中文摘要：

：研究了全国52个特大城市1990 ～2008年城市空间结构的演变特征.研究表明：中国特大城市空间结构出现了多中心、多轴线的演变,多中心结构、带状结构和放射结构城市数量增多;城市空间结构多中心演变特征在1990 ～2000年表现更加明显,多轴线的演变特征在2000 ～2008年表现更加明显;城市空间结构的演变主要受城市空间规模扩大,城市产业结构类型和城市空间增长方式等因素的影响.最后基于1990～2008年中国特大城市空间结构演变的研究将中国城市空间结构演变归纳为单中心结构分化、轴线结构强化、单中心结构回归三种基本模式.

英文摘要：

Use datas of 52 mega-cities in China, evolution of urban spatial structure in Chinese mega-cities from year 1990 to 2008 has been studied. The results indicate： Firstly, urban spatial structure of Chinese mega-cities was transfer to poly-centric and muhi- axis, the quantity of cities with poly-eentric, banding, and radial structure were growing up. Secondly, Poly-centric transition of urban spatial structure was mainly appeared in the period from 1990 to 2000, and multi-axis transition was mainly appeared in the period from 2000 to 2008. Thirdly, urban spatial structure evolution of Chinese mega-cities was affected by factors of urban scale, industrial structure change, and different urban growth patterns. Finally, based on evolution of urban spatial structure in Chinese mega-cities from year 1990 to 2008, three basic evolution patterns of urban spatial structure were summarized which including divied pattern of single-eentric structure, strengthen pattern of axis structure, and returned pattern of single-centric structure.