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Orals BG1.10

BG1.10

Nitrogen-transformation processes in terrestrial and aquatic ecosystems: advances in pathways-tracing, quantification and process-based modelling
Convener: Tuula Larmola  | Co-Conveners: Sari Juutinen , Kristina Kleineidam , Jan Reent Köster , Reinhard Well , Christoph Müller , Julie Talbot 
Orals
 / Fri, 28 Apr, 13:30–17:00  / Room L2
Posters
 / Attendance Fri, 28 Apr, 17:30–19:00  / Hall A

Friday, 28 Apr 2017
Room L2
Chairperson: Sari Juutinen, Julie Talbot
Ecosystem Nitrogen Cycling across Scales

13:30–13:45
EGU2017-17872
Global terrestrial N2O budget for present and future Highlight
Stefan Olin, Xu-Ri Xing, David Wårlind, Peter Eliasson, Ben Smith, and Almut Arneth
13:45–14:00
EGU2017-5747
Partitioning nitrogen losses by natural abundance nitrogen isotope composition in a process-based statistical modelling framework
Ning Dong, Ian Wright, and Iain Colin Prentice
14:00–14:15
EGU2017-6762
Nitrogen-15 natural abundance of different soil N pools as a tool for assessing N transformation processes in alpine soils
Mikhail Makarov, Tatiana Malysheva, Alexei Tiunov, Maxim Kadulin, and Mikhail Maslov
14:15–14:30
EGU2017-11556
Soil nitrogen biogeochemical cycles in karst ecosystems, southwest China
Dejun Li, Hao Chen, Kongcao Xiao, and Kelin Wang
14:30–14:45
EGU2017-12053
How mycorrhizal plant-soil interactions affect formation and degradation of soil organic matter in boreal forest
Bartosz Adamczyk, Outi-Maaria Sietiö, Anu Ahvenainen, Petra Strakova, and Jussi Heinonsalo
14:45–15:00
EGU2017-1656
Biological N2 fixation mainly controlled by Sphagnum tissue N:P ratio in ombrotrophic bogs
Tatjana Zivkovic and Tim R Moore
Coffee break
Nitrous Oxide Production: Pathway Tracing and Quantification

15:30–15:45
EGU2017-16861
Do stable isotope approaches hold the potential for distinguishing nitrate ammonification as a source of nitrous oxide production?
Liz Baggs
15:45–16:00
EGU2017-12734
Nitrous oxide production from reactive nitrification intermediates: a concerted action of biological and chemical processes
Nicolas Brüggemann, Jannis Heil, Shurong Liu, Jing Wei, and Harry Vereecken
16:00–16:15
EGU2017-15403
Land use effects on gaseous nitrogen emissions and gross nitrogen transformations in Amazonian Dark Earth
Amanda Barbosa Lima, Aleksander Westphal Muniz, Katharina Lenhart, Gerald Moser, Kristof Brenzinger, Mi-Kyung Ha, Christian Eckhardt, Diedrich Steffens, Claudia Kammann, and Christoph Müller
16:15–16:30
EGU2017-5266
Full-drained peatland forests as nitrous oxide sources
Ülo Mander, Martin Maddison, Marika Truu, Jaak Truu, Mikk Espenerg, Alar Teemusk, Raili Torga, Kaido Soosaar, and Veiko Uri
16:30–16:45
EGU2017-12080
Nitrogen retention, removal, and nitrous oxide production in the Elbe Estuary
Kirstin Dähnke, Lisa Brase, Juliane Jacob, and Tina Sanders
16:45–17:00
EGU2017-6124
Quantifying the sources and sinks of nitrite in the oxygen minimum zone of the Eastern Tropical South Pacific
Qixing Ji, Brittany Widner, Amal Jayakumar, Bess Ward, and Margaret Mulholland