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註釋Study of the effects of acid rain on soil, based on interpretations of soil and geology maps, and geological data of the western provinces and northern territories. Assesses the buffering potentials of soil and the possibilities of reducing the detrimental effects of acidification on water and vegetation. Includes map 1 - Potential of soils and geology to reduce acidity of atmospheric deposition. Map 2 - soil sensitivity to acidic imputs.