GEOGRAPHICAL RESEARCH ›› 2019, Vol. 38 ›› Issue (5): 1016-1029.doi: 10.11821/dlyj020170683

• Urban Research • Previous Articles     Next Articles

Evaluation of the service of parks in Chinese urban areas

Zening XU1,2(), Xiaolu GAO1,2, Zhiqiang WANG1,2(), Yan MA3, Yu DENG1,2, Ying LONG4   

  1. 1. The Key Laboratory of Regional Sustainable Development Analysis and Simulation, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China
    2. University of Chinese Academy of Sciences, Beijing 100049, China
    3. School of Architecture, Fuzhou University, Fuzhou 350116, China
    4. School of Architecture, Tsinghua University, Beijing 100084, China
  • Received:2018-06-26 Revised:2019-03-07 Online:2019-05-13 Published:2019-05-14

Abstract:

Previous evaluation of the service of urban parks has always based on a given city spatial range and given green parks. This means that the evaluation subject and the spatial range for evaluation is often chosen randomly, which makes it very hard to decide whether the spatial distribution of urban green parks is appropriate or not on the basis of the evaluation results, and also it is hard to make comparisons between different cities. This paper collected and studied the data, model and method on the evaluation of the service level of urban green parks, and researched from the perspective of the category, degree, service range and the availability of alternative choices of urban green parks, and based on the research, an evaluation indicator system and model is proposed which is centered on the accessibility of the residents living in urban built-up areas to surrounding green spaces. This paper also employs open source POI (point of interest) and the analysis method of Densi-Graph, which provides solution to the extraction of spatial data of urban green parks, the definition of the urban built-up range, the construction of specific indicators and other key technical problems. In this way, the objectivity and integrity of the evaluation of city green parks is guaranteed, and the evaluation results of different cities can also be compared. The evaluation results for 273 prefecture-level cities in China, demonstrate that the average service coverage rate of the urban green parks in prefecture-level cities in China reaches 64.8%. And there are still more than 20% of prefecture-level cities which have a service coverage rate less than 50.0%, indicating that there is a gap between the actual service level of urban green parks and the current national standards. In addition, there are significant differences of service level of urban city parks between different regions. Cities with higher service level are often megacities with population over one million and cities in developed eastern and northeastern China. At the same time, the service level is co-related with the population scale of a city in an S-shaped curve. In order to avoid incoordination of regional development, it is suggested that more resource should be input to the public service of urban green parks in middle and small cities and cities in central and western China.

Key words: urban parks, sevice coverage, urban built-up area, index comparability, open source data