Installation of subsurface drainage systems is one of the most common modifications of the agricultural landscape, and while it is well accepted that these systems alter the hydrologic regime, the nature and magnitude of such alterations remains poorly understood. We explore the impact of drainage systems using the field-scale model DRAINMOD and rainfall and soils data for Iowa.

Sloan, B. P., Basu, N. B., & R. Mantilla. “Hydrologic impacts of subsurface drainage at the field scale: Climate, landscape and anthropogenic controls,” Agricultural Water Management, vol. 165, pp. 1-10, 2016.