张小平:内蒙古荣大园林集团副总经理针对高速公路特殊环境,绿化植物品种选择应以经济、实用、安全、美观为原则,选择适合当地土壤、气候条件,耐瘠薄、抗旱性强,根系发达、分蘖力强的树种,因此应以乡土树种为主。其中,分车带绿化应选择生长缓慢或低矮的树种。高速公路两侧多为贫瘠土地且多施工遗留垃圾(如碎石块、砼等),这种环境不利于植物根系的生长,所以,在必要的情况下需换土。种植前应挖 Zhang Xiaoping: Deputy General Manager of Inner Mongolia Rongda Garden Group Aiming at the special environment of expressway, the selection of afforestation varieties should be based on the principle of economy, practicality, safety and aesthetics. It is suitable for the local soil, climatic conditions, barrenness, drought resistance, developed root system, Tillering strong tree species, it should be mainly native trees. Among them, the green car should choose slow growth or low tree species. More than two sides of the highway are poor land and more construction waste left over (such as gravel, concrete, etc.), this environment is not conducive to the growth of plant roots, therefore, the need to change soil if necessary. Before planting should dig