Soil erosion is the result of soil not held in place by a plant and its roots. Wind and rain can wash that bare soil away. Right now the biggest agricultural export for the U.S. is topsoil. Getting more plants on to bare ground for more of the year helps to stop or reduce erosion. Some ranchers and farmers who work to reduce the bare ground on their land through regenerative agricultural practices have moved a landscape that was 70% bare ground to having only 40% bare ground. They do this by growing more plants and putting more litter and mulch on the ground where micro-organisms can utilize them and they can protect the soil from erosion.
Bare ground has been reduced from 70% to 40% with regenerative agricultural practices.