【摘要】 目的旨在提高寒冷地区高速公路的绿化水平、通过对绿化材料生长立地条件的分析，及对绿化功能和重要意义的再认识，总结出绿化应遵循经济、实用、安全、美观的原则；植物材料选择应以适应当地自然条件，耐瘠薄、分蘖能力强、抗性强、易管理、根系发达的综合特性为依据，对绿化存在的主要问题进行探讨，提出了可应用植物材料的新选择。更多还原

【Abstract】 In order to improve the qualities of highway afforestment in the cold region, through the analyses ofthe growth environment of plant material and the function and significance of highway afforestment, it isproposed that the afforestment should follow the principle of economy. practical, safety and beauty.Plant material selecting should base on the synthetic features of fitting for the local condition, enduringbarren. strong resistance, administering easily and well-developed root system. The main problem inafforestment was approached, and the new selection of available plants was also put forward.更多还原