4Lam K C, Ng S L, Hui W C, et al. Environmental quality of urban parks and open spaces in Hong Kong[ J ]. Environmental Monitoring and Assessment, 2005, 111 ( 1/3 ) : 55-73.
5Hunter I R. What do people want from urban forestry? the European experience[ J]. Urban Ecosystems, 2001, 5 (4) : 277- 284.
6Cole I, Keen C. Dutch techniques for the establishment of natural plant communities in urban areas[ J]. Landscape Design, 1976, 116: 31-34.
7Dwyer J F, Nowak D J, Watson G W. Future directions for urban forestry research in the United States[ J]. Journal of Arboricuhure, 2002, 28(5): 231-236.
