"Compacted" soil is a term applied to soil which, deprived of proper aeration (perhaps due to heavy foot traffic), suffers from excessive water runoff and poor conditions for plant rooting.
How Do You Solve the Problem of Compacted Soil?
In a lawn, you can correct the problem mechanically through core aeration. When opening up a new garden, people often employ garden tillers to break up compacted soil in conjunction with introducing soil amendments. Earthworms can help you avoid a recurrence of compacted soil.