Modifications to the SWAT code for modelling direct pesticide losses
Environmental Modelling & Software
Useless Arithmetic: Why Environmental Scientists Can't Predict the Future
Useless Arithmetic: Why Environmental Scientists Can't Predict the Future
A distance-based approach for action recommendation
ECML'05 Proceedings of the 16th European conference on Machine Learning
A sensor network for high frequency estimation of water quality constituent fluxes using surrogates
Environmental Modelling & Software
Use of timed automata and model-checking to explore scenarios on ecosystem models
Environmental Modelling & Software
A generic framework for scenario exercises using models applied to water-resource management
Environmental Modelling & Software
Computers and Electronics in Agriculture
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Modelling stream water pollution by herbicides in agricultural areas is a critical issue since numerous and incompletely known processes are involved. A decision-oriented model, SACADEAU-Transf, which represents water and pesticide transfer in medium-sized catchments (10-50km^2) is presented. This model aims at evaluating the effect of land use, agricultural practice and landscape on the contamination of stream water in rural catchments. The processes are represented in an easily understandable way with a moderate amount of information, producing semi-quantitative and spatialized outputs. Modelling focuses on the first few months after herbicide application when high levels of contamination are generally observed, by considering transfer through the catchment area via surface and subsurface flow. The surface flow, based on a tree plot network representation of the catchment, is controlled by soil-surface properties and saturated conditions. The subsurface flow based on Topmodel concepts is controlled by the topography. Herbicide transfer is coupled to water transfer by taking into account the main characteristics of the chemicals. The model simulates the daily water and herbicide outflow at the outlets of the farmers' fields as well as from the catchment. Preliminary results on maize herbicide transfer are presented for an agricultural catchment with an area of 17km^2 located in north-western France. The relevance of SACADEAU-Transf model is discussed in view of the qualities required for the decision-oriented models developed for improving agro-environmental management.