大城市规模演化是城市成长发展过程中在物质形态上的具体体现,特别是城市用地的扩展,是城市发育有机成长的各种综合因素作用下的结果。从1985年以来,由于经济增长较快,外向型企业的集聚,开发区的形成以及房地产业的高速度增长,具有优越地理区位的沿海大城市的建成区不断扩大,人口与产业高度集聚,促进了大城市用地空间的巨大变化。经过30多年来的规划建设实践,在全球经济一体化的新形势下,对我国大城市发育机制与成长因素的综合分析,深刻认识到我国沿海城市成长发育的重要机制与因素,尤其是在工业化推动下,充分利用交通区位优势与交通走廊发展的动力及其城市经济集聚与扩散规律的支配作用。认识这些成长因素与发育机制有利于我国城市规划建设日益走向合理发展的轨道,按照科学发展观的思路,促进我国城市化走可持续发展的道路。
Urban spatial expansion is the physical form of urbanization, resulting from complicated element of urban growth. Since the open policy has been carried out, the big city' s space has extended rapidly because of fast economic development, concentration of foreign invest enterprises, establishment of development zones and real estate development. Taking the case of Suzhou as an example, the paper explored the patterns of big city's spatial expansion under globalization after reviewing the urban expansion cases in the recent thirty years both at home and abroad. 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 unreasoning expansion and facilitate urban healthy growth and sustainable development in China.