Summary
The activity of hydrolytic soil enzymes was studied on spruce mor, polluted with Cu and Zn from a brass foundry in Sweden. Approximately straight regression lines were obtained between enzymatic activity or respiration rate and log Cu+Zn concentration, with highly significant negative regression coefficients for urease and acid phosphatase activity as well as respiration rate, whereas β-glucosidase activity was not measurably lower at high concentrations of Cu+Zn.
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Tyler, G. Heavy metal pollution and soil enzymatic activity. Plant Soil 41, 303–311 (1974). https://doi.org/10.1007/BF00017258
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DOI: https://doi.org/10.1007/BF00017258