The destruction of vegetation in river basins and the unfavorable flood resistance of river banks are one of the causes of flood disasters, and the grass-covered vegetation layer with grass as the main body plays an important role in soil and water conservation and dam reinforcement. In the Netherlands, planting grass is considered the best soil and water conservation method. Experiments have proved that grass plays a significant role in maintaining water and soil and inhibiting surface runoff. Grass and its root system can absorb a lot of precipitation and can greatly delay the rapid formation of surface runoff during heavy rainfall. Therefore, when choosing grass species, you should choose a well-developed root system, strong tillering force, good resistance, and waterlogging resistance according to different ecological conditions. Grass species that are flexible and easy to manage are the selection criteria, and are not measured by the standards of football field lawns and square green spaces.
