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Oral Programme BG1.1Application of stable isotopes in biogeosciences (co-sponsored by EAG)Convener: M. E. Böttcher 
Co-Conveners: S. Bouillon , G. Gleixner
 Add this Session to your Personal Programme
Tuesday, 21 Apr 2009
Room: 22
Chairperson: M. E. Böttcher
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08:30–08:45
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EGU2009-1716
Isotope fractionation during the anaerobic consumption of acetate by methanogenic and sulfate-reducing microorganisms
D. Gövert and R. Conrad
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08:45–09:00
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EGU2009-2386
Stable isotope and microbial analyses of methane-producing process in a geothermal aquifer associated with the subsurface of the accretionary prism, Japan
S. Hattori, H. Kimura, H. Nashimoto, K. Koba, K. Yamada, M. Shimizu, H. Watanabe, M. Yoh, and N. Yoshida
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09:00–09:15
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EGU2009-2670
Seasonal and interannual variation of the isotopic composition of nitrate in five German rivers discharging into the North Sea
A. Johannsen, H. Rust, K. Dähnke, and K. Emeis
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09:15–09:30
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EGU2009-4547
Distribution and cycling of carbon in the Tana River basin (Kenya)
S. Bouillon, G. Abril, A.V. Borges, F. Dehairs, H. Hughes, R. Merckx, C. Osburn, and J.J. Middelburg
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09:30–09:45
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EGU2009-5195
Short term dynamics of abiotic and biotic soil 13CO2 effluxes after in situ 13CO2 pulse labelling of boreal pine forest
J.-A. Subke, H.W. Vallack, T. Magnusson, S. G. Keel, D. B. Metcalfe, P. Högberg, and P Ineson
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09:45–10:00
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EGU2009-5555
Modelling soil CO2 diffusion to investigate the effect of non-steady-state on isotopic composition of respired CO2
U. Gamnitzer, A.B. Moyes, D.R. Bowling, and H. Schnyder
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COFFEE BREAK | Chairperson: S. Bouillon
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10:30–10:45
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EGU2009-6991
A triplet 15N tracer experiment to evaluate the reaction pathways of N gases in soil during the processes nitrification and denitrification
C.F. Stange and R. Russow
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10:45–11:00
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EGU2009-9821
Tracing terrestrial organic matter by delta34S and delta13C signatures in a subarctic estuary
V. Alling, C. Humborg, C.-M. Mörth, L. Rahm, and F. Pollehne
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11:00–11:15
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EGU2009-9835
Isotopic characterization of nitrate sources in karstic springs in the basin of Paris
J. EL GAOUZI, M. Sebilo, V. Plagnes, P. Ribstein, and M. Zakeossian
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11:15–11:30
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EGU2009-12027
Stable carbon and oxygen isotopes as an indicator for soil degradation
C. Alewell, M. Schaub, and B. Seth
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11:30–11:45
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EGU2009-13191
{Stable isotope probing of the physical and biological controls that influence the fate and isotopic composition of carbon derived from the terrestrial methane sink }
p.j. maxfield, e.r.c. hornibrook, n. dildar, and r.p. evershed
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11:45–12:00
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EGU2009-2237
A new insight into microscale natural organic matter dynamics - using NanoSIMS
C. W. Mueller, K. Heister, F. Hillion, A. M. Herrmann, and I. Kögel-Knabner
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12:00–12:15
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EGU2009-9935
Evidence for the mechanisms of zinc acquisition by plants using isotope discrimination
T. Arnold, G.J.D. Kirk, M. Wissuwa, M. Frei, F.J. Zhao, and D.J. Weiss
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