冬季自然条件下12种屋顶绿化木本植物抗寒性分析  

Analysis of Cold Resistance of 12 Kinds of Roof Greening Woody Plants under Natural Conditions in Winter

作　　者：徐振华[1] 马香利 

机构地区：[1]河北省林业科学研究院/河北省林木良种工程技术研究中心,石家庄050061 [2]河北省正定县水务局,河北正定050800

出　　处：《中国农学通报》2011年第19期251-254,共4页Chinese Agricultural Science Bulletin

基　　金：国家林业局林业公益性行业专项"适宜房顶绿化的高效节水型木本植物良种选育"(200804028)

摘　　要：为探索屋顶绿化木本植物的抗寒能力,筛选出耐寒强的屋顶绿化木本植物,在2010年12月、2011年1月和2月冬季自然降温条件下,结合实地观测屋顶和地面温度、风力、相对湿度等气象因子,采用电导法,分别对12种木本植物1年生休眠枝条细胞膜透性进行测定。结果显示,石家庄冬季屋顶比地面温度高、风速大、相对湿度低。构树、柳树、金银木抗寒能力强‘,金叶’榆、桑树、杠柳、白榆、小叶杨‘、金叶’女贞抗寒能力较强,珍珠梅、棣棠、红瑞木抗寒能力较弱。运用电导法评定屋顶绿化木本植物抗寒性是可靠的,为快速筛选抗寒性强的屋顶绿化木本植物提供了参考依据。To explore the cold resistance ability of roof greening woody plants and screen out the more cold resistance plants, the 1-year-old dormant shoots cell membrane permeability of 12 kinds woody plants were determined by conductivity combined with the roof surface temperature, wind, relative humidity observed on roof and ground under natural cooling conditions in winter in December, 2010, January and February, 2011. The results showed that the roof had higher temperature, greater speed wind and lower humidity than the grand in winter in Shijiazhuang. The cold resistance of Broussonetia papyrifera, Salix matsudana, Lonicera maackii were best, and which of Ulmus pumila cv. ‘ jinye ’ , Morus alba, Periploca sepium, Ulmus pumila, Populus simonii and Ligustrum cv. ‘ Vicaryi ’ were better, and the cold resistance of Sorbaria sorbifolia, Kerria japonica and Swida alba were worst. It was feasible for using conductivity to evaluate the cold resistance of roof greening woody plants, and which can provide a reference for screening which had woody plant better cold resistance.

关 键 词：屋顶绿化 木本植物 抗寒性 自然条件 相对电导率 

分 类 号：S688[农业科学—观赏园艺]