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Article Dans Une Revue Science of the Total Environment Année : 2012

Is organic matter alone sufficient to predict isoproturon sorption in calcareous soils?

Résumé

Eleven soils collected from Champagne-Ardenne area (France) were used to investigate isoproturon sorption in laboratory conditions. Our results identified the organic matter (OM) and the ratio of calcite content to OM content (Rt) as the main two parameters governing isoproturon retention in soils. While organic matter favored pesticide sorption, calcite had an antagonistic effect since it limited isoproturon retention. The Rt ratio of calcite content to organic matter content in soils appeared to be a parameter that should be considered in predictive models in addition to OM in regions presenting calcareous soils. Adsorption of isoproturon as a function of Rt and OM was successfully described through a simple empirical model.

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Chimie

Dates et versions

hal-02944728 , version 1 (21-09-2020)

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Citer

Achouak El Arfaoui, Stéphanie Sayen, Michaël Paris, Amor Keziou, Michel Couderchet, et al.. Is organic matter alone sufficient to predict isoproturon sorption in calcareous soils?. Science of the Total Environment, 2012, 432, pp.251-256. ⟨10.1016/j.scitotenv.2012.05.066⟩. ⟨hal-02944728⟩
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