In the modern world, lawn coverage is regarded as one of the important indicators to measure the construction of modern cities. In 1969, the International Turfgrass Research Conference was established. Global lawn cultivation technology, represented by golf course lawns.
The lawn is an artificial grass that is densely planted with dwarf perennial herbaceous plants and is trimmed. In the 18th century, a large area of lawn appeared in the British natural landscape garden. Lawns also appeared in modern Chinese gardens. It is generally set up in front of houses, squares, open spaces and around buildings for viewing, recreation or sports venues. The lawn is divided into: recreation lawn, ornamental lawn, sports field lawn, traffic safety lawn and soil protection lawn. The herbaceous plants used for lawns in cities and gardens mainly include Zoysiagrass, Bison grass, Bermudagrass, Carpet grass, Obtuse grass, Thrift grass, Ryegrass, Poa, Bentgrass, etc.
Lawn is annotated in the book "Cihai" as: "Lawn is also called grass". The lawn is a method of artificial planting or grass seed sowing in the garden, and the whole green ground formed by cultivation is an important part of the garden landscape, and it is also a place for recreation and entertainment. However, modern lawns are no longer limited to gardens. It has been widely used in sports fields, soil and water conservation areas, railways, highways, airports, factories and other places. In a broad sense, a lawn is a certain area of green body built by people with grass, which represents a high-level ecological organism. Including turfgrass and growth environment, it is mainly composed of three parts: the above-ground branch and leaf layer covering the surface, the underground root layer and the surface soil layer where the root system grows. The herbaceous plants that make up the lawn vegetation are the basic materials for turfing. Turfgrass is some herbaceous plant species or varieties that can form a lawn and can be trimmed.
