RESEARCH ON THE METHOD OF QUANTIFYING THE SPATIAL BOUNDARY OF METROPOLITAN REGIONS
提出了两种量化都市区空间边界的方法，即基于产业的经济空间和基于人口流动的经济空间，并推荐后者。通过该方法估算了中国30个都市区的空间范围，并以北京为例结合道路可达性详细分析了其边界呈锯齿状。
The metropolitan regions are serving as the important carrier for the urbanization in China now,but how to quantify its spatial boundary remains yet to be improved.Based on the review of concept and the current quantification method of metropolitan regions,and considering the development stage of metropolitan regions in China at the same time,the paper put forward two implementable methods of delineating metropolitan regions,i.e.①the industry-based economic space,②the population mobility-based economic space.Since industry-based urban economy is usually quite diversified and varies in spatial scope for different industries,the people mobility-based method is suggested.By applying this method,the author estimates roughly the spatial scope to the identified 30 metropolitan regions in China.Combined with the road accessibility,the author also applies this method into the case of Beijing metropolitan region in a detail by using GIS buffer technology.It shows that the boundary of Beijing metropolitan region in fact could be a shape of saw teeth.