生态学报2025，Vol.45Issue(12)：5674-5689,16.DOI:10.20103/j.stxb.202408292064
湿热地区高密度老旧社区室外热舒适多维评价
Multi-dimensional evaluation of outdoor thermal comfort in built environments of high-density old communities in humid and hot areas:a case study of Shentian Community in Xiamen
摘要
Abstract
The Urban Heat Island(UHI)effect has led to the deterioration of the thermal environment in high-density old neighborhoods.However,current studies on outdoor thermal comfort evaluation in communities still face issues such as a relatively singular evaluation dimension,unclear correlations between quantitative indicators,and a lack of in-depth comparison of typical spatial differentiation within communities.Taking Shentian Community,a high-density old community in Xiamen City,as the research subject,a multidimensional evaluation scheme of microclimatic factors,subjective and objective thermal comfort,and crowd activities was constructed,based on on-site measurements,questionnaire surveys,and correlation analyses,focusing on the nuances of outdoor thermal comfort in the complex spaces of old communities.The quantitative relationships and influence mechanisms among these factors were also analyzed,and a more accurate baseline heat stress scale was established.The results showed that(1)the neutral Physiological Equivalent Temperature(PET)in the high-density community in Xiamen was 23.14℃,and the corresponding PET value for the"comfort"tier was≤29.53℃.Under different space types,there are more obvious differences in the physiological equivalent temperatures required to cause changes in TCV and TSV;(2)the degree of influence of each meteorological factor on the Thermal Sensation Vote(TSV)and on the Thermal Comfort Vote(TCV)were different,and global radiation was the main factor influencing subjective thermal comfort;(3)space occupancy can better characterize the overall community thermal comfort in hot and humid areas,and for every 1℃ increase in PET,the overall Usage Rate(UR)of the outdoor space in the neighborhood will decrease by about 2％.However,the tolerance thresholds and sensitivities of residents' willingness to use space in response to changes in thermal comfort vary across different space types in older neighborhoods.The results of the study enhance the systematicity and applicability of the coupled subjective-objective thermal comfort analysis,improve the precision of quantitative characterization of thermal comfort at the community scale,and provide important scientific support and decision-making basis for community planning and renewal practitioners to improve the thermal environment of outdoor spaces.关键词
高密度街区/热环境/热舒适度/生理等效温度/人群活动/湿热地区Key words
high-density neighborhoods/thermal environment/thermal comfort/physiological equivalent temperature(PET)/crowd activity/hot and humid areas引用本文复制引用
左进,张海陵,于沐生,魏清松,王子楠,范家珲..湿热地区高密度老旧社区室外热舒适多维评价[J].生态学报,2025,45(12):5674-5689,16.基金项目
国家重点研发计划课题(2022YFF1301304) （2022YFF1301304）
天津大学自主创新基金(2024XSC-0063) （2024XSC-0063）
