Soil quality refers to the condition of soil based on its capacity to perform ecosystem services that meet the needs of human and non-human life.[1][2][3][4]
Soil quality reflects how well a soil performs the functions of maintaining biodiversity and productivity, partitioning water and solute flow, filtering and buffering, nutrient cycling, and providing support for plants and other structures. Soil management has a major impact on soil quality.
Soil quality relates to soil functions. Unlike water or air, for which established standards have been set, soil quality is difficult to define or quantify.
^Johnson, D. L.; Ambrose, S. H.; Bassett, T. J.; Bowen, M. L.; Crummey, D. E.; Isaacson, J. S.; Johnson, D. N.; Lamb, P.; Saul, M.; Winter-Nelson, A. E. (1997). "Meanings of Environmental Terms". Journal of Environmental Quality. 26 (3): 581. doi:10.2134/jeq1997.00472425002600030002x.