5Geneletti D.Using spatial indicatious and value functions to assess ecosystem feagmentation caused by caused by linear infrastructures[J].International Joumal of Applied Earth Observationand Geoinformation,2004(5):1-15.
6Serrano M,Sanz L,Puig J,et al.Landscape foagmentation caused by the teansport network in Nacarra(Spain):Ywo-scale analysis and Iandscape inregearion asscsssment[J].Landscape and Urban Planning,2002,58:113-123.
7Smith P.Theberge J.A review of criterion for evaluation naturalareas[J].Environ Man.1986.10(6):715-734.