Oxygen is vital to the health of root systems and plant growth; the processes of exposing soil to air is called aeration.
Aeration can benefit your entire landscape, especially areas covered in grass or plants, and places that are compacted due to repetitive stress and traffic placed on the soil. Constant pressure causes natural pockets in the soil to collapse, denying root structures vital access to oxygen. Inadequate drainage and nearness to the water table can also cause problems with oxygen levels in your soil.
Many homeowners aerate their lawns themselves, however experienced landscapers have the tools and knowledge necessary to access the soil conditions, remedy problems and implement the permanent solutions often required to prevent serious problems that may arise from heavy traffic, and extreme moisture and drainage problems.