Spatial pattern and location evolution of urban logistics enterprises:Taking Suzhou as an example

This paper studies spatial pattern and evolution location of urban logistics enterprises and reveals its general laws. Through establishing logistics space and attribute database of Suzhou during 1990-2007,with GIS spatial correlation analysis module and visualization,this paper applies quadrat,spatial autocorrelation and hotspot analysis to study urban logistics geographic distribution and evolution. The research shows the following results.(1) In recent 20 years,generally the logistics enterprise distribution has been in a state of agglomeration,but as time goes by,the decline of BPI marks a weakening tendency,for the logistics enterprise distribution expands from few intensive centers to other aggregation centers,lacking global higher and lower value centers. Thus,the distribution displays evolution and migration.(2) Globally,the hotspot of logistics enterprise distribution shows apparent expansion and migration. First,the area of hotspot evolves from singleness to multiplicity,and expands from downtown to sub-center towns. Second,the spatial expansion of hotspots shows the striking characteristics of being along the roads(G312 National Road and Shanghai-Nanjing Road) and river(Yangtze River) .(3) Asset and non-asset logistics enterprises have significant differences in spatial distribution and pattern evolution:asset logistics hotspots have weakened in the downtown,further expansion and centrifugation,while non-asset logistics hotspots are mainly in the downtown,with obvious centralization and distribution along G312 National Road.