Using biophysical models to manage nitrogen pollution from agricultural sources: Utopic or realistic approach for non-scientist users? Case study of a drinking water catchment area in Lorraine, France

Abstract : The objectives of this comparison of two biophysical models of nitrogen losses were to evaluate first whether results were similar and second whether both were equally practical for use by non-scientist users. Results were obtained with the crop model STICS and the environmental model AGRIFLUX based on nitrogen loss simulations across a small groundwater catchment area (<1 km(2)) located in the Lorraine region in France. Both models simulate the influences of leaching and cropping systems on nitrogen losses in a relevant manner. The authors conclude that limiting the simulations to areas where soils with a greater risk of leaching cover a significant spatial extent would likely yield acceptable results because those soils have more predictable leaching of nitrogen. In addition, the choice of an environmental model such as AGRIFLUX which requires fewer parameters and input variables seems more user-friendly for agro-environmental assessment. The authors then discuss additional challenges for non-scientists such as lack of parameter optimization, which is essential to accurately assessing nitrogen fluxes and indirectly not to limit the diversity of uses of simulated results. Despite current restrictions, with some improvement, biophysical models could become useful environmental assessment tools for non-scientists.
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Article dans une revue
Journal of Environmental Management, Elsevier, 2016, 183 (1), pp.260-274. 〈10.1016/j.jenvman.2016.08.050〉
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https://hal.univ-lorraine.fr/hal-01477460
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Soumis le : lundi 27 février 2017 - 14:04:01
Dernière modification le : jeudi 30 août 2018 - 12:32:17

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Pierre-Yves Bernard, Marc Benoit, Jean Roger-Estrade, Sylvain Plantureux. Using biophysical models to manage nitrogen pollution from agricultural sources: Utopic or realistic approach for non-scientist users? Case study of a drinking water catchment area in Lorraine, France. Journal of Environmental Management, Elsevier, 2016, 183 (1), pp.260-274. 〈10.1016/j.jenvman.2016.08.050〉. 〈hal-01477460〉

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