Carbon monoxide uptake by temperate forest soils: the effects of leaves and humus layers

Article English OPEN
Sanhueza, E. ; Dong, Y. ; Scharffe, D. ; Lobert, J. M. ; Crutzen, P. J. (2011)

Carbon monoxide (CO) fluxes between soil and atmosphere were measured between October 1990 and December 1991 in a temperate, deciduous forest near Darmstadt, Germany. Flux measurements were made with an enclosed chamber technique before and after the removal of leaves and humus from the forest floor as well as from leaves and humus alone. CO depth profiles were obtained during the period July to December, 1991. A net uptake of CO was observed under all conditions with an average of − 47.3 ± 24.0 ng CO m−2 s−1 for undisturbed forest soils, which increased significantly when the leaves or both leaves and humus were removed from the forest floor. The mean deposition velocity in undisturbed conditions was 0.027 ± 0.008 cm s −1. Our results indicate that CO has a short lifetime within the soil and that the consumption of atmospheric CO occurs mainly in the top few centimeters of the humus layer (O horizon). We conclude that temperate forests are a significant net sink for atmospheric CO and that leaves and humus significantly affect CO fluxes. The global soil sink for atmospheric CO was estimated to be 115–230 Tg CO yr−1.DOI: 10.1034/j.1600-0889.1998.00004.x
  • References (26)
    26 references, page 1 of 3

    Chin, M., Jacob, D. J., Munger, W., Parrish, D. D. and Doddridge, B. G. 1994. Relationship of ozone and carbon monoxide over North America. J. Geophys. Res. 99D, 14 565-14 573.

    Conrad, R. and Seiler, W. 1980. Role of microorganism in the consumption and production of atmospheric carbon monoxide. Appl. Environ. Microbiol. 40, 437-445.

    Conrad, R. and Seiler, W. 1982. Arid soils as a source of atmospheric carbon monoxide. Geophys. Res. L ett. 9, 1353-1356.

    Conrad, R. and Seiler, W. 1985. Influence of temperature, moisture, and organic carbon on the flux of H2 and CO between soil and atmosphere: field studies in subtropical regions. J. Geophys. Res. 90, 5699-5709.

    Crutzen, P. J. 1987. R oˆle of the tropics in atmospheric chemistry. In: T he geophysiology of Amazonia, vegetation, climate interactions, pp. 109-131. Dickinson R. E. (ed.). J. Wiley, Chichester, UK.

    Crutzen, P. J., Delany, A. C., Geenberg, J., Haageson, P., Heidt, L., Lueb, R., Pollock, W., Seiler, W., Wartburg, A. and Zimmerman, P. 1985. Tropospheric chemical composition measurements in Brazil during the dry season. J. Atmos. Chem. 2, 233-256.

    Dong, Y., ScharVe, D., Lobert, J. M., Crutzen, P. J. and Sanhueza, E. 1997. Fluxes of CO2, CH4, and N2O from a temperate forest soil: The eVects of leaves and humus layers. T ellus, submitted.

    Donoso, L., Romero, R., Rond o´n, A., Fernandez, E., Oyola, P. and Sanhueza, E. 1996. Natural and anthropogenic C2 to C6 hydrocarbons in the central-eastern Venezuelan atmosphere during the rainy season. J. Atmos. Chem. 25, 201-214.

    Gregory et al. 1986. Air chemistry over the tropical forest of Guyana. J. Geophys. Res. 91D, 8603-8612.

    Khalil, M. A. K. and Rasmussen, R. A. 1994. Global decrease of atmospheric carbon monoxide. Nature 370, 639-641.

  • Metrics
    No metrics available
Share - Bookmark