2Marc Antrop. Landscape change and the urbanization process in Europe. Landscape and Urban Planning, 2004, 67: 9-26.
3Whittaker R H, Levin S A, Root R B. Niche, habitat, and ecotope. American Naturalist, 1973, 107(955): 321-338.
4Pearce D. Economics of Natural Resources and the Environment. New York: Harvester Wheatsheaf, 1990. 215-289.
5Grossman G, Krueger A. Economic growth and the environment. Quarterly Journal of Economics, 1995, 110: 353-377.
6David Foster J. The Role of the City in Environmental Management. Washington, D. C.: Island Press, 1994. 19.
7Euisoon Shim et al. Valuing the economic impacts of environmental problems: Asian cities. The World Bank. Urban Management Program Discussion Paper for Working Draft. Washington, D.C.: Island Press, 1994. 139.