caa a22 4500 605517312 CHVBK 20210128100719.0 cr unu---uuuuu 210128e20151201xx s 000 0 eng 10.1007/s10533-015-0166-4 doi (NATIONALLICENCE)springer-10.1007/s10533-015-0166-4 The importance of abiotic reactions for nitrous oxide production [Elektronische Daten] [Xia Zhu-Barker, Amanda Cavazos, Nathaniel Ostrom, William Horwath, Jennifer Glass] The continuous rise of atmospheric nitrous oxide (N2O) is an environmental issue of global concern. In biogeochemical studies, N2O production is commonly assumed to arise solely from enzymatic reactions in microbes and fungi. However, iron, manganese and organic compounds readily undergo redox reactions with intermediates in the nitrogen cycle that produce N2O abiotically under relevant environmental conditions at circumneutral pH. Although these abiotic N2O production pathways have been known to occur for close to a century, they are often neglected in modern ecological studies. In this Synthesis and Emerging Ideas paper, we highlight the defining characteristics, environmental controls, and isotopic signatures of abiotic reactions between nitrogen cycle intermediates (hydroxylamine, nitric oxide, and nitrite), redox-active metals (iron and manganese) and organic matter (humic and fulvic acids) that can lead to N2O production. We also discuss the emerging idea that abiotic reactions coupled to biotic processes have widespread ecological relevance and encourage consideration of abiotic production mechanisms in future biogeochemical investigations of N2O cycling. Springer International Publishing Switzerland, 2015 Nitrous oxide nationallicence Iron nationallicence Manganese nationallicence Soils nationallicence Redox nationallicence Metals nationallicence Isotopes nationallicence Site Preference nationallicence Zhu-Barker Xia Department of Land, Air, and Water Resources, University of California Davis, 95616, Davis, CA, USA aut Cavazos Amanda School of Earth and Atmospheric Sciences, Georgia Institute of Technology, 30332, Atlanta, GA, USA aut Ostrom Nathaniel Department of Integrative Biology, Michigan State University, 48824, East Lansing, MI, USA aut Horwath William Department of Land, Air, and Water Resources, University of California Davis, 95616, Davis, CA, USA aut Glass Jennifer School of Earth and Atmospheric Sciences, Georgia Institute of Technology, 30332, Atlanta, GA, USA aut Biogeochemistry Springer International Publishing 126/3(2015-12-01), 251-267 0168-2563 126:3<251 2015 126 10533 https://doi.org/10.1007/s10533-015-0166-4 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10533-015-0166-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zhu-Barker Xia Department of Land, Air, and Water Resources, University of California Davis, 95616, Davis, CA, USA aut NATIONALLICENCE 700 1- Cavazos Amanda School of Earth and Atmospheric Sciences, Georgia Institute of Technology, 30332, Atlanta, GA, USA aut NATIONALLICENCE 700 1- Ostrom Nathaniel Department of Integrative Biology, Michigan State University, 48824, East Lansing, MI, USA aut NATIONALLICENCE 700 1- Horwath William Department of Land, Air, and Water Resources, University of California Davis, 95616, Davis, CA, USA aut NATIONALLICENCE 700 1- Glass Jennifer School of Earth and Atmospheric Sciences, Georgia Institute of Technology, 30332, Atlanta, GA, USA aut NATIONALLICENCE 773 0- Biogeochemistry Springer International Publishing 126/3(2015-12-01), 251-267 0168-2563 126:3<251 2015 126 10533