Coupling relationship between commercial spatial structure and population based on the point pattern analysis and coupling model: A case study in Beijing

摘要

On the basis of the locations of all the networks extracted from POI data in Beijing, this paper used the point pattern analysis and the construction of the model to investigate the pattern of different formats of networks in Beijing, and the of networks and on the scale of housing block. This research takes the central of Beijing city and suburban areas as the study area. The results show that: ① Shopping malls, supermarkets and convenience stores are all agglomeration types. And the clustering districts distribution of different formats of networks varies in Beijing. The gathering areas of most formats of networks distributed mainly within the Fourth Ring Road. ②The L (d) curve shows that shopping malls and convenience stores belongs to the inverted 'U' type, which indicates outlets gathered first, and then tended to dispersed within a certain range. The curve of supermarket shows a rising type, indicating that with the increasing distance radius, the convergence degree gradually increased. ③There are still many mismatches in the pattern and on the housing block scale. Senior facilities and common living facilities are both poor in the peri-urban areas. At the same time, there are also some 'blind spot' which are low with in the inner city.