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以榆林市至佳县高速公路为例,采用实地调查方法,分析了不同土壤质地、不同填挖方间、护坡模式间植被的生长密度和生长状况,人工植被及与自然植被与不同路段间的关系。结果表明:在榆佳高速公路沿线,由于土壤类型的差异,边坡植树种草模式不尽相同。在接近佳县以黄土为主的高速公路沿线,护坡方式可以以拱形骨架护坡为主,而以沙土为主的榆林沿线,其护坡方式则是典型的草方格护坡。黄土区域的自然植被柠条、沙蒿等生长旺盛,沙土区域的自然植被则以沙蓬为主。由于榆佳高速公路的特殊地理位置,边坡防护受气候、土壤和公路本身等诸多因子的影响,建议对后期的植被生长进行监测,确保植被最大程度恢复。
Taking the Zhijia Expressway in Yulin City as an example, field survey was used to analyze the relationship between the growth density, vegetation status, artificial vegetation, natural vegetation and different road sections in different soil texture, . The results show that along the Yuguang Expressway, due to the difference of soil types, the planting patterns of grassland on slopes are not the same. In the vicinity of Jiaxian loess-dominated highway along the slope protection methods can be dominated by the arched skeleton, and sand-based Yulin along the slope protection method is a typical grass square slope protection. Natural vegetation in the loess region, such as Caragana korshinskii, Artemisia and other growth, the natural vegetation in the sand area is dominated by sand. Due to the special geographical location of Yujia Expressway, slope protection is affected by many factors, such as climate, soil and road itself, and it is suggested to monitor the vegetation growth in the later period to ensure the maximum restoration of vegetation.