Summary
Experiments with young spruce trees (Picea abies) showed that acidic mist (pH 2.75) leached much higher rates of cations than a control mist (pH 5.00). Nevertheless the cation concentration in the needles was hardly affected by this higher leaching rates. Exposure to acidic mist led to higher leaching of sugars and reduced the starch content of the youngest needles to about one half compared with needles exposed to the control mist.
Acidic mist damaged the wax layer and the stomatal wax props of the needles of the youngest shoot. Some of these needles turned redish brown and then were shed. These symptoms were similar to those found in spruce trees grown under natural conditions and showing decline. Needle loss in the treatment with acidic mist was much higher than in the control treatment.
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© 1988 ECSC, EEC, EAEC, Brussels and Luxembourg
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Mengel, K., Breininger, M.T., Lutz, H.J. (1988). Effect of Acidic Mist on Nutrient Leaching, Carbohydrate Status and Damage Symptoms of Picea Abies. In: Mathy, P. (eds) Air Pollution and Ecosystems. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-4003-1_32
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DOI: https://doi.org/10.1007/978-94-009-4003-1_32
Publisher Name: Springer, Dordrecht
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