What is a fragipan?

A fragipan is defined as a cemented subsurface soil layer that exhibits brittleness when moist. This unique soil layer is typically characterized by its dense, hard, and brittle nature, which can impede the movement of water and roots. Fragipans form under specific conditions and often contain minerals that contribute to their cemented texture.

Understanding fragipans is important in the context of soil management and agriculture, as they can significantly influence drainage and overall soil health. When saturated with moisture, fragipans are prone to becoming compacted, which can have detrimental effects on root growth and water absorption for plants. Recognizing the properties of fragipans helps soil scientists and agricultural professionals make informed decisions regarding land use and crop management strategies.