Abstract
Short-term and medíum-term effects of liming (CaCO3), fertilization [5Ca(NO)3)2·NH4NO3], and acidification on soil bioactivity were measured in a spruce stand in Southern Germany. The experiment was set up in a randomized block design. Acid precipitation lowered the pH, liming increased the pH, while fertilization caused only small alterations in pH values. Significant differences in soil moisture occurred only in the mineral horizons. The soil ATP content of the humus layers decreased in all plots (control included) up to day 100. On all sampling dates, a pronounced decrease in ATP content followed the acidification. Minor decreases in ATP were observed after fertilization, while liming produced no defined effects. Similar trends, but less pronounced, were observed in the mineral horizons. Only a few significant correlations were found between pH values and ATP or between moisture and ATP within a treatment and sampling date.
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Present address: Institut für Biologie II (Zoologie), RWTH Aachen, Kopernikusstrasse 16, D-52056 Aachen, Germany
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Wanner, M., Funke, I. & Funke, W. Effects of liming, fertilization and acidification on pH, soil moisture, and ATP content of soil from a spruce forest in Southern Germany. Biol Fert Soils 17, 297–300 (1994). https://doi.org/10.1007/BF00383985
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DOI: https://doi.org/10.1007/BF00383985