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Dimensionner les zones tampons enherbées et boisées pour réduire le transfert hydrique des produits phytosanitaires

Abstract : Buffer zones can mitigate water pollutants transfer towards surface water, specially pesticides, in combination with agricultural practices respectful of environment. The choice of the type of buffer zones to use and of its position in the watershed is important, and was dealt with in a joined paper in this volume (Buffer zones efficiency diagnosis in order to mitigate pesticides transfer by water ; Bernard et al.). After having performed this diagnosis, the next step is to define buffer zones size considering the field characteristics. As a matter of fact, these characteristics (soil, presence or not of a water table, crop, climate, topography) have a significant influence on their efficiency. Irstea developed a guide in order to help stakeholders to design vegetated buffer zones. This report describes how to use free tools and software in order to design one buffer zone considering both the contributive area and the buffer zone area characteristics. In particular, VFSMOD model -Vegetative Filter Strip Modeling System-, which was modified in order to be able to deal with water table conditions in the buffer zone soil, is used to simulate vegetated filter strip behaviour considering water and suspended patters transfers. This article presents the method, the tools which are used, and the method application on a small agricultural catchment (La Fontaine du Theil, West of France)
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Submitted on : Saturday, May 16, 2020 - 6:37:00 AM
Last modification on : Friday, June 11, 2021 - 2:26:02 PM


  • HAL Id : hal-02601385, version 1
  • IRSTEA : PUB00044405



Nadia Carluer, Dominikus Noll, K. Bernard, A. Fontaine, Claire Lauvernet. Dimensionner les zones tampons enherbées et boisées pour réduire le transfert hydrique des produits phytosanitaires. Techniques Sciences Méthodes , ASTEE/EDP Sciences, 2014, 2014 (12), pp.101-120. ⟨hal-02601385⟩



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