title: Sequential use of the STICS crop model and of the MACRO pesticide fate model to simulate pesticides leaching in cropping systems.
abstract: The current challenge in sustainable agriculture is to introduce new cropping systems to reduce pesticides use in order to reduce ground and surface water contamination. However, it is difficult to carry out in situ experiments to assess the environmental impacts of pesticide use for all possible combinations of climate, crop, and soils; therefore, in silico tools are necessary. The objective of this work was to assess pesticides leaching in cropping systems coupling the performances of a crop model (STICS) and of a pesticide fate model (MACRO). STICS-MACRO has the advantage of being able to simulate pesticides fate in complex cropping systems and to consider some agricultural practices such as fertilization, mulch, or crop residues management, which cannot be accounted for with MACRO. The performance of STICS-MACRO was tested, without calibration, from measurements done in two French experimental sites with contrasted soil and climate properties. The prediction of water percolation and pesticides concentrations with STICS-MACRO was satisfactory, but it varied with the pedoclimatic context. The performance of STICS-MACRO was shown to be similar or better than that of MACRO. The improvement of the simulation of crop growth allowed better estimate of crop transpiration therefore of water balance. It also allowed better estimate of pesticide interception by the crop which was found to be crucial for the prediction of pesticides concentrations in water. STICS-MACRO is a new promising tool to improve the assessment of the environmental risks of pesticides used in cropping systems.
authors.affiliation: UMR ECOSYS, INRA, AgroParisTech, Université Paris-Saclay, 78850, Thiverval-Grignon, France.
authors.forename: Sabine-Karen
authors.initials: SK
authors.lastname: Lammoglia
authors.affiliation: Department of Soil and Environment, Swedish University of Agricultural Sciences, 750 07, Uppsala, Sweden.
authors.forename: Julien
authors.initials: J
authors.lastname: Moeys
authors.affiliation: UMR ECOSYS, INRA, AgroParisTech, Université Paris-Saclay, 78850, Thiverval-Grignon, France.
authors.forename: Enrique
authors.initials: E
authors.lastname: Barriuso
authors.affiliation: Department of Soil and Environment, Swedish University of Agricultural Sciences, 750 07, Uppsala, Sweden.
authors.forename: Mats
authors.initials: M
authors.lastname: Larsbo
authors.affiliation: UMR ECOSYS, INRA, AgroParisTech, Université Paris-Saclay, 78850, Thiverval-Grignon, France.|IRNASA-CSIC, 40-52 Cordel de Merinas, 37008, Salamanca, Spain.
authors.forename: Jesús-María
authors.initials: JM
authors.lastname: Marín-Benito
authors.affiliation: UMR AGIR, INRA, Auzeville, 31326, Castanet-Tolosan, France.
authors.forename: Eric
authors.initials: E
authors.lastname: Justes
authors.affiliation: Université de Toulouse, INP-Ecole d'ingénieurs de Purpan, UMR AGIR, 75 voie du TOEC, 31076, Toulouse, France.
authors.forename: Lionel
authors.initials: L
authors.lastname: Alletto
authors.affiliation: Université Bourgogne Franche-Comté, AgroSup Dijon, UMR Agroécologie, 26 bd Dr Petitjean, 21079, Dijon, France.
authors.forename: Marjorie
authors.initials: M
authors.lastname: Ubertosi
authors.affiliation: Université Bourgogne Franche-Comté, AgroSup Dijon, UMR Agroécologie, 26 bd Dr Petitjean, 21079, Dijon, France.
authors.forename: Bernard
authors.initials: B
authors.lastname: Nicolardot
authors.affiliation: UMR Agroécologie, INRA, 17 rue Sully, 21065, Dijon, France.
authors.forename: Nicolas
authors.initials: N
authors.lastname: Munier-Jolain
authors.affiliation: UMR ECOSYS, INRA, AgroParisTech, Université Paris-Saclay, 78850, Thiverval-Grignon, France. laure.mamy@versailles.inra.fr.
authors.forename: Laure
authors.initials: L
authors.lastname: Mamy
mesh_terms: D000383:Agriculture / Q000379:methods*; D002980:Climate; D018556:Crops, Agricultural / Q000254:growth & development*; D005602:France; D008962:Models, Theoretical; D010575:Pesticides / Q000032:analysis*; D012987:Soil / Q000737:chemistry; D012989:Soil Pollutants / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D010575:Pesticides; D012987:Soil; D012989:Soil Pollutants; D014874:Water Pollutants, Chemical
keywords: Agricultural practices; Cropping systems; MACRO; Modelling; Pesticides; STICS