It mainly includes public green space, green space beside houses and road green space.
1, public * * * green space
Public green space refers to the recreational green space that meets the sunshine requirements, is suitable for arranging recreational facilities and is enjoyed by residents. It should include residential parks, small parks, group green spaces and other massive green spaces.
2. Green space next to the house
The green space beside the residence is a part of the residential building land and an important part of the residential green space.
In the land balance table of residential quarters, only the area and percentage of public green space are reflected, and the area of green space beside the house is not included in the public green space index, but the green space beside the house is 2-3 times larger than the public green space index, and the per capita green space can reach 4-6m 2. The green space next to the residence is the continuation and supplement of the internal space of the residence, which is closely related to the daily life of residents.
3, road green space
Road green space refers to the ground used for planting plants and beautifying the environment within the scope of road land.
Located in subgrade slope, borrow pit, central separation zone, car separation zone, protective zone, square, sidewalk, etc. It is used to purify air, beautify environment, adjust climate, prevent noise, snow, fire, shade, dazzle and induce driver's sight. These forms include street trees, boulevards, hedges, flowers and strip grass.
Function of urban green space
1, improving urban microclimate
Microclimate, also known as microclimate, refers to the small-scale climate in the near-surface atmosphere and the upper soil caused by some structural characteristics of the underlying surface.
Step 2 reduce noise
Noise generated by cars, trains, ships and planes in cities; Noise in industrial production and engineering construction; Noise from social activities and daily life is very harmful to health.
3. Disaster prevention and refuge
In cities in earthquake areas, in order to prevent disasters, urban green space can effectively become a disaster prevention shelter. Tree green belt has the function of fire prevention and prevention of fire spread. The fire resistance of different tree species is different, and the fire resistance of coniferous species is weaker than that of broad-leaved species. The natural critical temperature of broad-leaved leaves reaches 455℃, which has strong fire resistance.
Baidu encyclopedia-urban green space
Refer to the above content: Baidu Encyclopedia-Classification Standard of Urban Green Space