城市街谷热岛效应研究进展

随着城市化水平不断提高及城市空间密度日益增加，城市热岛效应不断加剧，导致极端气候发生范围和强度增加，对城市居民的身心健康构成威胁。城市热岛效应现已成为多学科研究关注的热点。本文对现有尺度下热岛效应研究方法的技术发展进行了梳理，分析其优缺点以及在不同尺度上的适用性；此外，对街谷尺度下热岛效应的影响因素进行分析；最后，就当前研究过程中存在的问题，从数据及评价方法等方面提出街谷尺度下城市热岛的研究进展与发展趋势。本文旨在为紧凑型城市发展模式背景下，深入研究城市街谷热岛效应提供参考，为缓解城市热岛效应提供有效途径。

Research progress on the heat island effect of the street valley

With the increasing level of urbanization and the increasing density of urban space, the urban heat island effect is intensifying, resulting in an increase in the scope and intensity of extreme weather, posing a threat to the physical and mental health of urban residents. The urban heat island effect has now become a hot spot in multidisciplinary research. In this paper, the technical development of heat island effect research methods at existing scales is summarized, and its advantages and disadvantages and applicability at different scales are analyzed. In addition, the influencing factors of the heat island effect at the street valley scale were analyzed. Finally, according to the problems existing in the current research process, the research progress and development trend of urban heat island at the street valley scale are proposed from the aspects of data and evaluation methods. This paper aims to provide a reference for in-depth study of the urban street valley heat island effect under the background of compact urban development model, and provide an effective way to alleviate the urban heat island effect.