It has water resistance and light resistance, and can be recycled and cleaned; it is resistant to chemical corrosion, and pests do not bite; it is easy to dispose of, and does not pollute the air and soil; it has good thermal insulation, and can increase the temperature by 2-3 °C, the ground temperature is 1-2 °C, and the temperature change is relatively stable; Good air permeability, moisture absorption, no water droplets falling, reducing air relative humidity by 5%-10%; good water permeability, covering state can be irrigated, and can prevent rainwater from scouring the soil