8McKinney M L. Urbanization as a major cause of biotic homogenization[J]. Biological Conservation. 2006,127(3):247-260.
9LaPaix P, Freedman, B. Vegetation Structure and Composition within Urban Parks of Halifax Regional Municipality, Nova Scotia, Canada[J]. Landscape and Urban Planning,2010,98(2): 124-135.
10Jim C Y, Chen Wendy Y. Pattern and Divergence of Tree Communities in Taipei' s Main Urban Green Spaces[J]. Landscape and Urban Planning,2008,84(3):312-323.