Search

Your search keyword '"Génermont, S."' showing total 33 results
Start Over Author "Génermont, S."
33 results on '"Génermont, S."'

3. Improvement of emission factors

Author

Theloke, J., Steinbrecher, R., Smiatek, G., Friedrich, R., Winiwarter, W., Sjödin, Å., Sturm, P. J., Hausberger, S., Török, S., Osán, J., Falkenberg, G., Pregger, T., Asman, W., Hutchings, N., Sommer, S., Andersen, J., Münier, B., Génermont, S., Cellier, P., Mittermaier, B., Schmitz, T., Hassel, D., Weber, F.-J., Klemp, D., Friedrich, Rainer, editor, and Reis, Stefan, editor

Published
2004
Full Text
View/download PDF

4. Biosphere-atmosphere interactions of ammonia with grasslands: Experimental strategy and results from a new European initiative

Author

Sutton, M.A., Milford, C., Nemitz, E., Theobald, M.R., Hill, P.W., Fowler, D., Schjoerring, J.K., Mattsson, M.E., Nielsen, K.H., Husted, S., Erisman, J.W., Otjes, R., Hensen, A., Mosquera, J., Cellier, P., Loubet, B., David, M., Genermont, S., Neftel, A., Blatter, A., Herrmann, B., Jones, S.K., Horvath, L., Führer, E.C., Mantzanas, K., Koukoura, Z., Gallagher, M., Williams, P., Flynn, M., and Riedo, M.

Published
2001

18. Emissions of Ammonia.

Author

Asman, W., Hutchings, N., Sommer, S., Andersen, J., Münier, B., Génermont, S., and Cellier, P.

Abstract

The article discusses the processes of ammonia emission and the development of such emission inventories. Ammonia emission is said to originate from agricultural and natural sources. Because of excessive deposition of nitrogen compounds to the ecosystems, its effects can lead to soil acidification and eutrophication. A table is presented that shows an overview of the global ammonia emissions from animal husbandry, fertilizers and agricultural crops. In addition, a framework for the calculation of ammonia emissions in Europe is presented.

Published
2004

22. Investigating the stomatal, cuticular and soil ammonia fluxes over a growing tritical crop under high acidic loads.

Author

Loubet, B., Decuq, C., Personne, E., Massad, R. S., Flechard, C., Fanucci, O., Mascher, N., Gueudet, J.-C., Masson, S., Durand, B., Génermont, S., Fauvel, Y., and Cellier, P.

Subjects
CROP growth, CROPS & soils, AMMONIA, TRITICALE, AMMONIUM nitrate, ACID-forming emissions, PLANT canopies, TEMPERATURE effect, BIOTIC communities
Abstract

Ammonia concentration and fluxes were measured above a growing triticale field for two months during May and June 2010 at the NitroEurope crop site in Grignon (Fr-Gri) near Paris, France. The measurement campaign started 15 days following a 40 kg N ha-1 application of an ammonium nitrate solution. A new mini-WEDD (Wet Effluent Denuder) flow injection analyser with three channels (ROSAA, RObust and Sensitive Ammonia Analyser) was used to measure NH3 fluxes using the aerodynamic gradient method. The measured ammonia concentrations varied from 0.01 to 39 µg NH3 m-3 and were largely influenced by advection from the nearby farm. The ammonia fluxes ranged from -560 to 220 ng NH3 m-2 s-1 and averaged 29 ng NH3 m-2 s-1. During some periods the large deposition fluxes could only be explained by a very small surface resistance, which may be due to the high concentrations in certain acid gases (HNO3 and SO2) observed in this suburban area. Ammonia emissions were also measured occasionally. The canopy compensation point Cc was around 1.5 µg NH3 m-3 on average. The canopy emission potential Γc (Cc normalised for the temperature response of the Henry equilibrium) decreased over the course of the measurement campaign from Γc = 2200 to Γc = 450, the latter value being close to the median stomatal emission potential (Γs) for managed ecosystems reported in the literature. The temporal dynamics of the measured NH3 flux compared well with the Surfatm-NH3 model using fitted parameters. The subjectivity of the model fitting is discussed based on a sensitivity analysis. [ABSTRACT FROM AUTHOR]

Published
2011
Full Text
View/download PDF

23. Mesures des concentrations et des flux de polluants atmosphériques

Author

Benjamin Loubet, Dominique Baisnee, Mathieu Cazaunau, Audrey Fortems-Cheiney, Raluca Ciuraru, Cathy Clerbaux, Jean-Francois Doussin, Gaelle Dufour, Cristian Focsa, George, C., Valérie Gros, Melynda Hassouna, Jean Luc Jaffrezo, Julien Kammer, Patricia Laville, Wahid Mellouki, Maurice Millet, Denis Petitprez, Etienne Quivet, Nathalie Redon, Roland Sarda-Estève, Stéphane Sauvage, Gaëlle UZU, Eric Villenave, Nora Zannoni, Ecologie fonctionnelle et écotoxicologie des agroécosystèmes (ECOSYS), AgroParisTech-Université Paris-Saclay-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Laboratoire Interuniversitaire des Systèmes Atmosphériques (LISA (UMR_7583)), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), TROPO - LATMOS, Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 (PhLAM), Université de Lille-Centre National de la Recherche Scientifique (CNRS), Institut de recherches sur la catalyse et l'environnement de Lyon (IRCELYON), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Sol Agro et hydrosystème Spatialisation (SAS), Institut National de la Recherche Agronomique (INRA)-AGROCAMPUS OUEST, Institut des Géosciences de l’Environnement (IGE), Institut de Recherche pour le Développement (IRD)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Institut de Combustion, Aérothermique, Réactivité et Environnement (ICARE), Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut des Sciences de l'Ingénierie et des Systèmes (INSIS), Institut de chimie et procédés pour l'énergie, l'environnement et la santé (ICPEES), Université de Strasbourg (UNISTRA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et nanosciences d'Alsace (FMNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Physicochimie des Processus de Combustion et de l’Atmosphère - UMR 8522 (PC2A), Laboratoire Chimie de l'environnement (LCE), Aix Marseille Université (AMU)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Ecole nationale supérieure Mines-Télécom Lille Douai (IMT Lille Douai), Institut Mines-Télécom [Paris] (IMT), Environnements et Paléoenvironnements OCéaniques (EPOC), Observatoire aquitain des sciences de l'univers (OASU), Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Bedos, C., Génermont, S., Castell, J.F., Cellier, P., Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut des Sciences de l'Ingénierie et des Systèmes (INSIS - CNRS), Université de Strasbourg (UNISTRA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École Pratique des Hautes Études (EPHE), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Sorbonne Université (SU)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut de Recherche pour le Développement (IRD)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Université de Strasbourg (UNISTRA)-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU)-Institut de Chimie du CNRS (INC), and Durivault, Anaïs

Subjects
[SDE] Environmental Sciences, [SDE]Environmental Sciences
Published
2019

24. Réduire l’impact de l’agriculture sur la qualité de l’air

Author

Pierre Cellier, Sophie Génermont, Antoine Pierart, Sophie Agasse, Jean-Louis Drouet, Nadège Edouard, Thomas Eglin, Laurence Galsomiès, Nadine Guingand, Benjamin Loubet, Isabelle Roussel, Durivault, Anaïs, Bedos, C., Génermont, S., Castell, J.F., Cellier, P., Ecologie fonctionnelle et écotoxicologie des agroécosystèmes (ECOSYS), Institut National de la Recherche Agronomique (INRA)-AgroParisTech, Agence de l'Environnement et de la Maîtrise de l'Energie (ADEME), Assemblée Permanente des Chambres d'Agriculture (APCA), Physiologie, Environnement et Génétique pour l'Animal et les Systèmes d'Elevage [Rennes] (PEGASE), Institut National de la Recherche Agronomique (INRA)-AGROCAMPUS OUEST, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Institut du Porc (IFIP), Université de Lille, Sciences et Technologies, AGROCAMPUS OUEST, and Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de la Recherche Agronomique (INRA)

Subjects
[SDV.SA]Life Sciences [q-bio]/Agricultural sciences, [SDE] Environmental Sciences, [SDE.MCG] Environmental Sciences/Global Changes, [SDV.SA] Life Sciences [q-bio]/Agricultural sciences, [SDE.MCG]Environmental Sciences/Global Changes, [SDE]Environmental Sciences, [SDE.ES] Environmental Sciences/Environmental and Society, [SDE.ES]Environmental Sciences/Environmental and Society
Published
2019

25. Agriculture et qualité de l’air : éléments de mise en contexte

Author

Pierre Cellier, Carole Bedos, Jean-François Castell, Sophie Génermont, Ecologie fonctionnelle et écotoxicologie des agroécosystèmes (ECOSYS), Institut National de la Recherche Agronomique (INRA)-AgroParisTech, Bedos, C., Génermont, S., Castell, J.F., Cellier, P., and Durivault, Anaïs

Subjects
[SDE] Environmental Sciences, [SDV.SA]Life Sciences [q-bio]/Agricultural sciences, [SDE.MCG] Environmental Sciences/Global Changes, [SDV.SA] Life Sciences [q-bio]/Agricultural sciences, [SDE.MCG]Environmental Sciences/Global Changes, [SDE]Environmental Sciences

26. Mécanismes : échanges de polluants aux interfaces sol-végétation-atmosphère et devenir dans l’atmosphère

Author

Sébastien Saint-Jean, Carole Bedos, Raluca Ciuraru, Sophie Génermont, Laurent Huber, Juliette Lathiere, Benjamin Loubet, Raia Silvia Massad, Patrick Stella, Andrée Tuzet, Eric Villenave, Ecologie fonctionnelle et écotoxicologie des agroécosystèmes (ECOSYS), Institut National de la Recherche Agronomique (INRA)-AgroParisTech, Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Sciences pour l'Action et le Développement : Activités, Produits, Territoires (SADAPT), AgroParisTech-Université Paris-Saclay-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Environnements et Paléoenvironnements OCéaniques (EPOC), Observatoire aquitain des sciences de l'univers (OASU), Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Bedos, C., Génermont, S., Castell, J.F., Cellier, P., Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École Pratique des Hautes Études (EPHE), and Durivault, Anaïs

Subjects
[SDE] Environmental Sciences, [SDE.MCG] Environmental Sciences/Global Changes, [SDE.MCG]Environmental Sciences/Global Changes, [SDE]Environmental Sciences
Abstract

International audience

27. Les principaux polluants et leurs impacts sur l’agriculture, les écosystèmes et la santé

Author

Jean-François Castell, Juliette Faburé, Valérie Pernelet-Joly, Juliette Lathiere, Laurent Huber, Ecologie fonctionnelle et écotoxicologie des agroécosystèmes (ECOSYS), Institut National de la Recherche Agronomique (INRA)-AgroParisTech, Agence Française de Sécurité Sanitaire de l'Environnement et du Travail (AFSSET), AFSSET, Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Bedos, C., Génermont, S., Castell, J.F., Cellier, P., and Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDV.EE]Life Sciences [q-bio]/Ecology, environment, [SDV.SA]Life Sciences [q-bio]/Agricultural sciences, [SDE]Environmental Sciences

28. Modélisation des échanges : de l’échelle des processus aux échelles régionales

Author

Raia Silvia Massad, Andree Tuzet, Erwan Personne, Carole Bedos, Matthias Beekmann, Isabelle Coll, Jean-Louis Drouet, Audrey Fortems-Cheiney, Sophie Genermont, Benjamin Loubet, Sébastien Saint-Jean, Durivault, Anaïs, Bedos, C., Génermont, S., Castell, J.F., Cellier, P., Ecologie fonctionnelle et écotoxicologie des agroécosystèmes (ECOSYS), Institut National de la Recherche Agronomique (INRA)-AgroParisTech, Laboratoire Interuniversitaire des Systèmes Atmosphériques (LISA (UMR_7583)), and Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDE] Environmental Sciences, [SDV] Life Sciences [q-bio], [SDE.MCG] Environmental Sciences/Global Changes, [SDE.MCG]Environmental Sciences/Global Changes, [SDV]Life Sciences [q-bio], [SDE]Environmental Sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

29. De nécessaires approches intégratives

Author

Raia Silvia Massad, Pierre Cellier, Carole Bedos, Juliette Lathiere, Nathalie de Noblet-Ducoudré, Paul Robin, Ecologie fonctionnelle et écotoxicologie des agroécosystèmes (ECOSYS), Institut National de la Recherche Agronomique (INRA)-AgroParisTech, Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Sol Agro et hydrosystème Spatialisation (SAS), Institut National de la Recherche Agronomique (INRA)-AGROCAMPUS OUEST, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Bedos, C., Génermont, S., Castell, J.F., Cellier, P., and Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDE.MCG]Environmental Sciences/Global Changes, [SDE]Environmental Sciences

30. Meta-modeling methods for estimating ammonia volatilization from nitrogen fertilizer and manure applications.

Author

Ramanantenasoa MMJ, Génermont S, Gilliot JM, Bedos C, and Makowski D

Subjects
Ammonia, Animals, Cattle, France, Nitrogen, Swine, Volatilization, Fertilizers, Manure
Abstract

Accurate estimations of ammonia (NH 3 ) emissions due to nitrogen (N) fertilization are required to identify efficient mitigation techniques and improve agricultural practices. Process-based models such as Volt'Air can be used for this purpose because they incorporate the effects of several key factors influencing NH 3 volatilization at fine spatio-temporal resolutions. However, these models require a large number of input variables and their implementation on a large scale requires long computation times that may restrict their use by public environmental agencies. In this study, we assess the capabilities of various types of meta-models to emulate the complex process-based Volt'Air for estimating NH 3 emission rates from N fertilizer and manure applications. Meta-models were developed for three types of fertilizer (N solution, cattle farmyard manure, and pig slurry) for four major agricultural French regions (Bretagne, Champagne-Ardenne, Ile-de-France, and Rhône-Alpes) and at the national (France) scale. The meta-models were developed from 106,092 NH 3 emissions simulated by Volt'Air in France. Their performances were evaluated by cross-validation, and the meta-models providing the best approximation of the original model were selected. The results showed that random forest and ordinary linear regression models were more accurate than generalized additive models, partial least squares regressions, and least absolute shrinkage and selection operator regressions. Better approximations of Volt'Air simulations were obtained for cattle farmyard manure (3% < relative root mean square error of prediction (RRMSEP) < 8%) than for pig slurry (17% < RRMSEP < 19%) and N solution (21% < RRMSEP < 40%). The selected meta-models included between 6 and 15 input variables related to weather conditions, soil properties and cultural practices. Because of their simplicity and their short computation time, our meta-models offer a promising alternative to process-based models for NH 3 emission inventories at both regional and national scales. Our approach could be implemented to emulate other process-based models in other countries., (Copyright © 2019 Elsevier Ltd. All rights reserved.)

Published
2019
Full Text
View/download PDF

31. A new framework to estimate spatio-temporal ammonia emissions due to nitrogen fertilization in France.

Author

Ramanantenasoa MMJ, Gilliot JM, Mignolet C, Bedos C, Mathias E, Eglin T, Makowski D, and Génermont S

Abstract

In France, agriculture is responsible for 98% of ammonia (NH 3 ) emissions with over 50% caused by nitrogen (N) fertilization. The current French national inventory is based on default emission factors (EF) and does not account for the main variables influencing NH 3 emissions. To model the spatio-temporal variability of NH 3 emissions due to mineral and organic N fertilization, we implemented a new method named CADASTRE&#95;NH 3 . The novelty lies in the combined use of two types of resources: the process-based Volt'Air model and geo-referenced and temporally explicit databases for soil properties, meteorological conditions and N fertilization. Simulation units are the Small Agricultural Regions. Several sources of information were combined to obtain N fertilization management: census and surveys of the French Ministry of Agriculture, statistics on commercial fertilizer deliveries, and French expertise on physicochemical properties of organic manure. The practical interest of this new framework was illustrated for France during the crop year 2005/06. Aggregation at crop year level showed a reasonable agreement between estimated values derived from CADASTRE&#95;NH 3 and those from the French inventory method, for N and ammoniacal-N (TAN) application rates, total NH 3 emissions and NH 3 EF. Discrepancies were large for organic manure only; national TAN application rates and NH 3 emissions were 62-63% lower with CADASTRE&#95;NH 3 . This was due to divergences in the representation of cattle farm yard manure and in the TAN:N ratio of solid manure. Annual emissions for fertilization in France were estimated to be 270 Gg NH 3 , 29% lower than the French national inventory estimate. At the regional level, organic manure contributed to 73% of field NH 3 emissions in intensive livestock husbandry areas and to 41% in the other areas. The CADASTRE&#95;NH 3 framework can be seen as a Tier 3 approach able to estimate specific regional EF for different mineral fertilizers and organic manure., (Copyright © 2018 Elsevier B.V. All rights reserved.)

Published
2018
Full Text
View/download PDF

32. Data on spatio-temporal representation of mineral N fertilization and manure N application as well as ammonia volatilization in French regions for the crop year 2005/06.

Author

Génermont S, Ramanantenasoa MMJ, Dufosse K, Maury O, Mignolet C, and Gilliot JM

Abstract

The data presented in this article are related to the research article entitled "A new framework to estimate spatio-temporal ammonia emissions due to Nitrogen fertilization in France" (Ramanantenasoa et al., 2018) but are given with more details at a regional scale (NUTS2) in the objective to get them available for other research or applied studies. They concerns (i) the data implemented in the CADASTRE&#95;NH 3 framework and (ii) the data obtained using it, for crop year 2005/06. For the source data, the article focusses on the N fertilization practice management description, as this dataset is the most difficult to collect and to analyze in the objective of realistically representing the spatial and temporal variabilities needed in the framework.

Published
2018
Full Text
View/download PDF

33. Modeling pesticide volatilization: testing the additional effect of gaseous adsorption on soil solid surfaces.

Author

Garcia L, Bedos C, Génermont S, Benoit P, Barriuso E, and Cellier P

Subjects
Adsorption, Humidity, Soil chemistry, Trifluralin chemistry, Volatilization, Water analysis, Air Pollutants analysis, Gases chemistry, Models, Chemical, Pesticides chemistry, Soil Pollutants chemistry
Abstract

Pesticide volatilization from bare soil exhibits usually a diurnal cycle with a potentially large decrease when the soil surface dries. We assume here that this decrease may be due to the increase in adsorption of gaseous pesticides to soil under dry conditions. Thus, a precise description of the change with time of water content of the soil surface and of additional process such as gaseous adsorption is required. We used the Volt'Air model: we first extended the van Genuchten curve to drier conditions and then inserted a partitioning coefficient of the pesticide between the air-filled pore space and the soil constituents. This coefficient was calculated by a quantum-chemistry-based method with a dependence on the Specific Surface Area of the soil (SSA) and Relative Humidity (RH) of the air-filled pore space. These developments were assessed by comparing with two data sets on volatilization of trifluralin applied to bare soil. The updated Volt'Air model allowed a better description of the volatilization dynamics on a diurnal cycle (increasing efficiency factor from 0.85 to 0.96 and -2.73 to 0.17 and decreasing RMSE from 146 to 78 and 353 to 168 for both scenarios) as well as the effect of a rewetting situation. Recommendations are made for further refining the description of this process together with the soil water conditions.

Published
2014
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results