Skip to Main content Skip to Navigation
Journal articles

Prediction of zinc and cadmium phytoavailibility within a contamined agricultural site using DGT

Abstract : Risk assessment of metal contamination in cultivated soils needs to address metal phytoavailability. The technique of diffusive gradients in thin films (DGT) has been shown to be a promising tool to assess metal phytoavailability in a wide range of soils. The present study has examined the ability of the DGT method to predict metal phytoavailability within a contaminated agricultural site. Lettuce (Lactuva sativa cv Appia) was grown in nine metal-contaminated soils differing mainly by their pH. Metal concentrations (Zn, Cd) in plant shoots were compared with total soil metal concentrations and free ion metal concentrations in soil pore waters, and effective concentrations, C-E, measured by DGT. Plant Zn concentrations were highly related to C-E, suggesting DGT can be a sensitive tool able to assess Zn phytoavailability within mildly contaminated agricultural soils. Plant Cd concentrations were less closely related to C-E, signifying that processes other than Cd re-supply from the solid phase may occur during soil-plant transfer of Cd.
Keywords : DGT
Document type :
Journal articles
Complete list of metadata

https://hal.inrae.fr/hal-02655385
Contributor : Migration Prodinra Connect in order to contact the contributor
Submitted on : Friday, May 29, 2020 - 10:18:12 PM
Last modification on : Monday, September 27, 2021 - 10:58:01 AM

Identifiers

Collections

Citation

Jean-Yves Cornu, Laurence Denaix. Prediction of zinc and cadmium phytoavailibility within a contamined agricultural site using DGT. Environmental Chemistry, CSIRO Publishing, 2006, 3 (1), pp.61-64. ⟨10.1071/EN05050⟩. ⟨hal-02655385⟩

Share

Metrics

Record views

29