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Nutrient Status of Some Contrasting High-Elevation Forests in the Eastern and Western United States

机译：美国东西部部分对比高海拔森林的养分状况

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Comparisons were made of the chemical compositions of soil, soil solution, and foliage in spruce-fir forests in the Great Smoky Mountains National Park in North Carolina, Whiteface Mountain in New York, and on the western slope of the Cascade Mountains in Washington. Soils from all sites had similar and very low base saturations (often less than 10% by the sum-of-cations method). Soil solution chemical compositions varied considerably, however, with the Smokies sites having the highest NO sub 3- , SO sub 42- , Al sup 3+ , total anion, and total cation concentrations, followed by the Whiteface and Cascade sites, respectively. The relationships between these patterns and theoretical considerations of soil-soil solution equilibria are discussed, as is the potential for Al toxicity to red spruce in the two eastern sites. 23 refs., 3 tabs. (ERA citation 13:019112)

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