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Microbial community structure and activity in trace elementcontaminatedsoils phytomanaged by Gentle Remediation Options (GRO)

Touceda-Gonzalez, M. (författare)
Instituto de Investigaciones Agrobiologicas de Galicia (IIAG), Consejo Superior de Investigaciones Científicas (CSIC)
Prieto-Fernandez, A. (författare)
Instituto de Investigaciones Agrobiologicas de Galicia (IIAG), Consejo Superior de Investigaciones Científicas (CSIC)
Renella, Giancarlo (författare)
Department of Agrifood Production and Environmental Sciences, University of Florence
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Giagnoni, Laura (författare)
Department of Agrifood Production and Environmental Sciences, University of Florence
Sessitsch, A. (författare)
AIT Austrian Institute of Technology GmbH, Center for Health & Bioresources
Brader, G. (författare)
AIT Austrian Institute of Technology GmbH, Center for Health & Bioresources
Kumpiene, Jurate (författare)
Luleå tekniska universitet,Geovetenskap och miljöteknik
Dimitriou, Ioannis (författare)
Swedish University of Agriculture Sciences, Department of Crop Production Ecology
Eriksson, J. (författare)
Swedish University of Agriculture Sciences, Department of Soil and Environment
Friesl-Hanl, Wolfgang (författare)
AIT Austrian Institute of Technology
Gałązka, Rafał (författare)
Institute of Soil Science and Plant Cultivation - State Research Institute
Janssen, Jolien (författare)
Hasselt University, Centre for Environmental Sciences
Mench, Michel (författare)
Agence Nationale de Sécurité Sanitaire (Anses)
Müller, Ingo (författare)
Saxon State Agency for Environment, Agriculture and Geology
Neu, Silke (författare)
Saxon State Office for Environment, Agriculture and Geology
Puschenreiter, Markus (författare)
University of Natural Resources and Life Sciences Vienna
Siebielec, Grzegorz (författare)
Institute of Soil Science and Plant Cultivation - State Research Institute
Vangronsveld, Jaco (författare)
Hasselt University, Centre for Environmental Sciences
Kidd, Petra S. (författare)
Instituto de Investigaciones Agrobiológicas de Galicia (IIAG), Consejo Superior de Investigaciones Científicas (CSIC), Santiago de Compostela
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 (creator_code:org_t)
Elsevier, 2017
2017
Engelska.
Ingår i: Environmental Pollution. - : Elsevier. - 0269-7491 .- 1873-6424. ; 231:1, s. 237-251
  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
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  • Gentle remediation options (GRO) are based on the combined use of plants, associated microorganisms and soil amendments, which can potentially restore soil functions and quality. We studied the effects of three GRO (aided-phytostabilisation, in situ stabilisation and phytoexclusion, and aided-phytoextraction) on the soil microbial biomass and respiration, the activities of hydrolase enzymes involved in the biogeochemical cycles of C, N, P, and S, and bacterial community structure of trace element contaminated soils (TECS) from six field trials across Europe. Community structure was studied using denaturing gradient gel electrophoresis (DGGE) fingerprinting of Bacteria, α- and β-Proteobacteria, Actinobacteria and Streptomycetaceae, and sequencing of DGGE bands characteristic of specific treatments. The number of copies of genes involved in ammonia oxidation and denitrification were determined by qPCR.Phytomanagement increased soil microbial biomass at three sites and respiration at the Biogeco site (France). Enzyme activities were consistently higher in treated soils compared to untreated soils at the Biogeco site. At this site, microbial biomass increased from 696 to 2352 mg ATP kg−1 soil, respiration increased from 7.4 to 40.1 mg C-CO2 kg−1 soil d−1, and enzyme activities were 2–11-fold higher in treated soils compared to untreated soil. Phytomanagement induced shifts in the bacterial community structure at both, the total community and functional group levels, and generally increased the number of copies of genes involved in the N cycle (nirK, nirS, nosZ, and amoA). The influence of the main soil physico-chemical properties and trace element availability were assessed and eventual site-specific effects elucidated. Overall, our results demonstrate that phytomanagement of TECS influences soil biological activity in the long term.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Naturresursteknik -- Annan naturresursteknik (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Environmental Engineering -- Other Environmental Engineering (hsv//eng)

Nyckelord

Microbial community structure
Enzyme activity
Phytoexclusion
Phytoextraction
Phytostabilization
Avfallsteknik
Waste Science and Technology

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