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Assessment of Methods for Determining Bioavailability of Trace Elements in Soils: A Review

Pedosphere 2017年第3期27卷 389-406页

作者： Jurate KUMPIENE laura giagnoni Bernd MARSCHNER Sébastien DENYS Michel MENCH Kristin ADRIAENSEN Jaco VANGRONSVELD Markus PUSCHENREITER Giancarlo RENELLA Waste Science & Technology Lule University of Technology Department of Agrifood Production and Environmental Sciences University of Florence Ruhr-Universitt Bochum Joint Research Unit (UMR) Biodiversity Genes & Communities (BIOGECO) French National Institute for Agricultural Research (INRA) Agence Nationale de Sécurité Sanitaire (Anses) i-CLEANTECH Vlaanderen Hasselt University Centre for Environmental Sciences University of Natural Resources and Life Sciences Vienna

Trace element-contaminated soils(TECSs) are one of the consequences of the past industrial development worldwide. Excessive exposure to trace elements(TEs) represents a permanent threat to ecosystems and humans worldwide owing to the capacity of metal(loid)s to cross the cell membranes of living organisms and of human epithelia, and their interference with cell *** of TE bioavailability in soils is complicated due to the polyphasic and reactive nature of soil constituents. To unravel critical factors controlling soil TE bioavailability and to quantify the ecological toxicity of TECSs, TEs are pivotal for evaluating excessive exposure or deficiencies and controlling the ecological risks. While current knowledge on TE bioavailability and related cumulative consequences is growing, the lack of an integrated use of this concept still hinders its utilization for a more holistic view of ecosystem vulnerability and risks for human health. Bioavailability is not generally included in models for decision making in the appraisal of TECS remediation options. In this review we describe the methods for determining the TE bioavailability and technological developments, gaps in current knowledge, and research needed to better understand how TE bioavailability can be controlled by sustainable TECS management altering key chemical properties, which would allow policy decisions for environmental protection and risk management.

关键词： bioaccessibility bioavailability biosensors chemical extractions contaminated soils 'metalloids metals

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Volatile organic compound emission and biochemical properties of degraded Ultisols ameliorated by no tillage and liming

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Pedosphere 2020年第5期30卷 597-606页

作者： laura giagnoni Cosimo TAITI Paloma LEON Corrado COSTA Paolo MENESATTI Rafael ESPEJO Clara GOMEZ-PACCARD Chiquinquira HONTORIA Eduardo VAZQUEZ Marta BENITO Stefano MANCUSO Giancarlo RENELLA Department of Agriculture FoodEnvironment and Forestry(DAGRI)University of FlorenceP.le delle Cascine 18Florence 50144(Italy) Departamento de Production Agraria E.T.S.I.AgrondmicaAlimentaria y de BiosistemasUniversidad Politecnica de MadridAvda.Complutense s/nMadrid 28040(Spain) Consiglio per la Ricerca in Agricoltura e I'Analisi dell'Economia Agraria(CREA)-Unita di Ricerca per ilngegneria Agraria via della Pascolare 16Monterotondo ScaloRM 00015(Italy) Department of Soil Biogeochemistry and Soil Ecology University of BayreuthDr.Hans-Frisch-Strafie 1-3Bayreuth 95448(Germany) University of Padua Department of AgronomyFoodNatural ResourcesAnimals and Environment(DAFNAE)Viale dell'Universita 16Legnaro 35020(Italy)

TTie Ultisols in the Rana de Canamero area in Southwest Spain showed aluminum(Al)phytotoxicity,and the clearance of natural vegetation and decades of intensive conventional agriculture caused the deplation of soil organic matter(SOM).Therefore,we studied the long-term effects of no tillage and liming using sugar beet foam(SF)and red gypsum(RG),alone or in combination,on the restoration of Ultisols affected by acidification,Al phytotoxicity,and SOM *** measured the main soil chemical properties,soil microbial biomass,soil enzyme activities involved in carbon,nitrogen,phosphorus,and sulfur mineralization,and the emission of volatile organic compounds(VOCs).The results indicated that liming effectively neutralized the soil acidity in the long term and,in combination with no tillage,significantly increased soil microbial biomass and enzyme ***-three VOCs were detected using the proton transfer reaction-time of flight(PTR-ToF)technique,and both liming and tillage changed the VOC emission *** greatest difference in VOC emission pattern was observed between no-tilled un-amended soils and tilled lime-amended soils,suggesting the activation of different metabolic pathways within the microbial communities of soils under different *** in VOC emission patterns could be attributed to the decomposition of carbohydrates,which were also sustained by the higher enzyme activities in the lime-amended soils.

关键词： carbohydrate decomposition degraded soils long-term field trial soil acidity soil enzyme activities soil microbial biomass soil restoration

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