|Title:||Comparing and evaluating pesticide leaching models : results for the Tor Mancina data set (Italy)|
|Authors :||Francaviglia, R.|
|Published in :||Agricultural Water Management|
|Publisher / Ed. Institution :||Elsevier|
|License (according to publishing contract) :||Licence according to publishing contract|
|Type of review:||Peer review (Publication)|
|Subjects :||Pesticide; Transport; Soil|
|Subject (DDC) :||630: Agriculture|
|Abstract:||This paper describes the results of an evaluation of pesticide leaching modelling, using data collected on four lysimeters in Italy. The experimental data were collected during a 3 year period at Tor Mancina (Rome, Italy), on a clay-loam calcareous soil. Monitored variables are the soil water drainage, the bromide leaching and the metolachlor leaching. Two different irrigation schedules were considered in the experimental design. The models inadequately described the monitored breakthrough of water, bromide and pesticide. Poor modelling performance was firstly attributed to an inappropriate model structure, poorly representing the specific conditions of Mediterranean soils. In particular, the models did not allow to represent correctly the preferential flow that was observed during some of the flow events. Secondly, deficiencies were identified in the calibration procedures, and the application of a well defined modelling practice. The lack of such a good modelling practice induced user subjectivity in the estimation of the model parameters, which had an impact on the modelling results.|
|Departement:||School of Engineering|
|Organisational Unit:||Institute of Data Analysis and Process Design (IDP)|
|Publication type:||Article in scientific Journal|
|Appears in Collections:||Publikationen School of Engineering|
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