The evolution of spatial and size distribution in the quantity of Chinese urban enterprises
HU Dingli1,2， GUI Zhipeng2,3， LI Rui1,2， WU Huayi1,2
1.State Key Laboratory of Information Engineering in Surveying， Mapping and Remote Sensing， Wuhan University， Wuhan 430079， China；2. Collaborative Innovation Center of Geospatial Technology， Wuhan 430079， China；3. School of Remote Sensing and Information Engineering， Wuhan University， Wuhan 430079， China
Abstract：Previous researches have analyzed urban scales in terms of population， area and gross domestic product， but few studies have addressed the scale of enterprise agglomeration in these areas. In this paper， the gap was filled by investigating the spatial distribution and size distribution of enterprises for more rational development plans in rapidly growing municipalities. (1) The results of spatial distribution indicate that Chinese enterprises are distributed unevenly and that most enterprises are located in southeast and inland cities. The southeast part of China， as delineated by the Hu Line， contains about 95 percent of enterprises while taking up only 43 percent of territory. Annual growth rates of enterprise quantity in southeast cities are greater than those in northwest ones， however， cities in Heilongjiang and Xinjiang don't comply with the law. (2) The results of size distribution demonstrate that three urban primacy indexes are far less than the ideal values. The frequency distributions of urban enterprises follow Zipf's law on the whole， but three Zipf dimensions are consistently less than the ideal value. Nevertheless， these values come closer to the ideal value. Thus it is able to be inferred that enterprises are concentrated in middle-rank cities and are approaching the ideal distribution state. Based on the fractal theory， cities are divided into three scale-free intervals. The first scale-free interval contains around 90 percent of cities， with enterprises concentrated in middle-rank cities. In contrast， enterprises are centralized in high-rank cities in the second and third scale-free intervals. From the perspective of spatial distribution and size distribution of enterprises， our research contributes to better understanding on the present situation and tendency of enterprise distribution in China to support the optimization of productivity layouts and determination of reasonable urban scales.
胡定利,桂志鹏,李锐,,吴华意,. 中国城市企业数量空间分布及规模分布演变[J]. 华中师范大学学报(自然科学版), 2018, 52(3): 393-399.
HU Dingli,GUI Zhipeng,LI Rui,WU Huayi,. The evolution of spatial and size distribution in the quantity of Chinese urban enterprises. journal1, 2018, 52(3): 393-399.
2018, Vol. 52 
