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El Arfaoui, A., Sayen, S., Paris, M., Keziou, A., Couderchet, M. & Guillon, E. (2012) Is organic matter alone sufficient to predict isoproturon sorption in calcareous soils? Sci. Total Environ. 432 251–256.
Added by: Laurent Cournède (2016-03-10 21:28:38) |
| Type de référence: Article DOI: 10.1016/j.scitotenv.2012.05.066 Numéro d'identification (ISBN etc.): 0048-9697 Clé BibTeX: ElArfaoui2012 Voir tous les détails bibliographiques  |
Catégories: IMN Mots-clés: adsorption, c-13 nmr-spectroscopy, Calcareous soil, coefficients, desorption, Empirical model, equilibria, herbicides, Isoproturon, partition, Pesticide, pesticides, phenanthrene sorption, sorption, terbumeton Créateurs: Couderchet, El Arfaoui, Guillon, Keziou, Paris, Sayen Collection: Sci. Total Environ. |
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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. (C) 2012 Elsevier B.V. All rights reserved.
Added by: Laurent Cournède |