Soil‐aeration procedures are widely used as an environmental practice for soil and groundwater remediation (removal of volatile compounds and enhancement of biological treatment) and less frequently as an agricultural practice to prevent root O2 deficiency. Analytical solutions to problems of air flow in the soil allow a phenomenological analysis of the physical problem and the effects of the governing parameters, which in turn enables a more systematic design tool for soil‐aeration systems. We present solutions for the air‐pressure distributions resulting from harmonic (sinusoidal) or square‐wave (step‐pulse) air injection into infinite and semi‐infinite (with an atmospheric pressure...
