Oral Programme BG1.1

BG1.1

Application of stable isotopes in biogeosciences (co-sponsored by EAG)
Convener: M. E. Böttcher  | Co-Conveners: G. Gleixner , S. Bouillon 
Oral Programme
 / Tue, 21 Apr, 08:30–12:15  / Room 22
Poster Programme
 / Attendance Tue, 21 Apr, 13:30–15:00  / Poster Area BG

Tuesday, 21 Apr 2009
Room 22
Chairperson: M. E. Böttcher
08:30–08:45
EGU2009-1716
Isotope fractionation during the anaerobic consumption of acetate by methanogenic and sulfate-reducing microorganisms
D. Gövert and R. Conrad
08:45–09:00
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
09:00–09:15
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
09:15–09:30
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
09:30–09:45
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
09:45–10:00
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
COFFEE BREAK
10:30–10:45
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
10:45–11:00
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
11:00–11:15
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
11:15–11:30
EGU2009-12027
Stable carbon and oxygen isotopes as an indicator for soil degradation
C. Alewell, M. Schaub, and B. Seth
11:30–11:45
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
11:45–12:00
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
12:00–12:15
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