城市剖面分析的方法和实证

Analyses method and demonstration on city section

提出了城市剖面概念。城市剖面主要反映了城市内部发展水平的差异。通过对城市剖面沿程的空间实体信息和行人社会属性信息的观测研究,可以定量分析城市内部发展过程,为研究城市演变、地域级差及空间扩展提供新方法。以大连市为例,选择长江路—黄河路为剖面线,利用主成分分析方法得到剖面各观测点的城市综合发展指数分布,并对城市发展中的景观建设和社会人文两大系统的协调度进行分析和评价。结果表明:(1)沿城市剖面线可将大连城市划分为三部分:城市发展综合指数最高的城心地区;指数较高的中间市区;指数低于平均水平的外围市区。(2)大连市景观与人文两大系统的协调度由高到低依次是城心地区、外围市区、中间市区。

This paper has proposed the urban section conception. City section is that one road hatch direction incisions along the city, which can show the building altitude, neighborhood landscape, city supporting facilities, residences＇social humanity and pedestrian society attribute information on both sides of what is happening. The urban section has mainly reflected the different levels of the urban development. Through the study of spatial entity information and pedestrian social attribute infor- mation along the urban section, we can analyze the urban evolution quantitatively, which is of important theoretic and practical meanings to urbanization research. City section curve, the connection and difference between landscape and humanity, can help urban planning and building. Meanwhile, city section quantizing research brings physiographic research method to human geography. It has offered the new method for studying the city, the region＇s difference and the spatial expansion. Taking Dalian as an example, choosing Changjiang River Road and Yellow River Road as the section, this paper analyzes the comprehensive development index using the princi- pal components method. Meanwhile, it combines the same method with coordination de- gree functions to analyze the cityscape--social humanity condition in the city. The result shows. （1）We can divide Dalian into three parts along the urban section. the heart area--the highest comprehensive developed level;the middle area--higher level; the peripheral area--the lowest level. （2）The sequencing of coordination degree between the cityscape and social humanity condition in Dalian is. the heart area, the peripheral are- aed and the middle area.