8Risser. Landscape ecology: State of the art[ A]. In: Turner M G ed. Landscape Heterogeneity and Disturbance [ C ]. New York :Springer-Verlag, 1987. 3-14.
9Sorrell J P, Using geographic information systems to evaluate forest fragmentation and identify wildlife corridor opportunities in the Cataraqui Watershed[J/OL]. Faculty of Environmental Studies,York University, Ontario, Canada,1997.
10Andren H. Effects of habitat fragmentation on birds and mammals in landscapes with different proportions of suitable habitat: A review[J]. Oikos, 1994,71 : 355-366.