关键词: 城市人口规模, 流动人口, 特大城市, 北京市, 人口调控, 交通拥堵, 城市化进程, 人口密度, 人口容量, 外来人口

Abstract: China has been urbanizing and big cities have been growing rapidly.Number of megacities in China increased from 34 in 1997 to 63 in 2007.There are substantial disputes over China’s urbanization strategy to prioritize big cities or medium and small-sized cities.Development of big cities faces challenges in transportation,housing,environment and resources and public services,and population control becomes increasingly important in big cities.This issue of Population and Development Forum is specifically devoted to population control in China’s megacities,for which three population experts were invited to share their views and suggestions.Professor Huang Ronglong,from Nanjing Normal University,argues that the major cause of China’s urban disease is not overpopulation but ill management of the cities.However,Professor Ding Jinhong,from East China Normal University,has a different view and asserts that a permanent cure to urban disease is population control.Talking on population control in Beijing,Professor Duan Chengrong,from People’s University of China,suggests the population control strategy be changed from a local to a national perspective.Three experts also provide policy suggestions in population control,city planning and management,industrial upgrading,mechanisms in evaluating demographic effect of social and economic programs,etc.Professor Liu Feng,from Development Research Center of the State Council,chairs the Forum and provides comments to the three papers and his own opinions as well.