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Acidity of tree bark as a bioindicator of forest pollution in southern PolandAuthor(s): Dr. K. Grodzinska
Source: In: Dochinger, L. S.; Seliga, T. A., eds. Proceedings of the first international symposium on acid precipitation and the forest ecosystem; Gen. Tech. Rep. NE-23. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 905-911
Publication Series: General Technical Report (GTR)
Station: Northeastern Research Station
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DescriptionPH values and buffering capacity were determined for bark samples of 5 deciduous trees (oak, alder, hornbeam, ash, linden), one shrub (hazel) and one coniferous tree (Scots pine) in the Cracow Industrial Region (Southern Poland) and for comparison in the Bialowieza Forest (North-Eastern Poland). The correlation was found between acidification of tree bark and air pollution by SO2 in these areas. All trees showed the least acidic reaction in the control area (Bialowieza Forest), more acidic in Niepolomice Forest and the most acidic in the centre of Cracow city. The buffering capacity of the bark against alkali increased with increasing air pollution. The seasonal fluctuations of pH values and buffering capacity were found. Tree bark is recommended as a sensitive and simple indicator of air pollution.
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CitationGrodzinska, Dr. K. 1976. Acidity of tree bark as a bioindicator of forest pollution in southern Poland. In: Dochinger, L. S.; Seliga, T. A., eds. Proceedings of the first international symposium on acid precipitation and the forest ecosystem; Gen. Tech. Rep. NE-23. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 905-911
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