1 and 54 kg N ha-1. Trees of four species (Betula lenta L., Prunus serotina Ehrh., Acer rubrum L. and Liriodendron tulipifera L.) were harvested for biomass and nutrient determinations. Some tree species on the treated watershed showed elevated N and decreased Ca levels in some tissues, particularly foliage, but no consistent pattern for any species or tissue component was found. Compared to other watersheds in the central and southern Appalachians, Fernow watersheds are losing more N in streamflow. This loss is almost solely in the form of NO3, which appears to bring about increased leaching of Ca from watersheds.

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    Citation

    Adams, M. B.; Kochenderfer, J. N.; Angradi, T. R.; Edwards, P. J. 1995. Nutrient budgets of two watersheds on the Fernow Experimental Forest. In: Gottschalk, Kurt W.; Fosbroke, Sandra L. C., ed. Proceedings, 10th Central Hardwood Forest Conference; 1995 March 5-8; Morgantown, WV.: Gen. Tech. Rep. NE-197. Radnor, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 119-130

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