Soil Reaction and Acidic Deposition. - I. Introduction. - II. Buffering Mechanisms in Soil. - III. Capacity Effects of Acidic Deposition. - IV. Intensity Effects. - V. Discussion. - References. - Acidic Sulfate Soils. - I. Introduction. - II. Interactions of Soil Aeration. - III. Definition and Taxonomy of Acidic Sulfate Soils. - IV. Genesis of Acidic Sulfate Soils. - V. Summary. - References 59s. - Aluminum Speciation: Methodology and Applications. - I. Introduction. - II. The Evolution of a Species. - III. Methods and Approaches. - IV. Chemical Speciation and A1 Toxicity. - V. Chemical Speciation of A1 in the Environment. - VI. Summary and Conclusions. - References. - Snowpack Storage of Pollutants Release during Melting and Impact on Receiving Waters. - I. Introduction. - II. Snowpack Chemistry. - III. Snowpack Processes. - IV. Snowmelt Effects. - References. - Buffering of pH Depressions by Sediments in Streams and Lakes. - I. Introduction. - II. Stream Sediments. - III. Lake Sediments. - IV. Summary. - References. - Mitigation of Acidic Conditions in Lakes and Streams. - I. Overview of Mitigation Efforts. - 1II. Conceptual Basis for Liming Surface Waters. - III. Treatment Criteria and Methods. - IV. Modeling Reacidification of Surface Waters. - V. Ecological Effects of Base Treatment. - VI. Conclusions. - References. - Recovery of Acidified and Metal-Contaminated Lakes in Canada. - I. Introduction. - II. Case Study 1: Lake 223 in the Experimental Lakes Area. - III. Case Study 2: Alice and Baby Lakes At Coniston Ontario. - IV. Case Study 3: Recovery of Moderately Acidic Lakes in the. - Sudbury Region. - V. Conclusions. - References. - Paleoecological Analyses of Lake Acidification Trends in North America and Europe Using Diatoms and Chrysophytes. - I. Introduction. - II. Inferring Past Lakewater pH: Rationale andMethods. - III. Assessment of Recent Lake Acidification Trends in Eastern North America and Europe. - IV. Discussion. - V. Conclusions. - References. Language: English