• DOI:10.4319/LO.1986.31.2.0293
• Corpus ID: 15941210

Oxygen production and consumption in sediments determined at high spatial resolution by computer simulation of oxygen microelectrode data l

@article{Revsbech1986OxygenPA,
  title={Oxygen production and consumption in sediments determined at high spatial resolution by computer simulation of oxygen microelectrode data l},
  author={Niels Peter Revsbech and Bent Lauge Madsen and B J{\o}rgensen},
  journal={Limnology and Oceanography},
  year={1986},
  volume={31},
  pages={293-304}
}

• N. Revsbech, B. Madsen, B. Jørgensen
• Published 1 March 1986
• Environmental Science
• Limnology and Oceanography

Microprofiles of oxygen and oxygenic photosynthesis were measured in a photosynthetically active sediment by an oxygen microelectrode. The di&.tsion coefficient of oxygen in the uppermost 1 mm of the sediment was determined in poisoned sediment by microelectrode measurement of changes in the oxygen profile during nonsteady state conditions. The experimentally obtained data were inserted into computer models to calculate the vertical profile of the oxygen consumption rate. The calculations showed that the rate of oxygen consumption was highest at the oxic-anoxic boundary where sulfide was oxidized and in the lowest part of the photic zone. Computer models were also used to obtain more accurate profiles of oxygen production. The oxygen profiles calculated by the computer were very close to those obtained experimentally both during the steady state developed under light and during the transient conditions developed at the onset of darkness.