With the installation of high strength galvanized PVC coated wire mesh, which is fixed by an individual anchor at about 1,000 mm c/c and acting as the turf reinforcement mat, the sprayed layer of the organic fiber soil will be reinforced and self-sustained on the application surface.This permanent vegetation cover layer could prevent the underneath in-situ earth materials from thermal weathering and surface erosion. As this preventative cover consisted the fiber soil, the evergreen vegetataion performance could be enhanced and could further reduce the maintenance cost.