Articles | Volume 16, issue 9
https://doi.org/10.5194/bg-16-2049-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-16-2049-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
15 May 2019
Research article |
| 15 May 2019
| 15 May 2019
Modelling land–atmosphere daily exchanges of NO, NH3, and CO2 in a semi-arid grazed ecosystem in Senegal
Claire Delon
CORRESPONDING AUTHOR
Laboratoire d'Aérologie, Université de Toulouse, CNRS, UPS,
Toulouse, France
Corinne Galy-Lacaux
Laboratoire d'Aérologie, Université de Toulouse, CNRS, UPS,
Toulouse, France
Dominique Serça
Laboratoire d'Aérologie, Université de Toulouse, CNRS, UPS,
Toulouse, France
Erwan Personne
UMR ECOSYS, INRA, AgroParisTech, Université Paris-Saclay, 78850,
Thiverval-Grignon, France
Eric Mougin
Géosciences Environnement Toulouse, Université de Toulouse,
CNES, CNRS, IRD, UPS, Toulouse, France
Marcellin Adon
Laboratoire d'Aérologie, Université de Toulouse, CNRS, UPS,
Toulouse, France
Laboratoire de Physique de l'Atmosphère, et de Mécanique des
Fluides, Université Félix Houphouët-Boigny, Abidjan, Côte
d'Ivoire
Valérie Le Dantec
Centre d'Etudes Spatiales de le BIOsphère, Université de
Toulouse, CNES, CNRS, IRD, UPS, Toulouse, France
Benjamin Loubet
UMR ECOSYS, INRA, AgroParisTech, Université Paris-Saclay, 78850,
Thiverval-Grignon, France
Rasmus Fensholt
Department of Geosciences and Natural Resource Management, University
of Copenhagen, Copenhagen, Denmark
Torbern Tagesson
Department of Geosciences and Natural Resource Management, University
of Copenhagen, Copenhagen, Denmark
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Cited
11 citations as recorded by crossref.
- Understanding N2O Emissions in African Ecosystems: Assessments from a Semi-Arid Savanna Grassland in Senegal and Sub-Tropical Agricultural Fields in Kenya L. Bigaignon et al. 10.3390/su12218875
- SURFATM: A model for the exchanges of energy, ammonia, ozone, and pesticides between soil, vegetation, and atmosphere at the field scale E. Personne et al. 10.1016/j.simpa.2023.100600
- Nitrogen budget and critical load determination at a Sahelian grazed grassland site C. Delon et al. 10.1007/s10705-022-10220-6
- Source contributions in precipitation chemistry and analysis of atmospheric nitrogen deposition in a Sahelian dry savanna site in West Africa D. Laouali et al. 10.1016/j.atmosres.2020.105423
- To what extent are greenhouse-gas emissions offset by trees in a Sahelian silvopastoral system? Y. Agbohessou et al. 10.1016/j.agrformet.2023.109780
- Modeling gas exchange and biomass production in West African Sahelian and Sudanian ecological zones J. Rahimi et al. 10.5194/gmd-14-3789-2021
- Evaluation of interactive and prescribed agricultural ammonia emissions for simulating atmospheric composition in CAM-chem J. Vira et al. 10.5194/acp-22-1883-2022
- Modelling CO2 and N2O emissions from soils in silvopastoral systems of the West African Sahelian band Y. Agbohessou et al. 10.5194/bg-21-2811-2024
- Continental and Ecoregion‐Specific Drivers of Atmospheric NO2 and NH3 Seasonality Over Africa Revealed by Satellite Observations J. Hickman et al. 10.1029/2020GB006916
- Trends and seasonal variability in ammonia across major biomes in western and central Africa inferred from long-term series of ground-based and satellite measurements M. Ossohou et al. 10.5194/acp-23-9473-2023
- Satellite evidence of substantial rain-induced soil emissions of ammonia across the Sahel J. Hickman et al. 10.5194/acp-18-16713-2018
10 citations as recorded by crossref.
- Understanding N2O Emissions in African Ecosystems: Assessments from a Semi-Arid Savanna Grassland in Senegal and Sub-Tropical Agricultural Fields in Kenya L. Bigaignon et al. 10.3390/su12218875
- SURFATM: A model for the exchanges of energy, ammonia, ozone, and pesticides between soil, vegetation, and atmosphere at the field scale E. Personne et al. 10.1016/j.simpa.2023.100600
- Nitrogen budget and critical load determination at a Sahelian grazed grassland site C. Delon et al. 10.1007/s10705-022-10220-6
- Source contributions in precipitation chemistry and analysis of atmospheric nitrogen deposition in a Sahelian dry savanna site in West Africa D. Laouali et al. 10.1016/j.atmosres.2020.105423
- To what extent are greenhouse-gas emissions offset by trees in a Sahelian silvopastoral system? Y. Agbohessou et al. 10.1016/j.agrformet.2023.109780
- Modeling gas exchange and biomass production in West African Sahelian and Sudanian ecological zones J. Rahimi et al. 10.5194/gmd-14-3789-2021
- Evaluation of interactive and prescribed agricultural ammonia emissions for simulating atmospheric composition in CAM-chem J. Vira et al. 10.5194/acp-22-1883-2022
- Modelling CO2 and N2O emissions from soils in silvopastoral systems of the West African Sahelian band Y. Agbohessou et al. 10.5194/bg-21-2811-2024
- Continental and Ecoregion‐Specific Drivers of Atmospheric NO2 and NH3 Seasonality Over Africa Revealed by Satellite Observations J. Hickman et al. 10.1029/2020GB006916
- Trends and seasonal variability in ammonia across major biomes in western and central Africa inferred from long-term series of ground-based and satellite measurements M. Ossohou et al. 10.5194/acp-23-9473-2023
1 citations as recorded by crossref.
Latest update: 14 Dec 2024
Short summary
In the Sahel region during the wet season, CO2 and NO are released to the atmosphere, and NH3 is deposited on the soil. During the dry season, processes are strongly reduced. This paper shows the temporal variation in these soil–atmosphere exchanges of trace gases for 2 years, their sharp increase when the first rains fall onto dry soils, and how microbial processes are involved. We use a modelling approach, which is necessary when continuous measurements are not possible in remote regions.
In the Sahel region during the wet season, CO2 and NO are released to the atmosphere, and NH3 is...
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