Park cities should be used equally and have their own characteristics, while park cities should include systemicity, ecological value and service quality into the evaluation criteria. City parks are green islands. Park cities are large systems covering the whole city. Cities are groups of buildings that grow from parks. There is a difference between a systematic green space and an island park.
Park cities should have at least two major characteristics: universal benefits, improving the quality of life of the whole people; system, introducing ecology into the city. "Instead of building parks in the city, turn the city into a big park

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