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Construction of Cooling Corridors with Multiscenarios on Urban Scale: A Case Study of Shenzhen

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  • Jiansheng Wu

    (Key Laboratory for Urban Habitat Environmental Science and Technology, School of Urban Planning and Design, Peking University, Shenzhen 518055, China
    Laboratory of Earth Surface Processes of Ministry of Education, College of Urban and Environment Science, Peking University, Beijing 100871, China)

  • Si Li

    (Key Laboratory for Urban Habitat Environmental Science and Technology, School of Urban Planning and Design, Peking University, Shenzhen 518055, China)

  • Nan Shen

    (Key Laboratory for Urban Habitat Environmental Science and Technology, School of Urban Planning and Design, Peking University, Shenzhen 518055, China)

  • Yuhao Zhao

    (Key Laboratory for Urban Habitat Environmental Science and Technology, School of Urban Planning and Design, Peking University, Shenzhen 518055, China
    Laboratory of Earth Surface Processes of Ministry of Education, College of Urban and Environment Science, Peking University, Beijing 100871, China)

  • Hongyi Cui

    (College of Social Science, Shenzhen University, Shenzhen, Guangdong 518060, China)

Abstract

Under the background of rapid urbanization, the urban heat island (UHI) effect is becoming increasingly significant. It is very important for the sustainable development of cities to carry out quantitative research on the mitigation of the UHI effect at an urban scale. Taking Shenzhen as an example, this paper puts forward a method for building a cooling corridor for the city with multiscenarios based on the theory of ecological security pattern (ESP), which can realize quantitative planning of the spatial layout of urban green infrastructure (UGI) to alleviate the UHI effect. In this study, cooling sources are identified from the three dimensions of habitat quality, landscape connectivity, and the capacity to provide cooling ecosystem services. The cooling corridors that are superior at cooling, isolation, and ventilation are selected and optimized. The results show that the identified ecological cooling source area accounts for 33.18% of the total area of Shenzhen, and more than 85% of the area falls within the scope of the basic ecological control line of Shenzhen. There are 48 cooling corridors with a total length of 289.17 km in the cooling priority scenario, which mostly pass through the high-temperature and subhigh-temperature areas of each administrative region and city, providing a good cooling effect but poor feasibility. There are 48 corridors with a total length of 326.66 km in the isolation priority scenario, which mostly pass through the administrative region boundary and have a weak connection with the urban heat island, avoiding the built-up areas with strong human activities. As consequence, cooling is relatively achievable, but its effect is not ideal. There are 47 corridors with a total length of 368.06 km in the ventilation priority scenario, including many urban main roads and river systems that fully utilize the area’s strong natural wind conditions and realize various functions; however, the cooling effect is suboptimal. Corridors with great potential in cooling, isolation, ventilation, and noise reduction were determined after comprehensive optimization.

Suggested Citation

  • Jiansheng Wu & Si Li & Nan Shen & Yuhao Zhao & Hongyi Cui, 2020. "Construction of Cooling Corridors with Multiscenarios on Urban Scale: A Case Study of Shenzhen," Sustainability, MDPI, vol. 12(15), pages 1-19, July.
    • Handle: RePEc:gam:jsusta:v:12:y:2020:i:15:p:5903-:d:388095
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    References listed on IDEAS

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    1. Majid Amani-Beni & Biao Zhang & Gao-Di Xie & Yunting Shi, 2019. "Impacts of Urban Green Landscape Patterns on Land Surface Temperature: Evidence from the Adjacent Area of Olympic Forest Park of Beijing, China," Sustainability, MDPI, vol. 11(2), pages 1-16, January.
    2. Yanxu Liu & Shuangshuang Li & Yanglin Wang & Tian Zhang & Jian Peng & Tianyi Li, 2015. "Identification of multiple climatic extremes in metropolis: a comparison of Guangzhou and Shenzhen, China," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 79(2), pages 939-953, November.
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    Cited by:

    1. Barbara Cardone & Valeria D’Ambrosio & Ferdinando Di Martino & Vittorio Miraglia & Marina Rigillo, 2023. "Analysis of the Ecological Efficiency Increase of Urban Green Areas in Densely Populated Cities," Land, MDPI, vol. 12(3), pages 1-18, February.
    2. Elie Hanna & Francisco A. Comín, 2021. "Urban Green Infrastructure and Sustainable Development: A Review," Sustainability, MDPI, vol. 13(20), pages 1-15, October.

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