Claire Delon
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View article: Influence of biogenic NO emissions from soil on atmospheric chemistry over Africa: a regional modelling study
Influence of biogenic NO emissions from soil on atmospheric chemistry over Africa: a regional modelling study Open
In the context of climate change and increasing anthropogenic pressures in Africa, understanding the interactions between atmospheric chemistry, regional climate, and biogeochemical cycles is critical. This study investigates the potential…
View article: Drivers and CO <sub>2</sub> flux budgets in a Sahelian Faidherbia albida agro-silvo-pastoral parkland: Insights from continuous high-frequency soil chamber measurements and Eddy Covariance
Drivers and CO <sub>2</sub> flux budgets in a Sahelian Faidherbia albida agro-silvo-pastoral parkland: Insights from continuous high-frequency soil chamber measurements and Eddy Covariance Open
Agroforestry systems — combining trees with crops and/or livestock — are increasingly promoted as sustainable and climate-resilient land-use strategies. Despite their widespread presence in the Sahel, experimental data on their potential a…
View article: Impact of wet nitrogen deposition on soil nitrogen emissions in West African ecosystems
Impact of wet nitrogen deposition on soil nitrogen emissions in West African ecosystems Open
Human activities such as fertilization of agricultural lands and human-induced biomass burning strongly impact nitrogen (N) dynamics and losses, with many consequences on the environment. The quantification of N budgets (N inputs and outpu…
View article: Influence of biogenic NO emissions from soil on Atmospheric chemistry over Africa: a regional modelling study
Influence of biogenic NO emissions from soil on Atmospheric chemistry over Africa: a regional modelling study Open
In the context of climate change and increasing anthropogenic pressures in Africa, understanding the interactions between atmospheric chemistry, regional climate, and biogeochemical cycles is critical. This study investigates the potential…
View article: Measurement report: Long-term measurements of surface ozone and trends in semi-natural sub-Saharan African ecosystems
Measurement report: Long-term measurements of surface ozone and trends in semi-natural sub-Saharan African ecosystems Open
For nearly 30 years, the International Network to study Deposition and Atmospheric chemistry in AFrica (INDAAF) programme has measured surface ozone from 14 sites in Africa representative of the main African ecosystems: dry savannas (Baniz…
View article: Modelling CO <sub>2</sub> and N <sub>2</sub> O emissions from soils in silvopastoral systems of the West African Sahelian band
Modelling CO <sub>2</sub> and N <sub>2</sub> O emissions from soils in silvopastoral systems of the West African Sahelian band Open
Silvopastoral systems (SPSs) have been shown to improve ecosystem resilience and provide sustainable land management solutions in the Sahel. However, accurately estimating the contribution of Sahelian ecosystems to the overall greenhouse g…
View article: Comment on egusphere-2024-284
Comment on egusphere-2024-284 Open
Abstract. In the framework of the International Network to study Deposition and Atmospheric chemistry in Africa (INDAAF) program, we present the seasonal variability of atmospheric ozone concentrations at the regional scale. The contributi…
View article: Comment on egusphere-2024-284
Comment on egusphere-2024-284 Open
Abstract. In the framework of the International Network to study Deposition and Atmospheric chemistry in Africa (INDAAF) program, we present the seasonal variability of atmospheric ozone concentrations at the regional scale. The contributi…
View article: Measurement report: Long-term measurements of ozone concentrations in semi-natural African ecosystems
Measurement report: Long-term measurements of ozone concentrations in semi-natural African ecosystems Open
In the framework of the International Network to study Deposition and Atmospheric chemistry in Africa (INDAAF) program, we present the seasonal variability of atmospheric ozone concentrations at the regional scale. The contributions of loc…
View article: Modelling CO2 and N2O emissions from a tropical semi-arid parkland cultivated with groundnut and millet
Modelling CO2 and N2O emissions from a tropical semi-arid parkland cultivated with groundnut and millet Open
Agriculture contributes to climate changes through land use changes and greenhouse gas emissions. Models can provide crucial insights into the extent of this contribution; however, their effectiveness relies on proper evaluation within the…
View article: Comment on egusphere-2023-2452
Comment on egusphere-2023-2452 Open
Abstract. Silvopastoral systems (SPSs) have been shown to improve ecosystem resilience and provide sustainable land management solutions in the Sahel. However, accurately estimating the contribution of Sahelian ecosystems to the overall gr…
View article: Modelling CO <sub>2</sub> and N <sub>2</sub> O emissions from soils in silvopastoral systems of the West-African Sahelian band
Modelling CO <sub>2</sub> and N <sub>2</sub> O emissions from soils in silvopastoral systems of the West-African Sahelian band Open
Silvopastoral systems (SPSs) have been shown to improve ecosystem resilience and provide sustainable land management solutions in the Sahel. However, accurately estimating the contribution of Sahelian ecosystems to the overall greenhouse g…
View article: To what extent are greenhouse-gas emissions offset by trees in a Sahelian silvopastoral system?
To what extent are greenhouse-gas emissions offset by trees in a Sahelian silvopastoral system? Open
International audience
View article: Soil CO2 and N2O emissions in Sahelian Silvopastoral systems: spatial distribution and annual budget estimation
Soil CO2 and N2O emissions in Sahelian Silvopastoral systems: spatial distribution and annual budget estimation Open
Silvopastoral systems (SPS) are one of the most common livestock production systems in the Sahel. They are composed of a mix of trees, pastures, and livestock in the same area. Known for providing several beneficial services compared to tr…
View article: Nitrogen budget and critical load determination at a Sahelian grazed grassland site
Nitrogen budget and critical load determination at a Sahelian grazed grassland site Open
Based on rare and original in situ measurements together with published data, we estimate a complete nitrogen (N) budget for a semi-arid Sahelian grazed grassland located in Dahra (Senegal) in 2014 and 2017. Nitrogen inputs include biologi…
View article: Using UAV and geostatistics to upscale crop yield in heterogeneous agro-silvo-pastoral system
Using UAV and geostatistics to upscale crop yield in heterogeneous agro-silvo-pastoral system Open
<p>The beneficial effect of <em>Faidherbia albida</em> on the yield of certain associated crops has been demonstrated for long and is often characterized by a distance-decay pattern. While several approaches have tested t…
View article: Modeling Greenhouse Gas Emissions from Sahelian Sylvo-pastoral Ecosystems
Modeling Greenhouse Gas Emissions from Sahelian Sylvo-pastoral Ecosystems Open
Earth and Space Science Open Archive PosterOpen AccessYou are viewing the latest version by default [v1]Modeling Greenhouse Gas Emissions from Sahelian Sylvo-pastoral EcosystemsAuthorsYélognissèAgbohessouiDClaireDelonManuelaGrippaEricMougi…
View article: Corrigendum to “Source contributions in precipitation chemistry and analysis of atmospheric nitrogen deposition in a Sahelian dry savanna site in West Africa” [Atmospheric Research Volume 251, 1 April 2021, 105423]
Corrigendum to “Source contributions in precipitation chemistry and analysis of atmospheric nitrogen deposition in a Sahelian dry savanna site in West Africa” [Atmospheric Research Volume 251, 1 April 2021, 105423] Open
International audience
View article: Towards improved N2O budgets estimation from 10 site-years measurement and analysis of key drivers
Towards improved N2O budgets estimation from 10 site-years measurement and analysis of key drivers Open
<p>Agriculture represents 14% of global anthropogenic greenhous gases (GHG) emissions, 46% of this amount being due to N<sub>2</sub>O emissions from soils (UNEP, 2012). N<sub>2</sub>O is a powerful GHG (IPCC, …
View article: Dominant contribution of nitrogen compounds in precipitation chemistry in the Lake Victoria catchment (East Africa)
Dominant contribution of nitrogen compounds in precipitation chemistry in the Lake Victoria catchment (East Africa) Open
This work provides a complete chemical characterization of rains collected in the tropical rural site of Mbita (Kenya) on the shores of Lake Victoria (annual rainfall 1259.3 mm). We present a wet nitrogen deposition budget including inorga…
View article: Source contributions in precipitation chemistry and analysis of atmospheric nitrogen deposition in a Sahelian dry savanna site in West Africa
Source contributions in precipitation chemistry and analysis of atmospheric nitrogen deposition in a Sahelian dry savanna site in West Africa Open
Experimental data on precipitation chemistry were collected at a semi-arid savanna in Senegal (Dahra) in 2013, 2014 and 2017. The chemical composition of precipitation was analyzed for inorganic and organic ions, using ionic chromatography…
View article: Long-term atmospheric inorganic nitrogen deposition in West African savanna over 16 year period (Lamto, Côte d’Ivoire)
Long-term atmospheric inorganic nitrogen deposition in West African savanna over 16 year period (Lamto, Côte d’Ivoire) Open
We present a long term assessment trend of atmospheric inorganic nitrogen deposition in Sub Saharan Africa (2000–2015) using observational and model data. This work proposes a compilation of International Network to study Deposition and At…