柳州市行道树种的选择研究

在广西柳州市选择7个本地树种和15个外地树种进行引种试验,测定树种的光合效率、净化空气效率、生长量等指标,评价树种的适应性和抗逆性.结果选择出9个柳州市最佳的行道树种:广玉兰(Magnolia grandiflora L.)、狭叶杜英(Elaeocarpus lanceaefolius Roxb.)、乐昌含笑(Michelia chapensis Dandy)、大叶樟[Cinnamomum parthenoxylon (Jack) Nees]、海南蒲桃[Syzygium cumini (L.) Skeels]、美丽异木棉(Chorisia speciosa A.St.Hil.)、菩提树(Ficus religiosa L.)、仪花(Lysidice rhodostegia Hance)和栾树(Koelreuteria paniculata Laxm.),其中:大叶樟、海南蒲桃、仪花可作建群种,在营建行道树群落时作上层乔木的主体.

Studies on the Selection of Pavement Tree Species in Liuzhou City

7 local and 15 alien tree species were introduced for testing in Liuzhou,Guangxi.Their adaptability and resistance were evaluated by measuring the index of photosynthetic efficiency,air purification ability and growth rate,etc.The most perfect pavement trees to Liuzhou city are 9 as follows:Magnolia grandiflora L.,Elaeocarpus lanceaefolius Roxb.Michelia chapensis Dandy,Cinnamomum parthenoxylon(Jack) Nees,Syzygium cumini(L.)Skeels,Chorisia speciosa A.St.Hil.Ficus religiosa L.Lysidice rhodostegia Hance,Koelreuteria paniculata Laxm.Cinnamomun parthenoxylon,Syzgium cumini and Lysidice rhodostegia are also principle parts of top arbor for constructing community of pavement trees and suitable to be constructive species.