山区高速绿化对改善交通运输环境具有重要的意义。山区高速公路绿化有立地条件差、管理难、投资大、成活率低等特点,这些特点极大地制约着高速公路绿化的发展,为了解决这些难题,承德市提出了高速公路绿化树种选择,绿化模式及实施措施。 High-speed greening in mountainous areas is of great significance to improving the transportation environment. In order to solve these problems, Chengde City proposed the selection of afforestation tree species and the afforestation model of highway, which is characterized by poor site conditions, difficult management, large investment and low survival rate. These features greatly restrict the development of expressway afforestation. And implement measures.