Effects of Artificial Acid Rain on the Growth and Nutrient Status of Trees
This paper gives results of growth measurements in four field irrigation experiments with artificial acid rain within southern Norway. Foliar analyses were carried out in three of the experiments. Height and diameter growth were stimulated by increased “rain” acidity in a Scots pine sapling stand: The reason for this is probably increased nitrogen uptake from the soil. A beneficial effect of sulphur application either alone, or in combination with increased nitrogen uptake is also possible. In the other experiments no treatment effects on height or diameter growth were found.
KeywordsHeight Growth Plot Size Diameter Growth Acid Precipitation Simulated Acid Rain
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