城市三维空间与地表热环境定量关系研究——以济南为例  

Quantitative relationship between urban three-dimensional space and surface thermal environment:A case study of Jinan

作　　者：孟飞 王加运 赵媛媛 MENG Fei;WANG Jiayun;ZHAO Yuanyuan(School of Surveying and Geo-Informatics,Shandong Jianzhu University,Jinan 250101,China;Emergency Management Bureau of Zhangdian District,Zibo City,Zibo 255000,China)

机构地区：[1]山东建筑大学测绘地理信息学院,山东济南250101 [2]淄博市张店区应急管理局,山东淄博255000

出　　处：《山东建筑大学学报》2023年第4期66-74,共9页Journal of Shandong Jianzhu University

基　　金：国家自然科学基金项目(42101388)。

摘　　要：城市三维空间形态通过改变空气循环流动以及太阳辐射的传输平衡影响城市热环境。地表温度是研究城市热环境的重要参数之一,厘清城市三维空间形态影响地表温度的机制对缓解热岛效应具有重要意义。文章利用济南市2020年夏季Landsat8热红外影像数据和建筑矢量数据,通过3种回归分析模型探讨了城市三维空间形态与地表温度之间的相关性和空间尺度效应。结果表明:研究区域平均地表温度为33.97℃,而中高温区域面积比例高达58%;城市三维空间形态与地表温度之间具有尺度依赖性,选取4个基准尺度中,150 m空间尺度是研究城市热环境的最佳分析尺度;对地表温度影响较大的指标因子分别是空间拥挤度(SCD)、建筑物表面积(BSA)、平均高度(AV)、平均体积(AH),说明空间拥挤度较小、瘦高、三维空间上分布稀疏的建筑物有助于降低地表温度。The urban three-dimensional space shape affects the urban thermal environment by changing the air circulation flow and the transmission balance of solar radiation.Land surface temperature(LST),one of the parameters to study the urban thermal environment,is closely related to people s lives,so it is of great significance to clarify the influence mechanism of urban three-dimensional spatial form on land surface temperature to alleviate the heat island effect.In view of this,this study uses the landsat8 thermal infrared image data and building vector data of Jinan in the summer of 2020 to explore the correlation and spatial scale effect between the urban three-dimensional spatial form and LST through three regression analysis models.The results reveal a significant heat island effect in the study area,with an average LST of 33.97℃and a high proportion(58%)of medium and high-temperature areas.There is a scale dependence between urban three-dimensional spatial form and land surface temperature,with the 150 m spatial scale identified as the optimal scale for analyzing the urban thermal environment among the four benchmark scales.The index factors that have the greatest impact on the land surface temperature are space congestion(SCD),building surface area(BSA),average height(AV)and average volume(ah),indicating that land surface temperature can be reduced by constructing buildings with minimal space congestion,thin and tall structures,and a sparse distribution in three-dimensional space.

关 键 词：城市三维空间 地表温度 空间尺度 回归分析 

分 类 号：X87[环境科学与工程—环境工程]