中国城市林业2025，Vol.23Issue(6)：80-87,8.DOI:10.12169/zgcsly.2025.09.30.0002
高密度老旧社区表面降温技术的热环境改善潜力评估
Thermal Environment Improvement Potential Assessmentfor Surface Cooling Technologies in High-density Old Residential Compounds:Multi-scenario Simulation under Renewal Constraints
摘要
Abstract
[Objective]Focusing on the spatial and functional constraints against the renewal of high-density old residential compounds,this study evaluates the thermal environment improvement potential and heat island mitigation effectiveness achieved by precisely matching surface cooling technologies such as green infrastructure and cool roofs with heterogeneously spatial carriers within the compounds.The aim is to provide a scientifically sound and practical decision-making basis for the planning of cooling facilities in high-density urban areas.[Method]taking Shentian Residential Compound in Xiamen as a case study,this study integrates field measurements and simulations and considers spatial constraints and renewal progress to construct a multi-scenario plan combining cool roofs,roof greening,and ground greening and quantify the synergistic cooling effects of technology matching strategies such as"sloped roof-cool roof,""flat roof-roof greening,"and"street-tree planting."[Result]1)Under strict constraints,the combined scheme that adapts cool roofs to sloped roofs and roof greening to flat roofs demonstrates the greatest potential in implementation and the most pronounced multi-height cooling benefits;2)Street trees form"cooling island"cores around their trunk,while their cooling effect is not significant in open areas;and 3)The baseline heat island intensity is 0.941 ℃,with a maximum reduction of 0.175℃ under the optimized scenario.[Conclusion]Optimized combinations of surface cooling strategies under spatial and functional constraints can significantly lower the local heat-island intensity,providing a stronger quantitative basis for improving the thermal environment and promoting sustainable development in old residential compounds and other high-density urban areas.The future research will scale up to more representative samples of residential compounds and couple microclimate simulation index and human body activity indicator so as to achieve the stride from physical cooling to somatosensory cooling.关键词
老旧社区更新/表面降温技术/热环境改善/多情景模拟/ENVI-metKey words
old residential compound renewal/surface cooling technology/thermal environment improvement/multi-scenario simulation/ENVI-met引用本文复制引用
左进,王潇,王子楠,于沐生..高密度老旧社区表面降温技术的热环境改善潜力评估[J].中国城市林业,2025,23(6):80-87,8.基金项目
国家重点研发计划项目(2022YFF1301300) （2022YFF1301300）
