What type of erosion is characterized by the removal of a thin layer of soil?

Sheet erosion is characterized by the removal of a thin layer of soil across a wide area, typically occurring uniformly over the surface. This process is often stimulated by rainfall, where raindrop impact dislodges soil particles, which are then washed away by overland flow. Unlike other forms of erosion, sheet erosion does not create noticeable channels or grooves in the soil surface; instead, it results in a relatively even loss of soil that can significantly diminish the topsoil layer, impacting soil fertility and its overall structure.

The nature of sheet erosion makes it particularly insidious, as it can go unnoticed until significant soil depth has been lost. This erosion type highlights the importance of managing surface water runoff and implementing soil conservation practices to protect valuable topsoil.