城市用地空间扩展是城市成长发展过程中在物质形态上的具体体现,是城市发育有机成长的各种因素综合作用下的结果。自改革开放以来,由于经济增长迅速,优越区位外资的集聚,开发区的形成,中国大城市的用地空间扩展迅速。经过多年来的建设实践,参照全球经济一体化的背景,结合苏州市个案研究,初步探索了中国大城市用地空间扩展的若干规律,即城市扩展沿交通走廊轴线发展的脉动规律,城市边缘地区定向开发以及城市经济集聚与扩散规律制约下的城市空间扩展过程,按照科学发展观,探索这些规律指导中国的城市规划与建设,构建和谐社会,防止城市用地盲目扩大、用地失控,并促进城市土地开发按资源节约型方向发展,走城市可持续发展,健康城市化的道路。
Urban spatial expansion is the physical form of urbanization, resulting from complicated elements of urban growth. Since the reform and open-up policy the big city's space has expanded rapidly because of fast economic development, concentration of foreigninvested enterprises, establishment of development zones and real estate development. Taking the case of Suzhou the paper explored the patterns of big city's spatial expansion under globalization after reviewing the urban expansion cases in the recent thirty years. They included the rule of axis development along the transport corridors, oriented development rule and the urban spatial expansion procedure under the urban economic centralization and decentralization model. The rules may guide urban planning and construction to prevent urban space from unreasonable expansion, and facilitate urban health growth and sustainable development in China.