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Forest canopy mitigates soil N2O emission during hot moments
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SYSNO ASEP 0544262 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Forest canopy mitigates soil N2O emission during hot moments Author(s) Mander, Ülo (UEK-B) RID, SAI, ORCID
Krasnova, A. (EE)
Escuer-Gatius, J. (EE)
Espenberg, M. (EE)
Schindler, Thomas (UEK-B) SAI, RID, ORCID
Macháčová, Kateřina (UEK-B) RID, ORCID, SAI
Pärn, J. (EE)
Maddison, M. (EE)
Megonigal, J. P. (US)
Pihlatie, M. (FI)
Kasak, K. (EE)
Niinemets, Ü. (EE)
Junninen, H. (FI)
Soosaar, Kaido (UEK-B) SAI, ORCIDNumber of authors 14 Article number 39 Source Title n p j Climate and Atmospheric Science. - : Nature Publishing Group - ISSN 2397-3722
Roč. 4, č. 1 (2021)Number of pages 9 s. Language eng - English Country DE - Germany Keywords nitrous-oxide emissions ; greenhouse-gas emissions ; eddy-covariance ; flux measurements ; temperate forest ; carbon-dioxide ; water ; exchange ; methane ; no Subject RIV EF - Botanics OECD category Plant sciences, botany R&D Projects GJ17-18112Y GA ČR - Czech Science Foundation (CSF) EF16_019/0000797 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Research Infrastructure CzeCOS III - 90123 - Ústav výzkumu globální změny AV ČR, v. v. i. Method of publishing Open access Institutional support UEK-B - RVO:86652079 UT WOS 000673527100001 EID SCOPUS 85110629197 DOI 10.1038/s41612-021-00194-7 Annotation Riparian forests are known as hot spots of nitrogen cycling in landscapes. Climate warming speeds up the cycle. Here we present results from a multi-annual high temporal-frequency study of soil, stem, and ecosystem (eddy covariance) fluxes of N2O from a typical riparian forest in Europe. Hot moments (extreme events of N2O emission) lasted a quarter of the study period but contributed more than half of soil fluxes. We demonstrate that high soil emissions of N2O do not escape the ecosystem but are processed in the canopy. Rapid water content change across intermediate soil moisture was a major determinant of elevated soil emissions in spring. The freeze-thaw period is another hot moment. However, according to the eddy covariance measurements, the riparian forest is a modest source of N2O. We propose photochemical reactions and dissolution in canopy-space water as reduction mechanisms. Workplace Global Change Research Institute Contact Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268 Year of Publishing 2022 Electronic address https://www.nature.com/articles/s41612-021-00194-7
Number of the records: 1