寒地城市滨水区建筑高度和密度对水体降温效应的影响  

Research on Effects of Building Height and Density on the Cooling Effect of Water Body in Severe Cold Areas

作　　者：林晔 纪旭 袁敬诚[2] 安天一 LIN Ye;JI Xu;YUAN Jingcheng;AN Tianyi(School of Municipal and Environmental Engineering,Shenyang Jianzhu University,Shenyang,China,110168;School of Architecture and Planning,Shenyang Jianzhu University,Shenyang,China,110168)

机构地区：[1]沈阳建筑大学市政与环境工程学院,辽宁沈阳110168 [2]沈阳建筑大学建筑与规划学院,辽宁沈阳110168

出　　处：《沈阳建筑大学学报(自然科学版)》2025年第1期113-120,共8页Journal of Shenyang Jianzhu University:Natural Science

基　　金：“十四五”国家重点研发计划课题(2022YFE0208700-3);辽宁省教育厅基本科研项目(LJKZ0556)。

摘　　要：探究水体周边区域的建筑密度、建筑高度对水体降温效应的影响,为减缓城市热岛效应提供技术支持。基于Landsat8及Sentinel-2遥感影像数据,选取2020年夏季沈阳市三环内的浑河及其周边特定区域作为研究对象,借助一河两岸类型划分法划分三环内的浑河滨水区,并利用ArcGIS软件计算研究区的建筑密度和建筑高度;依据建筑参数和区域划分结果,构建多环缓冲区,计算浑河的降温效应;借助相关性分析,探讨浑河降温强度、各分区的平均地表温度与建筑密度、建筑高度之间的关联。建筑密度与滨水区地表温度呈线性正相关,与降温强度呈线性负相关;建筑高度与滨水区地表温度的相关性较弱,与降温强度呈非线性相关;密集高层建筑群离水体越远,水体降温效果越好。浑河的水体降温效应距离最远可达1.2 km;建筑密度小于0.2,建筑高度低于12.7 m时,水体降温效果较为显著。This paper was proposed to study the impact of building density and height in the surrounding areas of water bodies on the cooling effect of water bodies,and to provide technical support for mitigating the urban heat island effect.Based on Landsat8 and Sentinel-2 remote sensing image data,the Hun River and its surrounding specific areas within the Third Ring Road of Shenyang City in the summer of 2020 were selected as the research objects.The Hun River waterfront area within the Third Ring Road was divided using the method of dividing the two banks of the river,and the building density and height of the study area were calculated in ArcGIS;Based on building parameters and regional division results,construct a multi ring buffer zone and calculate the cooling effect of Hun River;Using correlation analysis,explore the correlation between the cooling intensity of Hun River,the average surface temperature of each zone,and building density and height.The building density is linearly positively correlated with the surface temperature of the waterfront area,and linearly negatively correlated with the cooling intensity;The correlation between building height and surface temperature in waterfront areas is weak,and there is a non-linear correlation with cooling intensity;The farther the dense high-rise building complex is from the water body,the better the cooling effect of the water body;The cooling effect of the Hun River can reach up to 1.2 km;When the building density is less than 0.2 and the building height is less than 12.7 m,the cooling effect of the water body is more significant.

关 键 词：热环境 滨水区 降温强度 建筑密度 建筑高度 多环缓冲分区 

分 类 号：TU984.1[建筑科学—城市规划与设计] TU119.4