广州市典型居住区绿化的降温效应研究  

Cooling Effects of Greening in a Typical Residential Area in Guangzhou

作　　者：聂危萧[1] 李晓晖[1] 梁颢严[1] 

机构地区：[1]广州市城市规划勘测设计研究院,广东广州510060

出　　处：《广东园林》2016年第2期73-77,共5页Guangdong Landscape Architecture

基　　金：广州市科技计划项目"城市控制性详细规划热环境评估与调控技术研究(2014J4100112)";国家"十二五"科技支撑计划课题"城市热环境调控技术集成及示范(2012BAC13B01)"

摘　　要：实地调查广州市某个典型居住小区的组团中心绿地的植被分布,采用热红外成像技术获取绿地的表面温度。在分析对比不同绿化类型的降温效果及日变化特征的基础上,对典型时段(12:00-14:00、18:00-20:00)的绿地表面温度进行了剖面分析。结果表明:1)不同植被类型的降温能力不同,乔灌木的总体降温作用强于草本;2)绿地的降温效应随太阳辐射的升降而起伏变化,在正午时段达到峰值;3)不同植被类型在不同时段发挥出的降温能力不同,日间乔灌木的降温效率更强,晚间草、灌木的降温效果更佳;4)建筑遮荫显著改变了绿地的温度场格局,对植被的降温效果影响作用显著。The field surveys are conducted to investigate the greening situation and uses infrared thermography to measure the surface temperature at a typical residential area in Guangzhou. We compare the cooling effects of different greening methods, and carry out a profile analysis of thermal infrared images of typical hours（12：00-14：00, 18：00-20：00）. The results show that 1） cooling efficiency of trees and shrubs is significantly higher than grass; 2） cooling effect is stronger during the day than at night, and strongest at midday（12：00-14：00）; 3）cooling capacities of trees and shrubs are stronger in the daytime, whereas grass is cooler during early evening and night time; 4）shade is found to be a significant factor influencing cooling effects of greenery.

关 键 词：热红外成像 微气候 居住区 绿化设计 降温效应 

分 类 号：S731.5[农业科学—林学]