城市公园绿地夏季降温增湿效应  

Cooling and Humidifying Effect of Urban Park Green Spaces in Summer

作　　者：燕海南 曹雅男 Yan Hainan;Cao Yanan(School of Architecture and Urban Planning,Nanjing University,Nnajing 210093,China;Planning and Natural Resources Bureau of Kunshan,Kunshan 215300,Jiangsu,China)

机构地区：[1]南京大学建筑与城市规划学院,南京210093 [2]昆山市自然资源和规划局,江苏昆山215300

出　　处：《中国城市林业》2021年第4期91-96,共6页Journal of Chinese Urban Forestry

摘　　要：量化分析公园绿地的降温增湿效应有助于优化公园绿地的规划设计与管理。文章以苏州金鸡湖中央商务区的8个公园绿地为例,在对其空气温度与相对湿度进行实地观测的基础上,研究公园面积及形状、乔木覆盖率和水体面积占比等因素对公园绿地降温增湿效应的影响规律。结果表明:1)各公园绿地在测量时段(6∶00—18∶00)内的降温增湿效应表现为不同程度的波动情况,其中方洲公园表现出最大的降温增湿效应平均值,南施公园表现出最小的降温增湿效应平均值。2)公园绿地面积与降温效应呈现显著的正相关关系,水体面积占比与公园绿地的增湿效应呈现显著的正相关关系。因此,建议在保持绿地面积规模的同时适当增加水体面积占比对公园绿地夏季温湿环境具有一定的改善作用。The quantitative analysis of the cooling and humidifying effect of park green spaces is helpful to optimize the planning,design and management of park green spaces.Taking the Jinji Lake Central Business District in Suzhou City as an example,this study makes the synchronous measurement of air temperature and relative humidity in the 8 park green spaces selected,so as to analyze the influence of park area,park shape,tree coverage and water body area ratio on the microclimate of park green spaces.The results show that:1)The cooling and humidification effect of each park green space during the measurement period(6:00-18:00)presents a fluctuation of different degrees.Fangzhou Park has the maximum mean value of cooling and humidifying effect(△T_(avg)=6.23℃,△H_(avg)=17.62%),while Nanshi Park has the minimum mean value(△Tavg=2.48℃,△H_(avg)=9.71%).2)There is a significantly positive correlation between the park green space area and the cooling effect(R=0.746,P<0.05),and there is a significantly positive correlation between the water body area ratio and the humidifying effect of the park green spaces(R=0.592,P<0.05).It is suggested to appropriately increase the proportion of water body area while maintaining the cover of green spaces,which can improve the microclimate of park green spaces in summer.

关 键 词：城市公园绿地 夏季 降温增湿 金鸡湖中央商务区 苏州 

分 类 号：TU986[建筑科学—城市规划与设计] TU119.4