How Gullies are Formed
- The gullies are formed when many rills join and gain more than 30 cm in depth. The factors which affect gully erosion are the drainage area, soil characteristics, the alignment and shape of the gully, and the gradient of the gully channel.
- Access and management of the land are difficult, reducing their values. Gullies destroy farms and lands. The sediments carried by the flowing water cause discoloration, block waterways, and eventually, fill the dams.
Various factors affect gully formation, which is grouped into man-made and physical factors. Man-made factors include improper land use, forest and grass fires, overgrazing, mining, and road construction. Physical factors include precipitation, topography, soil properties, and vegetative cover.
What are Gullies?
When water flows over the land because of friction, a few quantities of materials from the surface are removed in the direction of flow, and narrow and small rills will be formed. These are termed gullies.