These activities include the construction of various forest plantations of trees and shrubs in the form of belts. The construction of anti-erosion belts is an expensive event. It takes some time to show its effectiveness. The largest investment in Bulgaria in this direction was made in the 50s of the 20th century, when a field protection belt was built in the region of Dobrudja.
- In case of danger of water erosion of the soil, water-regulating forest belts must be built – in the direction of the horizontals, perpendicular to the slope, which will absorb the flowing water and reduce the force of the water flow;
- In case of danger of wind erosion of the soil, wind protection forest belts must be built – across the direction of the prevailing winds, which will reduce the wind speed in the ground layer of air.