防污树种合欢的栽培

• 作 者: 禄亚武
• 机 构: 西北植物研究所,
• 出 处: 陕西林业科技
• 发表日期: 1981年02期
• 关键词: 叶互生 播种育苗 羽叶 成熟饱满 苗地 土壤干旱 幼苗出土 抚育管理 播前种子处理 播期

合欢(Albizzia julibrissn Durazz.)是豆科的落叶乔木。叶互生,二回偶数羽状复叶。对生的小叶能在傍晚或阴雨天闭合,清晨又能自动展开,故称“合欢”。花序头状,花丝粉红色,细长如绒线,也叫“绒线花树”。在树木开花稀少的夏季,它能从6月起陆续开花到7、8月份;荚果扁平如带,黄褐色,垂挂在羽叶下面,是一种很好的观赏树种。合欢不仅在园林绿化中久享盛名,而且对有害气体的抗性也强。据西安调查,

Albizzia julibrissn Durazz. Is a leguminous deciduous tree. Leaves alternate, two times even pinnate. Opposite leaflets in the evening or rainy days closed early in the morning can automatically expand, so called “Acacia.” Inflorescences head shape, filigree pink, slender, such as wool, also known as “cashmere flower tree.” In the rare summer flowering of trees, it can bloom from June to July and August; the pods are flat and yellowish brown, hanging under the leaves, which is a good ornamental tree species. Acacia not only enjoys a long-standing reputation in landscaping, but also has strong resistance to harmful gases. According to the survey in Xi’an,