Copper Content and Export in European Vineyard Soils Influenced by Climate and Soil Properties - Ecole Nationale du Génie de l'Eau et de l'Environnement de Strasbourg Accéder directement au contenu
Article Dans Une Revue Environmental Science and Technology Année : 2021

Copper Content and Export in European Vineyard Soils Influenced by Climate and Soil Properties

Boris Droz
José Antonio Rodríguez Martín
Gergely Tóth
  • Fonction : Auteur
Panos Panagos
Luca Montanarella
  • Fonction : Auteur
Pasquale Borrelli
Gwenael Imfeld
José Antonio
  • Fonction : Auteur
Rodríguez Martín
  • Fonction : Auteur

Résumé

Copper-based fungicides (Cu f) are used in European (EU) vineyards to prevent fungal diseases. Soil physicochemical properties govern locally the variation of total copper content (Cu t) in EU vineyards. However, variables controlling Cu t distribution at larger scale are poorly known. Here machine learning techniques were used to identify governing variables and to predict the Cu t distribution in EU vineyards. Precipitation, aridity and soil organic carbon are key variables explaining together 45% of Cu t distribution across EU vineyards. This underlines the effect of both climate and soil properties on Cu t distribution. The average net export of Cu at the EU scale is 0.29 kg Cu ha-1 which is two orders of magnitude less than the net accumulation of Cu (24.8 kg Cu ha-1). Four scenarios of Cu f application were compared. The current EU regulation with a maximum of 4 kg Cu ha-1 year-1 may increase by 2% the EU vineyard area exceeding the predicted no-effect concentration (PNEC) in soil in the next 100 years. Overall, our results highlight vineyard areas requiring specific remediation measures and strategies of Cu f use to manage a trade-off between pest control and soil and water contamination.
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Dates et versions

hal-03378939 , version 1 (18-10-2021)

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Boris Droz, Sylvain Payraudeau, José Antonio Rodríguez Martín, Gergely Tóth, Panos Panagos, et al.. Copper Content and Export in European Vineyard Soils Influenced by Climate and Soil Properties. Environmental Science and Technology, 2021, 55 (11), pp.7327-7334. ⟨10.1021/acs.est.0c02093⟩. ⟨hal-03378939⟩
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