What role do natural fibers or mats play in erosion control?

Natural fibers or mats are utilized in erosion control primarily because they provide ground cover that prevents soil movement. By creating a protective layer over the soil surface, these materials absorb rainfall impact and shield the soil from the erosive force of water and wind. This cover also helps retain moisture in the soil, supporting vegetation establishment and growth, which further stabilizes the soil and prevents erosion.

Ground cover is essential in areas vulnerable to erosion, as it not only protects the soil but also promotes the natural processes of sedimentation that can restore and maintain soil health. The fibers effectively anchor the soil, reducing the risk of displacement and loss of topsoil, which is vital for ecosystem function. This approach is especially beneficial in restoring disturbed lands and in areas prone to heavy rainfall or runoff.