The present application belongs to the field of ecological restoration technology, and particularly relates to a composite grass planting
system, a preparation method and application, and a damaged ecological
system restoration method for lake and reservoir drawdown belt
steep slope areas. The composite grass planting
blanket provided by the present application mainly uses degradable
biomass materials as raw materials, and does not form secondary
pollution to the environment during use. Meanwhile, the present application can improve the
water retention of the composite grass planting
blanket through layer structure design, which is beneficial to the growth of
vegetation. The composite grass planting
blanket provided by the present application has good
erosion resistance, and prolongs the service life of the composite grass planting blanket. When the composite grass planting blanket is used to restore the lake and reservoir drawdown belt
steep slope area, the lake and reservoir drawdown belt
steep slope area is divided into a frequently submerged area, a wind and wave
erosion area and a lightly submerged area, and different types of plants are planted in different areas, so as to ensure the
survival rate of the plants, reduce water and
soil loss, and effectively realize ecological restoration.