Abstract
Current and one-year-old foliage was collected from sixty-five red spruce trees growing in thirteen stands at different elevations in the Green Mountains of Vermont and Adirondacks of New York. Sample trees were randomly selected from visually healthy trees at each site. Foliage was analyzed for major and minor elements. In July 1984, foliar Ca, Mg, and Zn concentrations were significantly greater at low than at high elevations. In October 1984, Ca, Mg, and Zn concentrations were higher at low elevations and Ca and Mg concentrations varied significantly among locations within elevational groups. Nitrogen concentration was significantly higher in the high-elevation group in July but not in October. The average red spruce foliar Mg concentration at the end of the growing season in the high elevation stands (442 mg kg−1) is much lower than values reported for other mature red spruce stands in the eastern United States.
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Friedland, A.J., Hawley, G.J. & Gregory, R.A. Red spruce (Picea rubens Sarg.) foliar chemistry in Northern Vermont and New York, USA. Plant Soil 105, 189–193 (1988). https://doi.org/10.1007/BF02376782
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DOI: https://doi.org/10.1007/BF02376782