Titlebook: Regional Acidification Models; Geographic Extent an Juha Kämäri,David F. Brakke,Richard F. Wright Conference proceedings 1989 Springer-Verl

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Chromatic

Sensitivity Distributions of Finnish Lakesthan 100 peg l.. Several sensitive areas affected by acidic deposition were identified, and acidic and low-ANC lakes were found throughout the country. Inclusion of the organic anion component in the estimation of sensitivity markedly increased the number of lakes potentially susceptible to acidic deposition.

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Watershed Acidification — A Chromatographic ProcessThe capacity of this mechanism may be sufficient to retard chronic acidification by years. The mechanism of translocation of Al and Fe and, to a lesser extent, base cations serves to damp episodic pH depressions in streams and extend the recovery from periods of low pH.

MAPLE

The Finnish Integrated Acidification Modelystems. The existing buffer capacity and its depletion is assumed to have an effect on the ecological impacts of acidic deposition. A study consisting of a number of test simulations is now going on to clarify the importance of various parameters.

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Acid-Induced Aluminum Mobilization in Finnish Mineral Soilsease somewhat the pH at which Al dissolution occurs. Al release in the Ao horizon was primarily based on cation exchange reactions and not directly on pH. The affinity of the major metallic cations for exchange sites in the Ao horizon followed the order: K < Mg < Mn < Ca < Al < Fe.

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