屋顶薄层绿化对环境条件的影响  

Effect of the Thin Roof Greening on Micro-environment

作　　者：王春彦[1] 陆信娟 吴锦华 裔妹[1] 陆烨[1] 

机构地区：[1]金陵科技学院园艺系,江苏南京210038 [2]南京市农林局,江苏南京210008 [3]南京市万荣园林绿化工程有限公司,江苏南京210008

出　　处：《西北林学院学报》2010年第3期192-195,共4页Journal of Northwest Forestry University

基　　金：金陵科技学院科研基金(JIT-N-2007010)

摘　　要：以南京市薄层屋顶绿化为研究对象,研究薄层屋顶绿化对屋顶环境条件的影响。结果表明：在夏季,所有薄层屋顶绿化均可大幅度降低顶层楼板的温度,降幅为12.5~18.0℃,降温程度与种植层密度和厚度有直接关系,密度越大,厚度越大,降温幅度越大。薄层屋顶绿化能强烈改善屋顶的眩光,这主要与植物枝叶的颜色有关,紫红色和墨绿色植物对夏季太阳辐射吸收能力较强。一年中,各季节对屋顶的降温幅度不同,夏季最强,冬季较弱。对光照的调节能力主要与植物颜色和各季节的光照强度有关。薄层屋顶绿化对屋顶空气湿度改善不大。结合南京市气候特点,薄层屋顶绿化应选冬季落叶的植物种类。Effects of greening on the thin roof of the building on microenvironment were investigated.It was found that the temperature of the top floorboard could be reduced by 12.5 to 18.0℃.The amplitude of temperature reduction was positively related to the density and thickness of the greening.The roof glare could be improve by greening,which was mainly related to the color of greening plants.Red-violet and dark green plants could absorb glare effectively.In a year,the amplitude of temperature reduction were different： bigger in summer,and less in winter.Light regulating effects were related to the colors of the greening plants and light intensity in the season.No significant improvement on humidity was found on roof greening.Deciduas herbaceous plants were recommended for the roof greening in Nanjing.

关 键 词：屋顶 薄层绿化 温度 反射光强度 空气湿度 

分 类 号：S731.2[农业科学—林学]