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Carbon-14 and Carbon-13 in Soil Co2

Published online by Cambridge University Press:  18 July 2016

Helmut Dörr  and
Karl Otto Münnich
Helmut Dörr
Affiliation:
Institut für Umweltphysik der Universität Heidelberg, Federal Republic of Germany
Karl Otto Münnich
Affiliation:
Institut für Umweltphysik der Universität Heidelberg, Federal Republic of Germany
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Abstract

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Carbon isotope measurements in soil CO2 are presented and discussed. Soil CO2 concentration and 13C profiles were measured using a new technique. A simple model describing the CO2 transport from the soil to the atmosphere is derived. The finding that CO2 in the soil is richer in 13C than the CO2 leaving the soil is attributed to isotopic fractionation in molecular diffusion.

Type
Soils and Groundwater
Information
Radiocarbon , Volume 22 , Issue 3: Heidelberg , 1980 , pp. 909 - 918
Copyright
Copyright © The American Journal of Science

References

Carslaw, H S and Jaeger, J C, 1959, Conduction of heat in solids: Oxford, Clarendon Press, p 233.Google Scholar
Craig, Harmon, 1954, Carbon 13 in plants and the relationships between carbon 13 and carbon 14 variations in nature: Jour Geology, v 62, p 122.Google Scholar
Esser, Norbet, ms, 1975, Messung der absoluten Konzentration und des 13C-Gehalts von atmosphärischem CO2: Thesis, Inst f Umweltphysik, Heidelberg.Google Scholar
Fontes, J C and Garnier, J M, 1979, Determination of initial 14C activity of the total dissolved carbon: A review of the existing models and a new approach: Water Resources Research, v 15, no. 2, p 399–413.10.1029/WR015i002p00399Google Scholar
de Jong, E and Schappert, H J V, 1972, Calculation of soil respiration and activity from CO2 profiles in the soil: Soil Science, v 113, p 328–333.Google Scholar
Kraner, H W, Schroeder, G L, and Evans, R D, 1964, Measurements of the effects of atmospheric variables on Rn-222 flux and soil-gas concentrations, in The natural radiation environment: Houston, Texas, Rice Univ Pub, p 191–215.Google Scholar
Levin, Ingeborg, Münnich, K O, and Weiss, Wolfgang, 1980, The effect of anthropogenic CO2 and 14C sources on the distribution of 14C in the atmosphere, in Stuiver, Minze and Kra, Renee, eds, Internatl radiocarbon conf, 10th, Proc: Radiocarbon, v 22, no. 2, p 379–391.Google Scholar
Münnich, K O, 1963, Der Kreislauf des Radiokohlenstoffs in der Natur: Naturwiss, v 6, p 211–213.Google Scholar
Münnich, K O 1968, Isotopendatierung von Grundwasser: Naturwiss, v 55, no. 4, p 158–163.Google Scholar
Münnich, K O and Roether, Wolfgang, 1963, A comparison of carbon 14 ages and tritium ages of groundwater, in Radioisotopes in hydrology: Vienna, IAEA, p 397–406.Google Scholar
Penman, H L, 1940, Gas and vapour movements in the soil: Jour Agric Science, v 30, no. 3, p 437–461.10.1017/S0021859600048164Google Scholar
Roether, Wolfgang and Kromer, B, Field determination of air-sea gas exchange by continuous measurements of radon-222: Pure appl Geophys, v 116, p 476–485.10.1007/BF01636901Google Scholar
Schoch, Hildegard, Bruns, Michael, Münnich, K O, and Münnich, Marianne, 1980, A multi-counter system for high precision carbon 14 measurements, in Stuiver, Minze and Kra, Renee, eds, Internatl radiocarbon conf, 10th, Proc: Radiocarbon, v 22, no. 2, p 442–447.Google Scholar
Stiller, M and Carmi, I, 1975, Water transport through Lake Kinneret sediments traced by tritium: Earth and Planetary Sci Letters, v 25, p 297–304.10.1016/0012-821X(75)90245-9Google Scholar
Zimmermann, Uwe, Ehalt, D and Münnich, K O, 1967, Soil water movement and evotranspiration: changes in the isotopic composition of the water, in Isotopes in hydrology: Vienna, IAEA, p 567–585.Google Scholar
Zimmermann, Uwe, Münnich, K O, and Roether, Wolfgang, 1967, Downward measurement of soil moisture traced by means of hydrogen isotopes: Washington, D C, Am Geophys Union, mon 11, p 28–36.10.1029/GM011p0028Google Scholar