Skip to Main content Skip to Navigation
Journal articles

Nitrogen-rich organic soils under warm well-drained conditions are global nitrous oxide emission hotspots

Jaan Parn 1, 2 Jos T A Verhoeven 3 Klaus Butterbach-Bahl 4 Nancy B Dise 5 Sami Ullah 2 Anto Aasa 1 Sergey Egorov 1 Mikk Espenberg 1 Järvi Järveoja 1 Jyrki Jauhiainen 6 Kuno Kasak 1 Leif Klemedtsson 7 Ain Kull 1 Fatima Laggoun-Défarge 8, 9 Elena D Lapshina 10 Annalea Lohila 11 Krista Lõhmus 12 Martin Maddison 1 William J Mitsch Christoph Müller Ülo Niinemets 13 Bruce Osborne 14 Taavi Pae 1 Jüri-Ott Salm 15 Fotis Sgouridis 16 Kristina Sohar 1 Kaido Soosaar 1 Kathryn Storey 17 Alar Teemusk 1 Moses M Tenywa 18 Julien Tournebize 19 Jaak Truu 1 Gert Veber 1 Jorge A Villa 20 Seint Sann Zaw 21 Ulo Mander 1 
Abstract : Nitrous oxide (N 2 O) is a powerful greenhouse gas and the main driver of stratospheric ozone depletion. Since soils are the largest source of N 2 O, predicting soil response to changes in climate or land use is central to understanding and managing N 2 O. Here we find that N 2 O flux can be predicted by models incorporating soil nitrate concentration (NO 3 −), water content and temperature using a global field survey of N 2 O emissions and potential driving factors across a wide range of organic soils. N 2 O emissions increase with NO 3 − and follow a bell-shaped distribution with water content. Combining the two functions explains 72% of N 2 O emission from all organic soils. Above 5 mg NO 3 −-N kg −1 , either draining wet soils or irrigating well-drained soils increases N 2 O emission by orders of magnitude. As soil temperature together with NO 3 − explains 69% of N 2 O emission, tropical wetlands should be a priority for N 2 O management.
Complete list of metadata

Cited literature [70 references]  Display  Hide  Download
Contributor : Nathalie POTHIER Connect in order to contact the contributor
Submitted on : Thursday, April 5, 2018 - 2:43:17 PM
Last modification on : Wednesday, August 3, 2022 - 4:04:19 AM


Publication funded by an institution




Jaan Parn, Jos T A Verhoeven, Klaus Butterbach-Bahl, Nancy B Dise, Sami Ullah, et al.. Nitrogen-rich organic soils under warm well-drained conditions are global nitrous oxide emission hotspots. Nature Communications, Nature Publishing Group, 2018, 9 (1), 8 p. ⟨10.1038/s41467-018-03540-1⟩. ⟨insu-01759495⟩



Record views


Files downloads