Tag: soil saturation

Download Iowa Soil Drainage Class Maps (gSSURGO)

“Drainage class (natural)” refers to the frequency and duration of wet periods under conditions similar to those under which the soil formed. Alterations of the water regime by human activities, either through drainage or irrigation, are not a consideration unless they have significantly changed the morphology of the soil. Seven classes of natural soil drainage … Continue reading Download Iowa Soil Drainage Class Maps (gSSURGO)