Title: Acid mist and soil Ca and Al alter the mineral nutrition and physiology of red spruce
Author: Schaberg, P.G.; DeHayes, D.H.; Hawley, G.J.; Strimbeck, G.R.; Cumming, J.R.; Murakami, P.F.; Borer, C.H.
Source: Tree Physiology. 20: 73-85.
Description: We examined the effects and potential interactions of acid mist and soil solution Ca and Al treatments on foliar cation concentrations, membrane-associated Ca (mCa), ion leaching, growth, carbon exchange, and cold tolerance of red spruce (Picea rubens Sarg.) saplings. Soil solution Ca additions increased foliar Ca and Zn concentrations, and increased rates of respiration early in the growing season (July). Soil Al treatment had a broad impact, reducing foliar concentrations of Ca, Mg, Mn, P and Zn, and resulting in smaller stem diameters, sapling heights and shoot lengths compared with soil treatments with no added Al. Aluminum treatment also reduced respiration when shoots were elongating in July and decreased net photosynthesis at the end of the growing season (September).
Keywords: acid precipitation, aluminum, calcium, cations, cold tolerance, foliage, growth, leaching, membrane-associated calcium, photosynthesis, Picea rubens, respiration
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Schaberg, P.G.; DeHayes, D.H.; Hawley, G.J.; Strimbeck, G.R.; Cumming, J.R.; Murakami, P.F.; Borer, C.H. 2000. Acid mist and soil Ca and Al alter the mineral nutrition and physiology of red spruce. Tree Physiology. 20: 73-85.
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