Early efforts at remediation of contaminated soils involve overturn or removal of the uppermost soil horizons. We find that such disruption is counterproductive, as it actually increases the mobility of the heavy metals involved. In our study, we sought to replicate in a controlled manner this commonly used remediation strategy and measure Pb, Zn, Cu and As concentrations in all soil horizons-both prior to and 1 year after disruption by trenching. BCR analyses (sequential leaching) indicate that Pb is affected to the greatest degree and is most highly mobile; however, Zn and As remain insoluble, thus partially ameliorating the detrimental effect. Differences in vegetation cover (i.e. spruce vs. beech forest) have little influence on overall element mobility patterns. The Krušné hory (Ore Mts., Czech Republic) study area is one of the more heavily contaminated areas in Central Europe, and thus the results reported here are applicable to areas affected by brown-coal-burning power plants.

• Klíčová slova
• BCR sequential extraction, Contamination, Forest soils, Hazardous elements, Mobility, Načetín,
• MeSH
• kyselý déšť analýza   statistika a číselné údaje   MeSH
• látky znečišťující půdu analýza   MeSH
• lesy MeSH
• monitorování životního prostředí * MeSH
• olovo analýza   MeSH
• půda chemie   MeSH
• těžké kovy analýza   MeSH
• zinek analýza   MeSH
• znečištění životního prostředí analýza   statistika a číselné údaje   MeSH
• Publikační typ
• časopisecké články MeSH
• Geografické názvy
• Česká republika MeSH
• Evropa MeSH
• Názvy látek
• kyselý déšť MeSH
• látky znečišťující půdu MeSH
• olovo MeSH
• půda MeSH
• těžké kovy MeSH
• zinek MeSH