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<p>Global rapid urbanization has aggravated the effect of regional thermal environment. In order to explore the dynamic coupling relationship between land use and urban thermal environment, this study took Chang-Zhu-Tan Metropolitan Area as an case to discover the mechanism of impact on urban thermal environment from diverse dimensions of type, structure, pattern, and function. The results showed as follows. (1) From 2004 to 2022, significant expansion of construction land has led to an overall increase in regional land surface temperature (LST). At a grid scale of 3&#xa0;km, A10% increment of cultivated or construction land can increase LST by 1.51℃ or 2.10℃ respectively, while 10% increment of forest and grassland or water area will decrease LST by 0.42℃ and 1.86℃ respectively. (2) Forest and grassland or water patches with greater dominance and more complex shapes were more effective in LST reduction. Conversely, greater dominance and higher agglomeration of cultivated and construction patches tended to increase LST.(3) Inclusion of industrial and commercial functions significantly increased the probability of urban heat island (UHI) to 3.4 and 2.5 times, respectively. This study was expected to provide theoretical and practical experience for mitigating the thermal environmental effects in metropolitan area by land use optimization.</p>

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Temporal and spatial variability of autumn thermal environment and the impact mechanism of land use in Chang-Zhu-Tan Metropolitan Area, China

  • 期刊论文

  • 发表日期：

    2026年4月16日

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  • Zhenyan Sheng,
  • Wenbo Chen,
  • Tongyue Zhang,
  • Feiying Guan,
  • Peiqi Wang

摘要

Global rapid urbanization has aggravated the effect of regional thermal environment. In order to explore the dynamic coupling relationship between land use and urban thermal environment, this study took Chang-Zhu-Tan Metropolitan Area as an case to discover the mechanism of impact on urban thermal environment from diverse dimensions of type, structure, pattern, and function. The results showed as follows. (1) From 2004 to 2022, significant expansion of construction land has led to an overall increase in regional land surface temperature (LST). At a grid scale of 3 km, A10% increment of cultivated or construction land can increase LST by 1.51℃ or 2.10℃ respectively, while 10% increment of forest and grassland or water area will decrease LST by 0.42℃ and 1.86℃ respectively. (2) Forest and grassland or water patches with greater dominance and more complex shapes were more effective in LST reduction. Conversely, greater dominance and higher agglomeration of cultivated and construction patches tended to increase LST.(3) Inclusion of industrial and commercial functions significantly increased the probability of urban heat island (UHI) to 3.4 and 2.5 times, respectively. This study was expected to provide theoretical and practical experience for mitigating the thermal environmental effects in metropolitan area by land use optimization.