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Quantifying and Comparing the Cooling Effects of Three Different Morphologies of Urban Parks in Chengdu

Author

Listed:
  • Xiaojing Feng

    (College of Architecture and Urban-Rural Planning, Sichuan Agricultural University, Chengdu 611800, China)

  • Jiahao Yu

    (College of Architecture and Urban-Rural Planning, Sichuan Agricultural University, Chengdu 611800, China)

  • Chuliang Xin

    (College of Architecture and Urban-Rural Planning, Sichuan Agricultural University, Chengdu 611800, China)

  • Tianhao Ye

    (College of Architecture and Urban-Rural Planning, Sichuan Agricultural University, Chengdu 611800, China)

  • Tian’ao Wang

    (College of Architecture and Urban-Rural Planning, Sichuan Agricultural University, Chengdu 611800, China)

  • Honglin Chen

    (College of Architecture and Urban-Rural Planning, Sichuan Agricultural University, Chengdu 611800, China)

  • Xuemei Zhang

    (College of Architecture and Urban-Rural Planning, Sichuan Agricultural University, Chengdu 611800, China)

  • Lili Zhang

    (College of Architecture and Urban-Rural Planning, Sichuan Agricultural University, Chengdu 611800, China)

Abstract

Urban parks have significant cooling effects, which can both mitigate the urban heat is-land effect and are crucial to the sustainable development of the human habitat. Although studies have been conducted to explore the influence of urban park morphology on the cooling effect of parks, they are not sufficiently in depth. Therefore, this paper took 117 urban parks in the central city of Chengdu as the research objects based on the perspective of the quantitative classification of urban park morphology. Then, remote sensing interpretation, spatial statistics, and regression analysis were used, and the four indicators of cooling intensity, cooling distance, cooling area, and cooling efficiency of urban parks were integrated to explore the cooling effect of the different morphological types of urban parks. The results show that (1) urban parks in Chengdu could be divided into five categories, among which the cooling effect of round parks was the best, and the cooling efficiency was 0.7. (2) In terms of park cooling area, urban parks’ area and perimeter thresholds were 30 ha and 4000 m, respectively. (3) When the area and perimeter of urban parks reached 70 ha and 3000 m, respectively, the increase in the cooling distance slowed down. (4) The cooling efficiency of the park was best when the shape index (indicating the complexity of the park boundaries) of the urban park was 2.8. The results of the study provide theoretical support for the intensive use of urban park green space and help the construction and promotion of a beautiful and livable park city in Chengdu.

Suggested Citation

  • Xiaojing Feng & Jiahao Yu & Chuliang Xin & Tianhao Ye & Tian’ao Wang & Honglin Chen & Xuemei Zhang & Lili Zhang, 2023. "Quantifying and Comparing the Cooling Effects of Three Different Morphologies of Urban Parks in Chengdu," Land, MDPI, vol. 12(2), pages 1-21, February.
    • Handle: RePEc:gam:jlands:v:12:y:2023:i:2:p:451-:d:1064209
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    References listed on IDEAS

    as
    1. Huawei Li & Guifang Wang & Guohang Tian & Sándor Jombach, 2020. "Mapping and Analyzing the Park Cooling Effect on Urban Heat Island in an Expanding City: A Case Study in Zhengzhou City, China," Land, MDPI, vol. 9(2), pages 1-17, February.
    2. Arshad, Salman & Ahmad, Sajid Rashid & Abbas, Sawaid & Asharf, Ather & Siddiqui, Nadia Asad & Islam, Zia ul, 2022. "Quantifying the contribution of diminishing green spaces and urban sprawl to urban heat island effect in a rapidly urbanizing metropolitan city of Pakistan," Land Use Policy, Elsevier, vol. 113(C).
    3. Hongyu Du & Fengqi Zhou & Wenbo Cai & Yongli Cai & Yanqing Xu, 2021. "Thermal and Humidity Effect of Urban Green Spaces with Different Shapes: A Case Study of Shanghai, China," IJERPH, MDPI, vol. 18(11), pages 1-13, June.
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