Soils erosion is caused by both human impact and natural impact, such as rainfall; both will have the same impact on the soil. When water hits soil at a certain intensity the soil begins to move about in a certain space; when the soil is on a slope it will erode more quickly and destructively. The water hitting the soil causes the soil to move and become more prone to erosion. The more the soil moves it will become prone to channel erosion; which can become deeper and dangerous over years.
There are many different solutions to our Earth's soil erosion problem. We could add rocks and mulch to our soil and planting so decrease the amount of soil, eventually having no soil that could erode.
Another solution would to be to increase the draining systems. Increasing the draining systems and making them more efficient would decrease the chance for the soil to move and erode.
There is no way to decrease the natural causes of water erosion on the soil, but if we decrease our plant watering (if possible) it would also decrease the probability of soil having the chance to erode.