|Table of Contents|

Study on the Structural Evolution and Influencing Factors of Urban Energy Level Network in the Yangtze River Delta Region(PDF)

《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

Issue:
2023年02期
Page:
34-43
Research Field:
地理学
Publishing date:

Info

Title:
Study on the Structural Evolution and Influencing Factors of Urban Energy Level Network in the Yangtze River Delta Region
Author(s):
Liu Yanghui1; 2; Yang Shan1; 2; Fan Qingyu3; Lin Jinping1; 2; Zhu Guanghao4
(1.School of Geography,Nanjing Normal University,Nanjing 210023,China)
(2.Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application,Nanjing 210023,China)
(3.School of Geography,Jiangsu Second Normal University,Nanjing 211200,China)
(4.School of Public Administration,Nanjing Normal University,Nanjing 210023,China)
Keywords:
urban energy level;  network structure;  spatial connection;  spatial-temporal evolution;  influencing factors;  Yangtze River Delta region
PACS:
F125; K921
DOI:
10.3969/j.issn.1001-4616.2023.02.005
Abstract:
The index system of urban energy level is constructed from four dimensions of innovation function, coordination function, openness function, and support function, and the comprehensive evaluation results of energy level is used to revise urban gravity model. The spatial connection characteristics of cities in the Yangtze River Delta region are analyzed, and QAP regression method is further used to analyze the influencing factors. The research results show that:(1)Since 2010, the overall urban energy level in the Yangtze River Delta region has been rising and developing towards a balanced situation. The spatial “center-periphery”form has been displayed, and many central cities such as Shanghai, Nanjing, and Hangzhou have formed “Z”high-value concentration areas, and low-energy cities are mainly distributed in the outer areas. In the urban energy level function system, the support function is the advantage dimension of high-quality regional development, and the coordination function is the short board dimension.(2)The connection degree of nodes in the urban energy level network in the Yangtze River Delta region is constantly strengthened. The spatial pattern of urban interaction and the pattern of urban energy level show spatial convergence, and the characteristics of multi-center spatial structure are constantly highlighted. The urban energy level network in the whole region presents a dense trend, and the robustness and accessibility of the network are improved. The concentration of urban nodes is stronger than the diffusion. Anhui Province shows the leading form of single nuclear radiation with Hefei as the center, while Jiangsu Province and Zhejiang Province show the leading form of multiple nuclear radiation with multiple cities as the center.(3)Many factors work together on the development of urban spatial connection. Economy, social, geographical location and spatial distance have significant influence on urban spatial connection.

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Last Update: 2023-06-15