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Increased zinc and copper availability in organic waste amended soil potentially involving distinct release mechanisms Texte intégral
2016
Tella M. | Bravin M. | Thuriès L. | Cazevieille P. | Chevassus-Rosset C. | Collin B. | Chaurand P. | Legros S. | Doelsch E.
Increased zinc and copper availability in organic waste amended soil potentially involving distinct release mechanisms Texte intégral
2016
Tella M. | Bravin M. | Thuriès L. | Cazevieille P. | Chevassus-Rosset C. | Collin B. | Chaurand P. | Legros S. | Doelsch E.
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. (Résumé d'auteur)
Afficher plus [+] Moins [-]Increased zinc and copper availability in organic waste amended soil potentially involving distinct release mechanisms Texte intégral
2016
Tella, Marie | Bravin, Matthieu N. | Thuriès, Laurent | Cazevieille, Patrick | Chevassus-Rosset, Claire | Collin, Blanche | Chaurand, Perrine | Legros, Samuel | Doelsch, Emmanuel
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.
Afficher plus [+] Moins [-]Increased zinc and copper availability in organic waste amended soil potentially involving distinct release mechanisms
Diagnosis and management of field pollution in the case of an organochlorine pesticide, the chlordecone Texte intégral
2014
Woignier T. | Clostre F. | Cattan P. | Levillain J. | Cabidoche Y.M. | Lesueur Jannoyer M.
Reduced pesticide bioavailability in soil by organic amendment Texte intégral
2016
Woignier T. | Clostre F. | Fernandes P. | Soler A. | Rangon L. | Lesueur Jannoyer M.
