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Area of Urban Gardens and Green Areas refers to the total area used for gardens and green by the report period, including public green land, residential zone green land, units green land, protection green land, production green land, roadside green land and suburban scenic spots.
The Rate of Green Coverage of the Developed Zones is the ratio of gardens and green areas to the developed zones areas, which is often expressed in %. The following formula is used
The Rate of Green Coverage of the Developed Zones= (gardens and green areas) / (the developed zones areas)×100%
Public Green Area refers to green area of various parks and roadside gardens opened to the public, including waters within the above region. Of which, residential zone gardens should not less than 10,000 square meters, roadside gardens should not less than 8 meters wide and 400 square meters.
Per Capita Public Green Area refers to public green owned by each urban population. The following formula is used
Per Capita Public Green Area=public green area/number of urban population
Per Capita Usable Floor Space of Urban Population refers to average usable floor space calculated by non-agriculture population, include the floor space of bedroom, living room, drawing room, kitchen, toilet, passage, stairs,closet, balcony, basement, attached storey, garret,etc. It is calculated according to the interior wall line of house.
Level of Equivalent Noise (LEQ) In the specified time interval, it refer to the A sound pressure of a continuous steady state sound, with the same mean square A sound pressure as the time variant noise. This sound level of a continuous steady state sound is the equivalent sound level of the time variant noise. The smaller of the value of noise equivalent sound level (dB), the better.
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