Long-Term Nitrogen -Fertilization Increases Winter Injury in Montane Red Spruce (Picea rubens) Foliage
نویسندگان
چکیده
T. D. Perkins is Director of Research, and G. T. Adams and S. T. Lawson are Research Ass istants, Proctor Maple Research Center, T he University of Vermont;· P. 0. Box 233, Harvey Road, Underhill Center, VT 05490 USA. P. G. Schaberg is Research Plant Physiologist, Northeastern Experiment Station, USDA Forest Service, Burlington, VT 05402 USA. S. G. McNulty is Program Manager, Southern Global Change Program, USDA Forest Service, Raleigh, NC 27705 USA. Address correspondence to T. D. Perkins at the above address. This research was supported by a USDA NRI grant to T. D. Perkins and a Cooperative Agreement with Dr. Mel Tyree of the U.S. Forest Service.
منابع مشابه
Calcium addition at the Hubbard Brook Experimental Forest increases sugar storage, antioxidant activity and cold tolerance in native red spruce (Picea rubens).
In fall (November 2005) and winter (February 2006), we collected current-year foliage of native red spruce (Picea rubens Sarg.) growing in a reference watershed and in a watershed treated in 1999 with wollastonite (CaSiO(3), a slow-release calcium source) to simulate preindustrial soil calcium concentrations (Ca-addition watershed) at the Hubbard Brook Experimental Forest (Thornton, NH). We ana...
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