6PALUMBI S R.Humans as the world's greatest evolutionary force[J].Science,2001,293:1786-1790.
7UNFP.The State of World Population 1999[M].United Nations Population Fund.United Nations Publications,New York.1999:76.
8PICKETT S T A,CADENASSO M L,GROVE J.M,et al.Urban ecological systems:Linking terrestrial ecology,physical,and socioeconomic components of metropolitan areas[J].Annual Review of Ecology and Systematics,2001,32:127-157.
9ZHOU L M,DICKINSON R E,TIAN Y H,et al.Evidence for a significant urbanization effect on climate in China[J].PNAS,2004,101(26):9540-9544.
10HOWARD L.Climate of London Deduced from Metrological Observations (Vol.1) [M].3rd edition.London:Harvey and Dorton Press,1833:348.
