title: Effect of heavy metals on soil enzyme activity at different field conditions in Middle Spis mining area (Slovakia).
abstract: Heavy metals concentrations were measured in the former mining area located in Hornad river valley (Slovakia). Soil samples were taken in 2012 from 20 sites at two field types (grasslands, heaps of waste material) and two different areas. Total content of heavy metals (Cu, Pb, Zn, Hg), urease (URE), acid phosphatase (ACP), alkaline phosphatase (ALP), soil reaction (pH) were changing depending on the field/area type. The tailing pond and processing plants have been found as the biggest sources of pollution. URE, ACP and ALP activities significantly decreased while the heavy metal contents increased. Significant differences were found among area types in the heavy metal contents and activity of URE. No statistical differences in the content of heavy metals but significant statistical differences for soil pH were found for field types (grassland and heaps). Significant negative correlation was found for URE-Pb, URE-Zn and also between soil reaction and ACP and ALP.
authors.affiliation: Department of Ecology, Faculty of Humanities and Natural Sciences, University of Prešov, Prešov, Slovakia, lenka.angelovicova@gmail.com.
authors.forename: Lenka
authors.initials: L
authors.lastname: Angelovičová
authors.forename: Martin
authors.initials: M
authors.lastname: Lodenius
authors.forename: Esa
authors.initials: E
authors.lastname: Tulisalo
authors.forename: Danica
authors.initials: D
authors.lastname: Fazekašová
mesh_terms: D000135:Acid Phosphatase / Q000378:metabolism; D000469:Alkaline Phosphatase / Q000378:metabolism; D004777:Environment; D004784:Environmental Monitoring; D019216:Metals, Heavy / Q000032:analysis / Q000633:toxicity*; D064307:Microbiota / Q000187:drug effects; D008906:Mining; D018154:Slovakia; D012987:Soil / Q000737:chemistry*; D012988:Soil Microbiology; D012989:Soil Pollutants / Q000032:analysis / Q000633:toxicity*; D014510:Urease / Q000378:metabolism
chemical_list: D019216:Metals, Heavy; D012987:Soil; D012989:Soil Pollutants; D000469:Alkaline Phosphatase; D000135:Acid Phosphatase; D014510:Urease