Erosion is the removal of soil and rock by water from one location to another. Erosion is also when wind moves soil from one location to another.
Erosion is a natural process, although human activity can have an increased impact on the rate at which is occurs. Excessive erosion impacts soil quality, stream and river issues, and airborne dust pollution.
The most effective method to prevent erosion is vegetative cover. Other strategies that work are limiting livestock from walking into streams and rivers, terracing, windbreaks, stream restoration, and crop rotation.