Enzyme activity as an indicator of soil-rehabilitation processes at a zinc and lead ore mining and processing area.
The activities of soil enzymes in relation to the changes occurring in the soil on a degraded area in southern Poland after zinc and lead mining were analyzed. An evaluation of the usefulness of urease and invertase activities for estimating the progress of the rehabilitation processes in degraded s...
| Publicado en: | Journal of Environmental Management Vol. 132; pp. 250 - 257 |
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| Autores principales: | , , |
| Formato: | Artículo |
| Publicado: |
Academic Press Inc.
Jan2014
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=93486293&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 93486293 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 03014797 EMJ jtl: Journal of Environmental Management issn: 03014797 maglogo: N pubinfo: dt: Jan2014 vid: 132 pid: 735 pub: Academic Press Inc. artinfo: ui: 93486293 10.1016/j.jenvman.2013.10.022 ppf: 250 ppct: 7 formats: tig: atl: Enzyme activity as an indicator of soil-rehabilitation processes at a zinc and lead ore mining and processing area. aug: au: Ciarkowska, Krystyna Sołek-Podwika, Katarzyna Wieczorek, Jerzy affil: Soil Science and Soil Protection Department, University of Agriculture in Krakow, Aleja Mickiewicza 21, 31-120 Krakow, Poland Department of Agricultural and Environmental Chemistry, University of Agriculture in Krakow, Poland su: Soil enzymology Soil restoration Zinc mining Lead mining Mines & mineral resources & the environment Urease Invertase Cadmium Soil composition Metal biodegradation sug: subj: Lead Ore and Zinc Ore Mining Site Preparation Contractors Remediation Services Soil enzymology Soil restoration Zinc mining Lead mining Mines & mineral resources & the environment Urease Invertase Cadmium Soil composition Metal biodegradation keyword: Heavy metals Mining and processing area Rehabilitation Soil enzymes Heavy metals Mining and processing area Rehabilitation Soil enzymes ab: The activities of soil enzymes in relation to the changes occurring in the soil on a degraded area in southern Poland after zinc and lead mining were analyzed. An evaluation of the usefulness of urease and invertase activities for estimating the progress of the rehabilitation processes in degraded soil was performed. The data show that the soil samples differed significantly in organic carbon (0.68–104.0gkg) and total nitrogen (0.03–8.64gkg) content in their surface horizons. All of the soil samples (apart from one covered with forest) had very high total concentrations of zinc (4050–10,884mgkg), lead (959–6661mgkg) and cadmium (24.4–174.3mgkg) in their surface horizons, and similar concentrations in their deeper horizons. Nevertheless, the amounts of the soluble forms of the above-mentioned heavy metals were quite low and they accounted for only a small percentage of the total concentrations: 1.4% for Zn, 0.01% for Pb and 2.6% for Cd. Urease activities were ranked as follows: soil from flotation settler (0.88–1.78μgN–NH 2h g)<soil from="" old="" slag="" heaps="" (1.77–2.51μgn–nh=""> 2h g)<soil undisturbed="" by="" mining="" activity="" (2.14–5.73μgn–nh=""> 2h g). Invertase activities were similar in soil that was undisturbed by mining and in soil from old slag heaps, ranging from 20.5 to 77.1mg of the inverted sugar, but they were much lower in soil from the flotation settler (0.12–6.95mg of the inverted sugar). The results demonstrated that heavy pollution with Zn, Pb and Cd slightly decreased the activities of urease and invertase. It is thought that it resulted from the enzyme reactions occurring in slightly acidic or alkaline soil conditions. Under such conditions, heavy metals occur mainly in insoluble forms. The activities of these enzymes are strongly dependent on the content and decomposition of organic matter in the soil.</soil></soil> pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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