一、“互动”现象及其成因我国的城市,大多是在历史上已经形成的人口相对集中的省、地级行政机关所在地,主要靠集中投资、重点投资开发建立和发展起来的。但在广大中西部地区,城市的发育与城市化进程还有其独特的运行轨迹,即肇始于自然资源开发、因资源开发而聚集非农业人口的城市化过程。在既无城市化内在动力刺激、又缺乏建设资金的欠发达地区和贫困地区,国家为开发利用自然资源而大量投资的契机,为中西 I. The phenomenon of “interaction” and its causes Most of the cities in our country are the provinces where the population has been relatively concentrated in history and the place where prefectural-level administrative organs are located has mainly been established and developed through concentrated investment and key investment and development. However, in the vast central and western regions, the development and urbanization of cities still have their unique running track, that is, the urbanization process that starts from the exploitation of natural resources and brings together non-agricultural population due to resource development. In the underdeveloped and impoverished areas where there is no inner driving force for urbanization and a lack of funds for construction, the opportunity for the state to invest heavily in developing and utilizing natural resources is the opportunity for both China and the West