Grass is used for highway slope protection, not only to prevent soil erosion on the road slope, but also to improve the landscape of the road and reduce the fatigue of the driver. For some slope areas where trees cannot be planted, it is necessary to use enhanced greening technology, which is often achieved by high-pressure spraying technology. The lawn used for highway slope protection should have the characteristics of strong drought resistance, strong covering ability, and resistance to extensive management. Commonly used grass species include chrysanthemum grass, millet grass, tall fescue, ryegrass, white clover, false thrift grass, ice grass and so on.
