0000000000744163
AUTHOR
Odile Duval
Modelling nitrous oxide emissions from cropland at the regional scale
Arable soils are a large source of nitrous oxide (N2O) emissions, making up half of the biogenic emissions worldwide. Estimating their source strength requires methods capable of capturing the spatial and temporal variability of N2O emissions, along with the effects of crop management. Here, we applied a process-based model, CERES, with geo-referenced input data on soils, weather, and land use to map N2O emissions from wheat-cropped soils in three agriculturally intensive regions in France. Emissions were mostly controlled by soil type and local climate conditions, and only to a minor extent by the doses of fertilizer nitrogen applied. As a result, the direct emission factors calculated at …
Les émissions de protoxide d'azote dans différentes situations agronomiques : mécanismes en jeu, régulation et simulation à l'échelle agronomique
National audience
Les émissions de protoxyde d'azote (N2O) d'origine agricole : évaluation au niveau du territoire français
National audience