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Abstract
The changing acidity of air and precipitation over most of Europe and part of U. S. is only part of a larger problem--changes of the chemical climate caused by a variety of emissions into the atmosphere (13, 36). These emissions may create a local, a regional or a global situation depending only on the life-time of the pollutants in the atmosphere. The atmospheric sciences give some answers in this respect, but not all. Soils, vegetation and surface waters act not only as a passive sink for elements in the atmosphere. Several feed-back mechanisms take place including continuous exchange, increased or reduced storage in the soil, changes in the flux of chemical compounds from soils and surface waters, and so on. The problem of air pollution or the impact of a specific pollutant can only be understood when reactions and interactions between all reservoirs are taken into account.
Parent Publication
Citation
Odén, Svante 1976. The acidity problem -- an outline of concepts. 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. 1-36
