Using the ecological footprint model to assess ecological environment impacts of expressway

With the rapid development of expressway construction, environmental effects have also increased protrudes out from eco-environment, land utilization, hydrogeology and sound environment. Based on ecological footprint model, this paper analyses and compares the change of the per capita ecological footprint and biological capacity before and after constructing Yongdeng-Gulang (here-in-after, Y-G) expressway in Tianzhu County of Gansu province. Thus, ecological environment impacts are identified and will provide a scientific evidence for ecological environment protection policy-making.