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美国密西西比河下游东西两岸城镇发展水平差异显著,城镇主要分布在东岸。目前经济中心依然延续在东岸。据分析,形成这种格局的主要原因是地貌与经济两大因素综合作用的结果。那么,长江中下游(主要研究宜昌——南京段)两岸城市发展有何差异,形成原因是什么,以及未来发展格局怎样,就这三大问题进行研究无疑对中下游城市带发展具有重要意义。一、左右岸城市发展差异1.两岸城市分布、规模及职能。长江中下游宜
There is significant difference in the level of urban development between the east and west coasts of the lower Mississippi in the United States. The towns are mainly distributed on the east coast. The current economic center still continues in the east coast. According to the analysis, the main reason for the formation of this pattern is the result of the combined effect of the two major factors: landform and economy. Then, what is the difference between the urban development in the middle and lower reaches of the Yangtze River (Yichang-Nanjing section mainly studied), the reasons for their formation and the future development pattern? Studying these three major issues is of great significance to the development of the urban belt in the middle and lower reaches of the Yangtze River. First, the left and right bank city development differences 1. Cross-strait city distribution, size and function. The middle and lower reaches of the Yangtze River should be