“双碳”目标下寒冷地区城市滨水住区夏季的热环境特征——以天津市为例  

Summer thermal environment characteristics of urban waterfront residential districts in cold climate zone with"dual carbon"goals——Case study of Tianjin city

作　　者：王柳璎 李阳力[1] 陈天[1,2,3] WANG Liuying;LI Yangli;CHEN Tian(School of Architecture,Tianjin University,Tianjin 300072,China;Institute of Urban Space and Urban Design,Tianjin University,Tianjin 300072,China;Old City Reconstruction Ecological Technology Engineering Center,Tianjin University,Tianjin 300072,China)

机构地区：[1]天津大学建筑学院,天津300072 [2]天津大学城市空间与城市设计研究所,天津300072 [3]天津市旧城改造生态化技术工程中心,天津300072

出　　处：《科技导报》2022年第6期46-55,共10页Science & Technology Review

基　　金：国家自然科学基金面上项目(52078329)。

摘　　要：为响应“双碳”政策,进一步明确中国寒冷地区滨水住区夏季热环境特征,基于天津市91个典型滨水住区的Landsat-8遥感影像与空间环境因子,运用相关性分析与多元线性回归方法得到热环境特征。结果表明:面状水体热环境调节作用优于线状水体,住区平均热岛强度差值达1.57℃;住区热环境与建筑密度、滨水距离呈显著正相关,与平均建筑高度、归一化植被指数、周边水面率呈显著负相关,其中归一化植被指数与周边水面率影响权重最高;不同建筑布局住区热环境的影响因子存在差异,点阵式住区平均热岛强度最低,围合式住区最高;当建筑密度小于19.08%,通过减小住区滨水距离、增加周边水面率能有效调节热环境。提出了改善寒冷地区滨水住区热环境的建议。In the background of the"dual carbon"policy,to further clarify the summer thermal environment characteristics of the waterfront settlement in the cold areas of China,the Landsat-8 remote sensing images and the impact factors of 91 typical waterfront settlements in Tianjin,along with the correlation analysis and the multiple linear regression method are used to obtain the characteristics of the thermal environment.It is shown that the thermal environment regulation effect of the planar water is better than that of the linear water,with the difference of the UHI effect up to 1.57℃.The UHI effect has a significant positive correlation with the building density(BD)and the waterfront distance(WD),and is significantly negatively correlated with the average building height(H),the normalized difference vegetation index(NDVI),and the water surface ratio within a radius of 1 km(WR),with the NDVI and the WR having the highest influence weight.There are differences in the influencing factors of the UHI effect in the settlement with different building layouts.The lattice-type settlement has the lowest UHI effect,and the enclosed-type settlement has the highest UHI effect.When the BD is less than 19.08%,the thermal environment can be adjusted well by reducing the WD and increasing the WR.Finally,recommendations for the thermal environment improvement of the waterfront settlements in cold regions are made.

关 键 词：寒冷地区 滨水住区 热环境 小气候 地表温度 天津市 

分 类 号：TU984.12[建筑科学—城市规划与设计]