3SHERWOOD J3, CUTLER D BURTON J A. Wildlife and roads: Ecological impact [J]. London: Imperial College Press, 2002:169.
4TOMBLIKE S C, CHRISTOPHER A D. Review of ecological Effects of road on terrestrial and aquatic communities [J]. Conservation Biology, 2000, 14(1): 18-30. doi: lO.1046/j.15231739.2000.99084.x.
5ELEA M, SALAMI G. Fuzzy approach to the environment impact evaluation [J]. Ecological Modelling, 2001, 136(2-3): 131147.