The leaves and upright stems of the lawn have excellent sound absorption effects, capable of absorbing and reducing noise within the frequency range of125—8000Hz (Hertz) to a certain extent. A multi-layered green space combining trees, shrubs, and grass, with a width of40meters, can reduce noise by10—15dB (decibels). According to measurements by the Beijing Institute of Landscape Architecture, a20-meter-wide lawn can reduce noise by approximately2dB. Nowadays, many airports use lawns to pave the ground, which not only reduces dust at the airport but also mitigates noise and extends the life of engines. Therefore, establishing buffer green belts along roads and in industrial areas serves both to cover the ground surface and to reduce noise.

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   Base long-term supply: High and mid-grade cold-season golf green grass, Kentucky bluegrass, tall fescue turf. Turf is suitable for: villa courtyards, apartment complexes, parks, highway isolation, highway slope protection, football fields, golf courses, rooftop gardens, schools, hospitals, factories, hotels, and other greening projects. Suitable regions for turf: Beijing, Tianjin, Hebei, Inner Mongolia, Shandong, Shanxi, and other areas.