从人口时空间结构看西安城市空间扩展态势

改革开放以来，随着我国城市的快速发展，城市人口时空间分布状况发生了重大的变化、通过对西安市人口时空间结构的分析，发现建国后至改革开放初期，城市中心区和郊区的人口密度都在增加，但中心区增长速度明显较快．进入20世纪90年代以后，中心区和近郊区的人口密度继续增加，但近郊区人口密度增长速度更快，已超过了中心区的增长速度，充分说明西安城市发展目前正处于郊区化的前兆期，开始步入城市发展的成熟阶段．在此分析判断的基础上，进一步分析了未来西安城市空间扩展态势，并提出了相应的发展对策．

Study on Urban Spatial Expansion of Xi'an from the time-space Structure of Population

Since the reform and opening to the outside world, great changes have taken place with the ~city's rapid growth, hence calling for a dramatic redistribution of the population. The time-space structure of population in Xi'an is analyzed in this paper. It is found that the population density of both central city and suburban area is on the rise, but the population in the suburban areas has risen more quickly from the founding of the People's Republic of China to the initial stage of reform and opening to the outside world. Since the 1990's, the population density in central city and outlying city is still rising, but the growth rate of latter become faster and faster. The analysis has proved that the city development of Xi'an has entered the preliminary stage of suburbanization, and is well on the way to the early mature stage of urban growth. On the basis of the analysis, the trend of urban spatial expansion is analyzed further, and the measures relevant to urban development are put forward.