Pärn, J, Verhoeven, JTA, Butterbach-Bahl, K, Dise, NB, Ullah, S, Aasa, A, Egorov, S, Espenberg, M, Järveoja, J, Jauhiainen, J, Kasak, K, Klemedtsson, L, Kull, A, Laggoun-Défarge, F, Lapshina, ED, Lohila, A, Lõhmus, K, Maddison, M, Mitsch, WJ, Müller, C, Niinemets, Ü, Osborne, B, Pae, T, Salm, J-O, Sgouridis, F, Sohar, K, Soosaar, K, Storey, K, Teemusk, A, Tenywa, MM, Tournebize, J, Truu, J, Veber, G, Villa, JA, Zaw, SS and Mander, Ü (2018) Nitrogen-rich organic soils under warm well-drained conditions are global nitrous oxide emission hotspots. Nature Communications, 9 (1). 1135 -1135. ISSN 2041-1723

[thumbnail of 05042018_s41467-018-03540-1.pdf]
05042018_s41467-018-03540-1.pdf - Published Version
Available under License Creative Commons Attribution.

Download (1MB) | Preview


Nitrous oxide (N2O) is a powerful greenhouse gas and the main driver of stratospheric ozone depletion. Since soils are the largest source of N2O, predicting soil response to changes in climate or land use is central to understanding and managing N2O. Here we find that N2O flux can be predicted by models incorporating soil nitrate concentration (NO3-), water content and temperature using a global field survey of N2O emissions and potential driving factors across a wide range of organic soils. N2O emissions increase with NO3-and follow a bell-shaped distribution with water content. Combining the two functions explains 72% of N2O emission from all organic soils. Above 5 mg NO3--N kg-1, either draining wet soils or irrigating well-drained soils increases N2O emission by orders of magnitude. As soil temperature together with NO3-explains 69% of N2O emission, tropical wetlands should be a priority for N2O management.

Item Type: Article
Additional Information: This is the final published version of the article (version of record). It first appeared online via Nature at http://dx.doi.org/10.1038/s41467-018-03540-1 - please refer to any applicable terms of use of the publisher.
Subjects: G Geography. Anthropology. Recreation > GB Physical geography
Divisions: Faculty of Natural Sciences > School of Geography, Geology and the Environment
Related URLs:
Depositing User: Symplectic
Date Deposited: 05 Apr 2018 13:42
Last Modified: 11 May 2018 14:38
URI: https://eprints.keele.ac.uk/id/eprint/4720

Actions (login required)

View Item
View Item