Integrating urban development and ecological sustainability: a study on land surface temperature and urban heat island effect in a Karst River Basin

作者：Yangyang Wu, Haobiao Wu, Si‐Liang Li, Liqing Wu, Chunzi Guo, Zhonghua Zhang, Ruixue Fan, Xiaodong Yang, Guanghong Zhou, Jinli Yang, Panli Yuan, Guangjie Luo · 发表于：Frontiers in Built Environment · 年份：2024 · DOI：10.3389/fbuil.2024.1457347 · 被引用次数：7 · 研究领域：Urban Heat Island Mitigation、Remote Sensing and Land Use、Urban Green Space and Health

The Chishui River Basin, a vital waterway in Southwest China, has experienced rapid urbanization, leading to significant ecological and environmental changes, among which the urban heat island (UHI) effect is particularly pronounced. The UHI effect not only affects the quality of life for residents but also influences urban energy consumption and climate change, underscoring the need for in-depth study of its spatial distribution and contributing factors. The unique karst topography of the region further complicates UHI research, necessitating an investigation that can inform urban planning and sustainable development strategies. This study leveraged Landsat 8 TIRS satellite remote sensing imagery to examine the land surface temperature (LST) and UHI effect in the Chishui River Basin during the summers of 2016 and 2021. Employing the Mono-window Algorithm (MWA), the research quantitatively inverted the LST and analyzed its spatial distribution and the spatiotemporal characteristics of the surface urban heat island (SUHI) effect. The findings indicated a notable increase in average summer temperatures between the 2 years, with a 1.67°C rise from 2016 to 2021. Despite this increase, there was an observed reduction in the extent of SUHI areas, suggesting potential mitigation efforts. Additionally, the study revealed that karst regions were more susceptible to forming “abnormal” heat islands due to their distinct geomorphological features. The implications of this research are cr...