中文摘要：

地铁作为现代城市轨道交通规划的重要组成部分,是重塑城市空间格局的手段之一。本文运用Arc GIS和SPSS软件进行绘图和均值分析,建立时间通达性矩阵并且计算地铁的时间通达性系数,从空间规模、中心体系、功能布局来探索福州地铁1~5号线建成后对主城区空间格局的潜在影响。结果显示：地铁建成后,福州主城区的空间规模将扩增且空间形态将向东部和南部拓展,并形成五类通达性空间差异等级区;城市同心圆结构模式将强化,城市中心将适度转移;城市商业布局将因地铁枢纽站点的影响而形成不同等级的商圈,但在地铁对住宅功能布局方面的影响相对于商业圈层较弱,需要参考更多影响因子。

英文摘要：

As an important part of modern urban rail transit planning, metro is one of the methods to rebuild the urban spatial pattern. On the base of the GIS and SPSS analysis, this paper establishes the matrix of time accessibility to calculate the time accessibility＇s coefficient of metro. Moreover, it analyzes the impact of metro of line 1 to line 5 on spatial structure of Fuzhou＇s main urban area from three aspects, which are the urban spatial scale, the urban center system and the urban function layout. There are three main conclusions in this paper. Firstly, Fuzhou urban spatial scale will amplify after the completion of the metro system, and the direction of urban morphology expands to the south and the east. What＇s more, there will form five level ranking areas of spatial difference. Secondly, Fuzhou metro will play a key role of urban spatial structure pattern, which strengthens the concentric structure mode of urban. But the center of main urban area will transfer moderately.Thirdly, Fuzhou metro has an essential impact on the urban spatial function layout. The urban commercial layout will form different levels of commercial area by the influence of the metro hub site. But the impact on the layout of residential function is relatively weak, which needs to refer to more variable factors.