Isotopic Techniques to Measure N2O, N2 and Their Sources
| Autor: | Mohammad Zaman, J. Zhang, A. Gupta, J. Berendt, Scott X. Chang, Kristina Kleineidam, T. Frosch, Joachim Mohn, Zucong Cai, M. Šimek, Gerald Moser, Marcus A. Horn, K. Lenhart, G. Lucic, M. dos Reis Martins, Peter Dörsch, Khadim Dawar, Nicole Wrage-Mönnig, Segundo Urquiaga, Paul N. C. Murphy, Lutz Merbold, Lee Heng, A. Jansen-Willems, Christoph Müller, C.-M. Görres, Alberto Sanz-Cobena, S. Fiedler, C. Bracken, S. Henjes, C. Eckhardt, John P. Goopy, Mohammad M. R. Jahangir, Weixin Ding, Klaus Butterbach-Bahl, Dominika Lewicka-Szczebak, Reinhard Well, Lars R. Bakken, Lars Molstad, S. Zaman, Magdalena E. G. Hofmann, Timothy J. Clough |
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| Rok vydání: | 2021 |
| Předmět: |
Measure (data warehouse)
Stable isotope ratio 010401 analytical chemistry Gas flux 04 agricultural and veterinary sciences Tracing 01 natural sciences 0104 chemical sciences Greenhouse gas 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Environmental science Isotopologue Biochemical engineering |
| Zdroj: | Measuring Emission of Agricultural Greenhouse Gases and Developing Mitigation Options using Nuclear and Related Techniques ISBN: 9783030553951 |
| DOI: | 10.1007/978-3-030-55396-8_7 |
| Popis: | GHGemissions are usually the result of several simultaneous processes. Furthermore, some gases such as N2 are very difficult to quantify and require special techniques. Therefore, in this chapter, the focus is on stable isotopemethods. Both natural abundance techniques and enrichment techniques are used. Especially in the last decade, a number of methodological advances have been made. Thus, this chapter provides an overview and description of a number of current state-of-the-art techniques, especially techniques using the stable isotope15N. Basic principles and recent advances of the 15N gasflux method are presented to quantify N2 fluxes, but also the latest isotopologue and isotopomermethods to identify pathways for N2O production. The second part of the chapter is devoted to 15N tracing techniques, the theoretical background and recent methodological advances. A range of different methods is presented from analytical to numerical tools to identify and quantify pathway-specific N2O emissions. While this chapter is chiefly concerned with gaseous N emissions, a lot of the techniques can also be applied to other gases such as methane (CH4), as outlined in Sect. 5.3. |
| Databáze: | OpenAIRE |
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