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Emission of carbon monoxide from submerged rice fields into the atmosphere

Emission von Kohlenmonoxid aus gefluteten Reisfeldern in die Atmosphäre
: Conrad, R.; Schütz, H.; Seiler, W.


Atmospheric environment 22 (1988), Nr.4, S.821-823
ISSN: 0004-6981
ISSN: 1352-2310
Fraunhofer IFU; 2002 in Helmholtz-Gesellschaft integriert
anoxic soil; Boden(anoxisch); carbon monoxide; emission; Kohlenmonoxid; paddy field; Reisfeld; Reispflanze; rice plant

The emission of carbon monoxide was studied in Italian paddy fields using the static box technique. The results indicate that CO is produced in the submerged anoxic paddy soil. CO is released into the atmosphere predominantly by plant-mediated transport and to a lesser extent by ebullition. The total amount of CO released from the submerged soil is estimated to be approximately 0.2 Tg a E-1 which is three orders of magnitude lower than the release of CH4. CO was also produced by a light-dependent reaction in the phyllosphere of the rice plants. The corresponding CO emission rate was approximately twice that due to the release from the paddy soil and thus may be of the order of 0.5 Tg a E-1. (IFU)