Articles | Volume 29, issue 22
https://doi.org/10.5194/hess-29-6393-2025
https://doi.org/10.5194/hess-29-6393-2025
Research article
 | 
18 Nov 2025
Research article |  | 18 Nov 2025

Soil oxygen dynamics: a key mediator of tile drainage impacts on coupled hydrological, biogeochemical, and crop systems

Zewei Ma, Kaiyu Guan, Bin Peng, Wang Zhou, Robert Grant, Jinyun Tang, Murugesu Sivapalan, Ming Pan, Li Li, and Zhenong Jin

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This preprint is open for discussion and under review for Hydrology and Earth System Sciences (HESS).
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Cited articles

Adelsperger, S. R., Ficklin, D. L., and Robeson, S. M.: Tile drainage as a driver of streamflow flashiness in agricultural areas of the Midwest, USA, Hydrol. Process., 37, https://doi.org/10.1002/hyp.15021, 2023. 
Ashraf, M. A.: Waterlogging stress in plants: A review, Afr. J. Agric. Res., 7, 1976–1981, 2012. 
Askar, M. H., Youssef, M. A., Chescheir, G. M., Negm, L. M., King, K. W., Hesterberg, D. L., Amoozegar, A., and Skaggs, R. W.: DRAINMOD Simulation of macropore flow at subsurface drained agricultural fields: Model modification and field testing, Agr. Water Manage., 242, 106401, https://doi.org/10.1016/j.agwat.2020.106401, 2020. 
Bailey, R. T., Bieger, K., Flores, L., and Tomer, M.: Evaluating the contribution of subsurface drainage to watershed water yield using SWAT+ with groundwater modeling, Sci. Total Environ., 802, 149962, https://doi.org/10.1016/j.scitotenv.2021.149962, 2022. 
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By involving soil oxygen dynamics, we explore tile drainage impacts on the coupled hydrology–biogeochemistry–crop system. We find that soil oxygen dynamics is the key mediator of tile–system dynamics. Tile drainage lowers soil water content and improves soil oxygen levels, helping crops grow during wet springs. The developed roots also help mitigate drought stress in dry summers. Overall, tile drainage increases crop resilience to climate change, making it a valuable future agricultural practice.
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