Enzymatic activity of forest soils in the region of influence of deposition from zinc and lead smelter "Miasteczko Śląskie"
The effect of heavy metals on the activity of selected soil enzymes in pine stands , located at various distances from the emission sources (a zinc and lead smelter) was investigated. The obtained results showed that the excessive accumulation of heavy metals in upper soil levels caused inhibition of the activity of the investigated enzymes. In the gradient of industrial pollution a decrease in the activities of urease, asparaginase, acide phosphatase and dehydrogenases was observed. In contrast, significant changes of beta-fructofuranosidase and beta-glucosidase activity were not found. Activity of urease, asparaginase and dehydrogenases seem to be a good index of forest soil degradation caused by industrial pollution.
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