Urban-rural disparities in summer cooling services in parks based on a dual perspective of thermal comfort and land surface temperature

LIU Ya'nan; PENG Jiuyao; ZENG Peng; XUE Wei; LAI Xiaohong; LIU Yaoyi

doi:10.13300/j.cnki.hnlkxb.2026.01.002

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Urban-rural disparities in summer cooling services in parks based on a dual perspective of thermal comfort and land surface temperature

High-quality development of urban-rural with green integration | 更新时间：2026-11-05

- Urban-rural disparities in summer cooling services in parks based on a dual perspective of thermal comfort and land surface temperature
- Journal of Huazhong Agricultural University Vol. 45, Issue 1, Pages: 13-23(2026)
- 作者机构：
  
  1.重庆交通大学建筑与城市规划学院，重庆 400074
  2.江汉大学数字建造与爆破工程学院/精细爆破全国重点实验室，武汉 430056
  3.东南大学建筑学院，南京 210096
  4.南京林业大学风景园林学院，南京 210037
- 作者简介：
- 基金信息：
- DOI：10.13300/j.cnki.hnlkxb.2026.01.002
  CLC： TU986
- Received：07 September 2025，
  
  Published：15 January 2026
- 稿件说明：
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刘亚南，彭久瑶，曾鹏，等.公园夏季降温服务供给的城乡差异：基于热舒适和地表温度的双重视角［J］.华中农业大学学报，2026，45（1）：13‐23.

LIU Ya'nan,PENG Jiuyao,ZENG Peng,et al.Urban-rural disparities in summer cooling services in parks based on a dual perspective of thermal comfort and land surface temperature[J].Journal of Huazhong Agricultural University,2026,45(01):13-23.
刘亚南，彭久瑶，曾鹏，等.公园夏季降温服务供给的城乡差异：基于热舒适和地表温度的双重视角［J］.华中农业大学学报，2026，45（1）：13‐23. DOI： 10.13300/j.cnki.hnlkxb.2026.01.002.

LIU Ya'nan,PENG Jiuyao,ZENG Peng,et al.Urban-rural disparities in summer cooling services in parks based on a dual perspective of thermal comfort and land surface temperature[J].Journal of Huazhong Agricultural University,2026,45(01):13-23. DOI： 10.13300/j.cnki.hnlkxb.2026.01.002.

摘要

为弥补现有研究多依赖地表温度（land surface temperature，LST）而忽视环境热舒适的不足，从热舒适视角系统评估城市公园的热环境缓解效能，以上海市为例，引入改进温湿指数（modified temperature–humidity index，MTHI）表征热舒适度，融合公园矢量与手机信令数据，从热舒适视角评估公园的降温能力，并对比分析基于MTHI与LST的公园降温效应及其城乡差异。结果显示：公园降温范围由核心城区向远郊递增，但MTHI评估的效应整体低于LST；公园面积、植被及水体覆盖度均与降温强度呈正相关，而植被覆盖与LST降温距离呈正相关，与MTHI降温距离呈负相关；核心城区因人口密集，其等效降温服务人口远超郊区，但MTHI测算的服务人口较LST低54.5%，说明传统仅依赖LST的评估方法可能显著高估公园效应。结果表明，应引入热舒适指标以综合评估公园降温效应，并采取差异化策略：在高密度城区增加小型公园供给，在郊区优化公园设计，从而精准提升人居环境的热舒适度。

Abstract

Shanghai was used to systematically evaluate the cooling effectiveness of urban parks from the perspective of thermal comfort to address the limitation of existing studies that rely heavily on the land surface temperature （LST） and neglect the thermal comfort in environment.The modified temperature-humidity index （MTHI） was introduced to characterize the thermal comfort.The vector data of parks were integrated with mobile signaling data to evaluate the cooling capacity in parks from the perspective of thermal comfort.The cooling benefits of parks and urban-rural disparities based on MTHI and LST were compared.The results showed that the cooling range of parks increased from the core urban area to the outskirts， but the benefits evaluated with MTHI was overall lower than those with LST.The size of park， vegetation coverage， and water-body proportion was positively correlated with the intensity of cooling.The vegetation coverage was positively correlated with LST-based cooling distance， but negatively correlated with MTHI-based cooling distance.The equivalent cooling service for population in the core urban area far exceeded that in the suburbs due to its high density of population.However， the served population estimated with MTHI was 54.5% lower than that with LST， indicating that traditional LST-based evaluation may significantly over-estimate the benefits of parks.It is indicated that the thermal-comfort indexes should be introduced to comprehensively evaluate the cooling benefits of parks and adopt differentiated strategies including increasing the supply of small parks in high-density urban areas and optimizing the design of parks in suburban areas to accurately improve the thermal comfort of the living environment.

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