屋顶绿化树种叶片形态特征及耐旱性比较  

Leaf characters and their drought tolerance comparison for roof greening tree species

作　　者：徐振华[1] 

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

出　　处：《林业科技开发》2012年第4期68-72,共5页China Forestry Science and Technology

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"(编号:200804028)

摘　　要：以柳树、白榆、构树、金叶榆等13个树种为研究对象,并以地面自然生长的同种植物作为对照,对各树种叶片的主要解剖构造特征及其形态特征进行观察和测定,综合分析其控水能力。结果表明,不同树种叶片解剖特征各异,楼顶与地面树种叶片解剖特征也存在显著差异。综合分析认为:金叶女贞、杠柳、金叶榆耐旱性表现最佳,柳树、白榆抗旱性较强,金银木、小叶杨、紫叶小檗、桑树、构树耐旱性一般,珍珠梅、红瑞木、棣棠耐旱能力较差。In the paper the Salix matsudana, Ulmus pumila, Broussonetia papyrifera, U. pumila ＇ Jinye＇ and 9 other kinds of tree species were taken as research materials, and the same species on the ground as the control, the anatomical charac- teristics and the morphological characteristics of various species leaves were observed and determined, the ability of water control was comprehensive analyzed. The results showed that anatomical characteristics of different tree species leaves were different and leaf anatomical characteristics of the roof and ground varied obviously. The drought tolerance ability of the Li- gustrum vicaryi , Periploca sepium , and U. pumila ＇ Jinye＇ were the best, Salix matsudana and U. pumila were better, Loni- cera maackii ,Populus sinonii, Berberis thunbergii ＇ Atropurpurea＇ , Morus alba and Broussonetia papyrifera were normal and Sorbaria sorbifolia, Swida alba and Kerria japonica were the worst. The results can provide a reference for the choice of drought tolerancetree species for the roof under certain circumstances.

关 键 词：屋顶绿化 树种 叶片形态结构 耐旱性 

分 类 号：S688[农业科学—观赏园艺]