How can landscape plants help control erosion and wind?

Landscape plants play a vital role in protecting soil and mitigating the effects of wind through several mechanical and biological processes.

Controlling Wind

Plants are used to create windbreaks, which are rows of trees or shrubs designed to slow and redirect wind. By acting as a physical barrier, they reduce wind velocity on both the windward and leeward sides, which helps prevent mechanical damage to crops and reduces soil erosion caused by wind.12

The effectiveness of these plantings depends on their density and orientation. A medium-thick windbreak is generally most effective, as it allows some air to pass through while still significantly reducing speed. By lowering wind velocity, these plants also decrease the rate of transpiration in nearby crops, helping to conserve soil moisture and prevent harmful wilting in arid conditions.12

Controlling Erosion

While windbreaks specifically target wind-driven erosion, the root systems of landscape plants are essential for stabilizing soil. Roots provide anchorage for the plant and create a network within the ground that holds soil particles in place, preventing them from being washed or blown away.3