摘要
为筛选适合广州地区绿墙绿化种植的抗旱植物,以鸭脚木、锦竹芋、孔雀竹芋、绿萝、山菅兰、波士顿蕨、红背桂等7种常用的绿墙植物为实验材料,进行了抗旱性研究。通过实验表明:控水15 d后红背桂形态变化最明显,鸭脚木最不明显;7种植物的土壤含水量下降都较明显,叶片含水量下降不明显;大部分植物叶绿素含量下降也较明显,初始荧光上升幅度不大,PSⅡ最大光化学量子效率只有红背桂下降幅度很大。通过隶属函数分析可将这些植物在绿墙应用中的抗旱性由强到弱排序为:绿萝>孔雀竹芋>鸭脚木>锦竹芋>波士顿蕨>山菅兰>红背桂。
In order to select the drought-resistant plants suitable for green wall in Guangzhou,the drought-resistant studies were carried out by using seven common green wall plants such as Schefflera octophylla,Ctenantheoppenheim-iana ‘ Quadricolor’,Calatheamakoyana,Epipremnumaureum,Dianella ensifolia,Nephralepisexaltata ‘ Bostoniensis’,Excoecariacochinchinensis as experimental materials.Through the experimental observation,Excoecariaco-chinchinensischange significantly,but Schefflera octophylla have no evident changes after 15 days of water control.The soil moisture content of 7 plants decreased significantly;the water content of leaves decreased little;the chlorophyll content of most plants decreased;and the initial fluorescence increased little.The maximum photochemical quantum efficiency of PSII only decreased greatly.Through the using of the Membership Function,the drought resistance of these plants in green wall application can be ranked from strong to weak:Epipremnumaureum〉Calathea-makoyana〉Schefflera octophylla>Ctenantheoppenheimiana ‘ Quadricolor’>Nephralepisexaltata ‘Bostoniensis’〉Dianella ensifolia〉Excoecariacochinchinensis.
作者
刘悦明
孙苗苗
李许文
刘国锋
余铭杰
Liu Yueming;Sun Miaomiao;Li Xuwen;Liu Guofeng;Yu Mingjie(Guangzhou Academy of Forestry and Gardening/Guangzhou Municipal Key Laboratory of Landscape Architecture,Guangzhou,Guangdong,510405,China)
出处
《绿色科技》
2019年第17期39-42,44,共5页
Journal of Green Science and Technology
关键词
绿墙植物
抗旱性
隶属函数
green wall plants
drought resistance
membership function
