On the urban agglomeration scope definition method:A case study of the Yangtze River Delta
SUN Wei;YAN Dongsheng;WU Jiawei;Nanjing Institute of Geography and Limnology, CAS;Key Laboratory of Watershed Geographic Sciences, CAS;School of Economics, Nanjing University;University of Chinese Academy of Sciences;
Since China's reform and opening-up, with the increasingly rapid industrialization and urbanization process, urban agglomeration has become the main spatial component of the new-type urbanization. Urban agglomeration has also tended to be the most important agent of China to compete globally. Recently, China's central and local governments have paid special attention to the development of urban agglomeration through a series of regional plans and policies. For example, the "National New-type Urbanization Planning" has indicated that urban agglomeration should be the main form of new-type urbanization in transitional China. Many regional plans have been issued to promote the development of urban agglomeration, so as to reshape China's economic geography and regional strategies. Therefore, the definition and related research of the scope of urban agglomeration have been the subject of heated debates.Although the definition of the scope of urban agglomeration has been an important topic of scholarly attention, there are no generally accepted, efficient, and credible methodological system, as well as a set of techniques to identify urban agglomeration in the related literature.Based on the existing studies and geographical perspective, this paper highlights the advantages of the comprehensive analysis on natural-human factors. With regard to the methodologies, we aim to improve quantitative methods such as traditional gravitational models, traffic accessibility and financial connection networks, and we also combine some qualitative methods such as function oriented zoning, language-cultural geography and national strategy. In summary, this paper proposes an integrated method for defining the spatial scope of urban agglomeration. Taking the Yangtze River Delta, which includes Shanghai, Jiangsu, Zhejiang and Anhui, as an example, this paper conducts the qualitative analysis by using the methods such as function oriented zoning, language-cultural geographic relationship, and the requirements of national regional strategies. Furthermore, we also conduct the quantitative analysis by applying the methods such as economic gravity, traffic accessibility, and financial connection network. Then, we define the scope of the Yangtze River Delta urban agglomeration as a set of 26 cities, led by Shanghai, Nanjing, Hangzhou and Hefei. This paper will improve the effectiveness and precision for the scope definition of urban agglomeration by the combination of qualitative and quantitative analyses. And, this study will contribute to the innovations of related methodologies, which are useful for the planning of urban agglomeration especially the scientific definition of the scope of urban agglomeration scope.
【CateGory Index】： F299.27
【CateGory Index】： F299.27