北京林业大学学报2026，Vol.48Issue(3)：113-127,15.DOI:10.12171/j.1000-1522.20250400
功能区视角下城市形态对热环境的季节性影响
Seasonal impact of urban morphology on thermal environment from the perspective of functional zones
摘要
Abstract
[Objective]Rapid urbanization has significantly exacerbated the deterioration of urban thermal environment.A deep understanding of the influence mechanism of urban morphology is thus crucial for guiding urban planning and mitigating urban heat stress.[Method]This study focuses on a typical high-density region,the central urban area of Shanghai.Multi-source data,including road networks,land use,building data,remote sensing imagery,and POIs were integrated to quantify urban morphology and land surface temperature(LST)at the block scale from the perspective of functional zones.Using random forest regression(RFR)and partial dependence plot(PDP)analysis,the study systematically elucidated the relative contributions and nonlinear influences of urban morphological factors on LST across various functional zones.[Result]The findings demonstrated significant seasonal differentiation and spatial heterogeneity.The regulatory role of two-dimensional landscape indicators was prominent in spring and summer,with notable cooling effects in green spaces,squares,and transportation zones.In autumn and winter,three-dimensional building morphology became the dominant factor,particularly within commercial,industrial,and residential areas.The mechanisms underlying temperature increases and decreases also varied across different seasons and functional zones.During spring and summer,cooling in green spaces and squares was primarily achieved through percentage of water(PW)and sky view factor(SVF),where as transportation zones relied more on patch density(PD)and percentage of green(PG).In autumn and winter,average building height(AH)and architecture height standard deviation(AHSD)emerged as the dominant cooling factors.[Conclusion]By integrating functional zones with RFR and PDP analysis,this study identifies key thermal environment drivers in heterogeneous regions and elucidates their nonlinear relationships with LST.These findings advance our understanding of the seasonal dynamics of urban thermal environments and provide a scientific basis for formulating differentiated urban morphology regulation strategies.关键词
热环境/城市功能区/城市形态/地表温度/随机森林回归Key words
thermal environment/urban functional zones/urban morphology/surface temperature/random forest regression分类
管理科学引用本文复制引用
张艺萌,王贺封,刘佳,任雨达..功能区视角下城市形态对热环境的季节性影响[J].北京林业大学学报,2026,48(3):113-127,15.基金项目
国家自然科学基金项目(42071246),河北省高等学校科学技术研究项目(QN2024160). （42071246）
