Soil Property Control of Biogeochemical Processes beneath Two Subtropical Stormwater Infiltration Basins

Substantially different biogeochemical processes affecting nitrogen fate and transport were observed beneath two stormwater infiltration basins in north‐central Florida. Differences are related to soil textural properties that deeply link hydroclimatic conditions with soil moisture variations in a humid, subtropical climate. During 2008, shallow groundwater beneath the basin with predominantly clayey soils (median, 41% silt+clay) exhibited decreases in dissolved oxygen from 3.8 to 0.1 mg L−1 and decreases in nitrate nitrogen (NO3−–N) from 2.7 mg L−1 to