Articles | Volume 23, issue 16
https://doi.org/10.5194/bg-23-5795-2026
https://doi.org/10.5194/bg-23-5795-2026
Research article
 | 
24 Aug 2026
Research article |  | 24 Aug 2026

Redox-network reconfiguration inferred from the ln[O2]–Eh relationship under mixed-potential conditions in a shallow pond time series

Kyoko Morimoto, Mana Ito, Katsutoshi Ito, and Mayumi Seto

Cited articles

Aladejana, J. A., Kalin, R. M., Sentenac, P., and Hassan, I.: Assessing the Impact of Climate Change on Groundwater Quality of the Shallow Coastal Aquifer of Eastern Dahomey Basin, Southwestern Nigeria, Water, 12, 224, https://doi.org/10.3390/w12010224, 2020. a
Auqué, L., Gimeno, M., Gómez, J., and Nilsson, A.-C.: Potentiometrically Measured Eh in Groundwaters from the Scandinavian Shield, Appl. Geochem., 23, 1820–1833, https://doi.org/10.1016/j.apgeochem.2008.02.016, 2008. a
Bastviken, D., Persson, L., Odham, G., and Tranvik, L.: Degradation of Dissolved Organic Matter in Oxic and Anoxic Lake Water, Limnol. Oceanogr., 49, 109–116, https://doi.org/10.4319/lo.2004.49.1.0109, 2004. a
Borch, T., Kretzschmar, R., Kappler, A., Cappellen, P. V., Ginder-Vogel, M., Voegelin, A., and Campbell, K.: Biogeochemical Redox Processes and Their Impact on Contaminant Dynamics, Environ. Sci. Technol., 44, 15–23, https://doi.org/10.1021/es9026248, 2010. a
Bowman, G., Harris, G., Kirk, M., and Jin, Q.: A Data-Driven Simplified Nernst Equation for Estimating Reduction Potentials in Groundwater from pH and Temperature, Groundwater, 63, 725–735, https://doi.org/10.1111/gwat.70010, 2025. a
Download
Short summary
Water sensors that measure oxidation-reduction potential are difficult to interpret because each reading reflects many chemical reactions at once. Using a simple mathematical analysis and 21 months of pond observations, we found that a stable relationship between dissolved oxygen and sensor readings can indicate a stable reaction balance. Excavation disrupted this relationship at the most affected site, and its later partial recovery showed that the approach can track environmental change.
Share
Altmetrics
Final-revised paper
Preprint