Increased zinc and copper availability in organic waste amended soil potentially involving distinct release mechanisms

Tella Marie, Bravin Matthieu, Thuriès Laurent, Cazevieille Patrick, Chevassus-Rosset Claire, Collin Blanche, Chaurand Perrine, Legros Samuel, Doelsch Emmanuel. 2016. Increased zinc and copper availability in organic waste amended soil potentially involving distinct release mechanisms. Environmental Pollution, 212 : 299-306.

Quartile : Q1, Sujet : ENVIRONMENTAL SCIENCES

Liste HCERES des revues (en SHS) : oui

Thème(s) HCERES des revues (en SHS) : Psychologie-éthologie-ergonomie

Résumé : This study aimed at determining the fate of trace elements (TE) following soil organic waste (OW) application. We used a unique combination of X-ray absorption spectroscopy analyses, to determine TE speciation, with incubation experiments for in situ monitoring of TE availability patterns over a time course with the technique of the diffusive gradients in thin films (DGT). We showed that copper (Cu) and zinc (Zn) availability were both increased in OW-amended soil, but their release was controlled by distinct mechanisms. Zn speciation in OW was found to be dominated by an inorganic species, i.e. Zn sorbed on Fe oxides. Zn desorption from Fe oxides could explain the increase in Zn availability in OW-amended soil. Cu speciation in OW was dominated by organic species. Cu release through the mineralization of organic carbon from OW was responsible for the increase in Cu availability.

Mots-clés Agrovoc : fertilisation, déchet agricole, cuivre, zinc, transport des substances nutritives, fertilité du sol, matière organique du sol, cycle du carbone, minéralisation du carbone, utilisation des déchets, lisier

Mots-clés géographiques Agrovoc : Madagascar, Sénégal, La Réunion, France

Classification Agris : P33 - Chimie et physique du sol
P35 - Fertilité du sol
F04 - Fertilisation
Q70 - Traitement des déchets agricoles
000 - Autres thèmes

Champ stratégique Cirad : Axe 1 (2014-2018) - Agriculture écologiquement intensive

Auteurs et affiliations

• Tella Marie, CIRAD-PERSYST-US Analyses (FRA)
• Bravin Matthieu, CIRAD-PERSYST-UPR Recyclage et risque (REU) ORCID: 0000-0002-1436-7837
• Thuriès Laurent, CIRAD-PERSYST-UPR Recyclage et risque (REU) ORCID: 0000-0002-1365-7891
• Cazevieille Patrick, CIRAD-PERSYST-UPR Recyclage et risque (FRA)
• Chevassus-Rosset Claire, CIRAD-PERSYST-UPR Recyclage et risque (FRA)
• Collin Blanche, Université d'Aix-Marseille (FRA)
• Chaurand Perrine, Université d'Aix-Marseille (FRA)
• Legros Samuel, CIRAD-PERSYST-UPR Recyclage et risque (SEN)
• Doelsch Emmanuel, CIRAD-PERSYST-UPR Recyclage et risque (FRA) ORCID: 0000-0002-7478-4296

Source : Cirad-Agritrop (https://agritrop.cirad.fr/579603/)

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