Soil may be exposed to erosion when a pasture is

Soil may be exposed to erosion when a pasture is 'overgrazed'. Overgrazing occurs when too many animals graze on a pasture, causing the vegetation to be consumed faster than it can grow back. This results in bare patches of soil being exposed, which can be easily eroded by wind and rain. The roots of the vegetation normally help to hold the soil in place, and when the vegetation is removed through overgrazing, the soil becomes vulnerable to erosion. Erosion can lead to the loss of topsoil, which is the most nutrient-rich layer of the soil and is essential for plant growth. It can also result in the degradation of the soil structure, which can affect water infiltration and retention and ultimately reduce the productivity of the pasture. Therefore, proper grazing management is essential to prevent overgrazing and soil erosion, and maintain a healthy and productive pasture.