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Orals BG1.12

BG1.12

Microbial nitrogen-transformation processes in terrestrial and aquatic ecosystems: advances in pathways-tracing, quantification and process-based modelling
Convener: Dominika Lewicka-Szczebak 
Co-Conveners: Reinhard Well , Christoph Müller , Daniel Weymann 
Session details
Orals
 / Thu, 16 Apr, 13:30–17:15  / Room G4
Posters
 / Attendance Thu, 16 Apr, 17:30–19:00  / Green Posters
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Thursday, 16 Apr 2015
Room G4
Chairperson: Daniel Weymann
N-transformations

13:30–13:45
EGU2015-14822
Tracing changes in N transformations in a permanent grassland under elevated atmospheric CO2
Gerald Moser, André Gorenflo, Kristof Brenzinger, Lisa Keidel, Dafydd Elias, Niall McNamara, Irena Maček, Dominik Vodnik, Gesche Braker, Sonja Schimmelpfennig, Judith Gerstner, and Christoph Müller
13:45–14:00
EGU2015-13340
The transformations and fates of deposited N in an N saturated subtropical forested catchment, SW China
Jing Zhu, Jan Mulder, and Peter Dörsch
14:00–14:15
EGU2015-4196
Relative gas diffusivity as a controller of soil N2 and N2O fluxes
Tim Clough, Nimlesh Balaine, Mike Beare, and Steve Thomas
14:15–14:30
EGU2015-8006
Ammonium Oxidation Under Iron Reducing Conditions: Environmental Factors Characterization and Process Optimization
Shan Huang, Melany Ruiz, and Peter Jaffe
14:30–14:45
EGU2015-8017
Isotopologue signatures of nitrous oxide produced by nitrate-ammonifying bacteria isolated from soil
Undine Behrendt, Reinhard Well, Anette Giesemann, Andreas Ulrich, and Jürgen Augustin
14:45–15:00
EGU2015-15127
In situ denitrification and DNRA rates in soils and underlying groundwater of an integrated constructed wetland
Mohammad Mofizur Rahman Jahangir, Owen Fenton, Eoin McAleer, Paul Carroll, Rory Harrington, Paul Johnston, Christoph Müller, and Karl Richards
15:00–15:15
EGU2015-13909
Nitrite: the key to understanding nitrogen cycling in ammonium-rich systems?
Naomi Wells, Kay Knöller, Vivien Hakoun, and Serge Brouyère
Coffee Break
Chairperson: Reinhard Well
Denitrification

15:30–15:45
EGU2015-15760
The effect of soil pH on N2O/(N2O+N2) product ratio of denitrification depends on soil NO3- concentration (solicited)
Mehmet Senbayram, Klaus Dittert, Reinhard Well, Dominika Lewicka-Szczebak, Joachim Lammel, and Lars Bakken
15:45–16:00
EGU2015-15587
Suppression of N2O and NO from denitrification by biochar: the role of pH
Alfred Obia, Gerard Cornelissen, Jan Mulder, and Peter Dörsch
16:00–16:15
EGU2015-13405
Denitrification as a Source of NO Emissions using Isotope Techniques
Laura Cardenas, Nadine Loick, Diego Abalos, Liz Dixon, Antonio Vallejo, Catherine Watson, Karen McGeough, Reinhard Well, and Peter Matthews
16:15–16:30
EGU2015-6006
Measuring denitrification after grassland renewal and grassland conversion to cropland by using the 15N gas-flux method
Caroline Buchen, Wolfram Eschenbach, Heinz Flessa, Anette Giesemann, Dominika Lewicka-Szczebak, and Reinhard Well
16:30–16:45
EGU2015-11646
Quantification of nitrous oxide (N2O) uptake in boreal forest soils by combining isotopic and microbial approaches
Nina Welti, Henri Siljanen, Christina Biasi, and Pertti Martikainen
16:45–17:00
EGU2015-1682
A novel 15N tracer approach for the quantification of N2 and N2O emissions from soil incubations in a completely automated laboratory set up
Clemens Scheer, Michael Dannenmann, and Rudolf Meier
17:00–17:15
EGU2015-1817
Quantifying gross N2O flux and production using 15N2O pool dilution technique and direct gas-flow core method
Yuan Wen, Zhe Chen, Michael Dannenmann, Andrea Carminati, Georg Willibald, Ralf Kiese, Benjamin Wolf, Edzo Veldkamp, Klaus Butterbach-Bahl, and Marife D. Corre