据美国哈佛大学地貌生态学家理查德·福曼估计,占美国陆地面积1%的公路,对20%国土的生态造成了直接影响。高速公路以其“安全、畅通、快速、高效”的特点,促进了社会物质、文化交流,加快了信息传递,缩短了人类的时空观念,扩大了活动范围,在人们日常生活及经济活动中的作用越来越大。但与此同时,高速公路产生的负面影响即对环境污染问题也日益突显起来,高速 According to Richard Forman, a landscape ecologist at Harvard University in the United States, which accounts for 1% of the land area of ​​the United States, has a direct impact on the ecology of 20% of the country’s territory. Expressway has promoted social material and cultural exchange, accelerated information transmission, shortened mankind’s concept of time and space, and expanded the range of activities in people’s daily life and economic activities, with its characteristics of “safe, smooth, rapid and efficient” The role of more and more. However, at the same time, the negative impact caused by expressways, that is, the problem of environmental pollution, has become increasingly prominent. High-speed