Personally, I think the spray seeding greening method is better, but different French methods are suitable for the wrong environment.

According to different construction methods, there are the following ways:

(1) Seed sowing method: suitable for soft soil, sandy soil with thickness less than 25mm and cohesive soil with thickness less than 23mm, with slope less than 1: 1.

(2) Spray seeding method: it is suitable for gravelly soil with sand between gravels, sandy soil with a thickness less than 25mm, cohesive soil with a thickness less than 23mm, cohesive soil slope with a thickness greater than 25mm, or hard soil with a thickness greater than 25mm, and can be used in conjunction with carpet laying projects in areas with frequent rainstorms.

(3) Exotic soil spray seeding method [5]: Exotic soil spray seeding technology is a new technology to improve the slope planting environment, promote plant growth, realize three-dimensional greening, and restore the natural vegetation on the slope that cannot be afforested or has poor greening effect under ordinary conditions. The method of spray seeding with foreign soil has wide adaptability, and is suitable for both soil slopes and rock slopes.

(4) Acupoint ditching method

Methods: The point-and-click method is to dig holes with a diameter of 5 ~ 8 cm and a depth of 65,438+00 ~ 65,438+05 cm on the slope, with about 8 ~ 65,438+02 holes per square meter to prevent solid fertilizer from entering, and to bury the holes with soil and sand before sowing. Trenching method is to dig a trench with a depth of 10 ~ 15 cm on the slope with a horizontal spacing of about 50cm, and then put in fertilizer and sow.

Suitable for: the site conditions of green space on both sides of the highway are poor, such as hard soil or granite weathered sandy soil excavation slope.