Michigan Statewide Data Examples

This map is a digital reclassification of the Soil Association Map of Michigan which was published as MSU Extension Bulletin E-1550 in 1981. Natural drainage refers to the frequency and duration of periods of soil saturation or partial saturation. In well drained soils, wetness does not inhibit plant growth for significant periods during the growing season. Somewhat poorly drained soils are wet for significant periods during the growing season which markedly restricts mesophytic plant growth. The hydric soils of the state commonly have water at or near the surface for much of the growing season; only hydrophytic plants thrive in these soils if artificial drainage is not provided.