我国城镇园林绿化工作已普遍开展了,但有两点不足:1.绿化植物种类较单调,美化问题还考虑尚少;2.对我国土生土长的植物种类应用于园林,让它们在美化绿化城市中发挥作用还重视不够。针对上述问题,依据我们多年对珍稀濒危植物的试验研究,推出下述几个速生树种供大家选用。 1.银鹊树又名瘿椒树,是省沽油科落叶大乔木。35米以上的大树,胸径可达1.2—1.5米,材质好。幼树较耐荫,成年树较喜光。它虽自然生长在我国长江流域以南的中高山地区,引种到黄淮流域海拔较低的平原地区,冬季幼树、幼枝都不受冻害,生长良好。幼树萌芽力强,尤其是顶芽受到折损,萌发的侧芽很快就形成生长优势。树冠呈伞形,遮荫面积大,是一个 Landscaping work in urban areas of our country has been carried out universally, but there are two problems: (1) the types of greening plants are monotonous, and landscaping is still under consideration; (2) the native plant species in our country are applied to landscape gardens and beautified greening cities Also not enough to play a role. In response to the above problems, based on our many years of experimental research on rare and endangered plants, the introduction of the following quick-growing tree species for your selection. 1. Silver magpie tree, also known as Jiaojiao tree, is the province to sell oil tree deciduous trees. Tree above 35 meters, diameter of 1.2-1.5 meters, good material. Slightly shade trees, adult trees more like light. Although it naturally grows in the middle and high mountains south of the Yangtze River valley in China, it is introduced into the lower plains of Huang-Huai River basin. The young saplings and young shoots in winter are not affected by frost damage and grow well. Young sprout strong, especially the top bud is compromised, the germination of the lateral buds quickly form a growth advantage. Crown is umbrella, shade area, is one