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Biochemical parameters and bacterial species richness in soils contaminated by sludge-borne metals and remediated with inorganic soil amendments

hal.structure.identifierBiodiversité, Gènes et Ecosystèmes [BioGeCo]
dc.contributor.authorMENCH, Michel
hal.structure.identifierUniversità degli Studi di Firenze = University of Florence = Université de Florence [UniFI]
dc.contributor.authorRENELLA, Giancarlo
hal.structure.identifierUniversita Mediterranea of Reggio Calabria [Reggio Calabria]
dc.contributor.authorGELSOMINO, Antonio
hal.structure.identifierUniversità degli Studi di Firenze = University of Florence = Université de Florence [UniFI]
dc.contributor.authorLANDI, Loretta
hal.structure.identifierUniversità degli Studi di Firenze = University of Florence = Université de Florence [UniFI]
dc.contributor.authorNANNIPIERI, Paolo
dc.date.issued2006
dc.date.conference2005-04-07
dc.description.abstractEnThe effectiveness of two amendments for the in situ remediation of a Cd- and Ni-contaminated soil in the Louis Fargue long-term field experiment was assessed. In April 1995, one replicate plot (S1) was amended with 5% w/w of beringite (B), a coal fly ash (treatment S1 + B), and a second plot with 1% w/w zerovalent-Fe iron grit (SS) (treatment S1+SS), with the aim of increasing metal sorption and attenuating metal impacts. Long-term responses of daily respiration rates, microbial biomass, bacterial species richness and the activities of key soil enzymes (acid and alkaline phosphatase, arylsulfatase, β-glucosidase, urease and protease activities) were studied in relation to soil metal extractability. Seven years after initial amendments, the labile fractions of Cd and Ni in both the S1 + B and S1 + SS soils were reduced to various extents depending on the metal and fractions considered. The soil microbial biomass and respiration rate were not affected by metal contamination and amendments in the S1 + B and S1 + SS soils, whereas the activity of different soil enzymes was restored. The SS treatment was more effective in reducing labile pools of Cd and Ni and led to a greater recovery of soil enzyme activities than the B treatment. Bacterial species richness in the S1 soil did not alter with either treatment. It was concluded that monitoring of the composition and activity of the soil microbial community is important in evaluating the effectiveness of soil remediation practices
dc.language.isoen
dc.subject.enCOAL FLY ASH
dc.subject.enMETAL
dc.subject.enSOIL HYDROLASE
dc.subject.enSOIL MICROBIAL COMMUNITY
dc.subject.enZEROVALENT FE IRON GRIT
dc.title.enBiochemical parameters and bacterial species richness in soils contaminated by sludge-borne metals and remediated with inorganic soil amendments
dc.typeCommunication dans un congrès
dc.identifier.doi10.1016/j.envpol.2006.01.014
dc.subject.halSciences de l'environnement/Environnement et Société
bordeaux.conference.title8th International Conference on the Biogeochemistry of Trace Elements
bordeaux.countryAU
bordeaux.conference.cityAdelaide
bordeaux.peerReviewedoui
hal.identifierhal-02817732
hal.version1
hal.invitedoui
hal.conference.end2005-04-03
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02817732v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.date=2006&rft.au=MENCH,%20Michel&RENELLA,%20Giancarlo&GELSOMINO,%20Antonio&LANDI,%20Loretta&NANNIPIERI,%20Paolo&rft.genre=unknown


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