scholarly journals Polycentric or monocentric, which kind of spatial structure is better for promoting the green economy? Evidence from Chinese urban agglomerations

Author(s):  
Yue Huang ◽  
Ruiwen Liao

Abstract The green economy has gained worldwide attention, especially in the urban agglomerations where population and economic activities are highly concentrated. However, what kind of urban agglomeration spatial structure is more conducive to promoting the green economy? No clear conclusions have been made. Here, we study the impact of urban agglomeration spatial structure on the green economy, and also reveal how urban agglomeration spatial structure influences the three subsystems of green economy. We find that: (1) urban agglomeration spatial structural evolution is closely related to green economy, while in the research period, most urban agglomerations are not located in the optimal range of the spatial structure that drives the green economy. (2) Towards polycentric spatial structure is contributive to green economic growth, however, the excessively polycentric could not benefit green economy. (3) The evolution of urban agglomeration spatial structure exerts heterogenous impacts on the three subsystems when green economy is decomposed into economic subsystem, resources subsystem, and environmental subsystem. Towards polycentric is more conducive to the improvement of economic subsystem and resource subsystem, while, the tendency to monocentric drives the environmental subsystem development. (4) Lastly, our conclusions enlighten the urban agglomeration development planning and spatial mode for approaching a better performance in green economy.

2020 ◽  
Vol 12 (18) ◽  
pp. 7550
Author(s):  
Jiao Li ◽  
Yongsheng Qian ◽  
Junwei Zeng ◽  
Fan Yin ◽  
Leipeng Zhu ◽  
...  

By shortening the transportation time between cities, high-speed rail shortens the spatial distance between cities and exerts a far-reaching influence on urban agglomerations’ spatial structures. In order to explore the influence of high-speed rail on the spatial reconstruction of an urban agglomeration in western China, this paper employs fractal theory to compare and analyze the spatial structure evolution of the Chengdu–Chongqing urban agglomeration in western China before and after the opening of a high-speed railway. The results show that after the completion of the high-speed railway, the intercity accessibility is improved. The Chengdu–Chongqing urban agglomeration’s spatial distribution shows a decreasing density from the central city to the surrounding areas. Furthermore, the urban system presents a trend of an agglomeration distribution. Therefore, strengthening the construction of high-speed rail channels between primary and medium-sized cities, as well as accelerating the construction of intercity railway networks and rapid transportation systems based on high-speed rail cities, would help develop urban agglomerations in western China.


2019 ◽  
Vol 11 (11) ◽  
pp. 3106 ◽  
Author(s):  
Wen Chen ◽  
Komali Yenneti ◽  
Yehua Dennis Wei ◽  
Feng Yuan ◽  
Jiawei Wu ◽  
...  

Urban spatial structure is a critical component of urban planning and development, and among the different urban spatial structure strategies, ‘polycentric mega-city region (PMR)’ has recently received great research and public policy interest in China. However, there is a lack of systematic understanding on the spatiality of PMR from a pluralistic perspective. This study aims to fill this gap by investigating the spatiality of PMR in the Yangtze River Delta Urban Agglomeration (YRDUA) using city-level data on gross domestic product (GDP), population share, and urban income growth for the period 2000–2013. The results reveal that economically, the YRDUA is experiencing greater polycentricity, but in terms of social welfare, the region manifests growing monocentricity. We further find that the triple transition framework (marketization, urbanization, and decentralization) can greatly explain the observed patterns. Although the economic goals are accomplished with better spatial linkages and early economic development policies, inequality in spatial distribution of public services and the continuing legacy of central planning remain barriers for the YRDUA to emerge as a successful PMR. The results of this research offer meaningful insights on the impact of polycentric policies in the YRDUA and support policymakers in the implementation of appropriate urban spatial development strategies.


2020 ◽  
Vol 217 ◽  
pp. 05001
Author(s):  
Olga Brel ◽  
Anna Zaytseva ◽  
Phillip Kaizer

In the current economic situation, the solution to the problems of diversification of mining regions is relevant not only in terms of economic outcome, but also the need to change the ecological situation in industrial regions towards its improvement. Diversification of the region’s economy is associated with the idea of expanding the range of economic activities and considered as a mechanism to reduce risks and mono-dependence of the regional economy. The study suggests that tourism could become one of the areas of diversification and greening of the mining region economy by the example of the Kemerovo region. The structure of the GRP and individual indicators characterizing the state of the tourism sector were analyzed to assess the impact of tourism on the diversification of the economy of the Kemerovo region. Despite the fact that the total share of the tourism sector has changed slightly over the 5 years, its multiplier effect has a positive impact on the state of the service sector and the economy of the entire region. It was confirmed by the results of the analysis. The optimistic scenario for the development of the Kemerovo region determines the large role of tourism in the diversification and greening of the region’s economy. The implementation of the conservative scenario that provides the supportive development of traditional sectors, does not exclude opportunities for the development of tourism, which will ensure the effective and long-term sustainable development of the Kuzbass.


2021 ◽  
Vol 283 ◽  
pp. 02026
Author(s):  
Yuan Zheng ◽  
Bo Yue ◽  
Xuesong Han ◽  
Zheng Li

At present, the trend of central cities leading the development of urban agglomerations and urban agglomerations driving regional development is becoming more and more significant. Based on the panel data of 16 cities in the Chengdu-Chongqing urban agglomeration from 2010 to 2015, this paper uses a fixedeffect model to study the relationship between industrial development and energy efficiency in urban agglomerations, central cities, and surrounding cities. The empirical results show that for the overall urban agglomerations, central cities and surrounding cities, the scale of the secondary industry has a negative correlation with energy consumption per unit of GDP. Industrial development will increase the total energy consumption, but it also contributes to energy efficiency. In order to achieve the goal of "carbon peak and carbon neutrality", cities must find a balance in development and seek ecological protection during development.


2020 ◽  
pp. 81-93
Author(s):  
Oksana V. Portna ◽  
Natalia Yu. Iershova

The article examines the significance and role of eco-management in the system of green economy as it is connected with the need to develop new scientific and methodological approaches to managerial decision-making aimed at ensuring resource-oriented production and economic activities of an organization. The purpose of the research is to develop management technologies for eco-management to build a green economy. The eco-management technologies are studied in the following areas: 1) an analysis and evaluation of statistical observations on economic development trends and identification of issues in resource conservation, 2) justification of the need for a new approach to managing organizations, namely considering an environmental component in the decision-making process, 3) the choice of resource-saving measures in terms of a limited financial budget, 4) algorithmic implementation of environmental management components as an important component of an organization's competitive strategy. The methodical approach to the choice of environmental measures and criteria of resource utilization completeness is suggested. This allows forming the information space as a basis for making management decisions in the field of ecological safety of industrial organizations. During the last decade, the main trends of economic development have confirmed the importance of resource efficiency as far as economic and environmental aspects, which has allowed to determine the impact of research results on the economy and the environment from the standpoint of sustainable development. To this end, practical recommendations for reusing industrial waste in the production activities of companies have been provided. Within the established system of principles, criteria, and factors of rational and efficient use of resources in the conditions of modern economy, the issues of identifying and revealing the features in the development of branch organizations within the mechanism of their resource efficiency have proved to be crucial and of paramount importance.


Author(s):  
Yaping Zhang ◽  
Jianjun Zhang ◽  
Ke Wang ◽  
Xia Wu

The COVID-19 has caused a serious impact on the global economy, and all countries are in a predicament of fighting the epidemic and recovering their economies. Aiming to discuss the impact of the COVID-19 on the economic resilience of urban agglomerations, the economic data of each quarter from June 2019 to September 2020 of the Beijing–Tianjin–Hebei Urban Agglomeration are selected, and the economic development index (EDI) is calculated based on the entropy method. Combining the fundamental conditions of urban agglomerations and industrial policies during the COVID-19, urban economic resilience is discussed by the changing trend of the economic development index (EDI) and dividing into resistance and restoration. The results show that: (1) The economic development level of the urban agglomeration has been affected by the epidemic and has changed significantly. The change of endogenous power is the main cause of change; (2) During the outbreak of the COVID-19, the economic resilience of the Beijing–Tianjin–Hebei urban agglomeration shows four different development types: high resistance and restoration, high resistance but low restoration, low resistance but high restoration, low resistance and restoration cities; (3) High resistance but low restoration, low resistance but high restoration, and low resistance and restoration cities influence each other, but the relationship between cities is mainly dependent; (4) The economic restoration within the urban agglomeration forms a synergy, which promotes the economic recovery and development of the urban agglomeration during the recovery period of the COVID-19. Urban agglomerations should enhance the combined effect of resistance and increase the impact of high resistance and restoration cities on surrounding cities in the future.


2018 ◽  
Vol 8 (1) ◽  
pp. 463-469
Author(s):  
Elżbieta Radziszewska-Zielina ◽  
Grzegorz Śladowski ◽  
Ewelin Kania

Abstract The process of constructing structures and the selection of technology is difficult due to a series of highly varied conditions - which are often difficult to foresee - associated with the construction of a building within a city centre. The goal of the article is the performance of a structural analysis of the most commonly occurring conditions that need to be considered in the context of the selection of a technology of constructing buildings in the centre of an urban agglomeration. Based on a literature study that had been performed, aswell as on a survey study performed on expects, the authors listed and characterised conditions that occur during the construction of structures in the centres of urban agglomerations. Afterwards, experts determined the impact of these factors and their mutual relations in the context of the selection of the technology of the construction of said structures. In order to determine the involvement and the role of the factors in the context of the selection of a technology of the construction of a structure, as well as its analysis, the authors used the WINGS (Weighted Influence Non-linear Gauge System) modelling and structural analysis method. This method takes into account both direct, as well as indirect relations between these factors. The study contained in the article constitutes a basis for the development of a comprehensive systemic approach supporting the decision-making process associated with the selection of a construction technology for a building to be built in the centre of an urban agglomeration.


2021 ◽  
Vol 13 (18) ◽  
pp. 3639
Author(s):  
Xiong He ◽  
Yongwang Cao ◽  
Chunshan Zhou

The rapid development of the urban city has led to great changes in the urban spatial structure. Thus, analyses of polycentric urban spatial structures are important for understanding these kinds of structures. In order to accurately evaluate the polycentric spatial structure of urban agglomerations and judge the differences between the actual development situation and overall planning of urban agglomerations, this study proposes a new method to identify the polycentric spatial structure of urban agglomerations in the Pearl River Delta based on the fusion of nighttime light (NTL) data, point of interest (POI) data, and Tencent migration data (TMG). In the first step, the NTL, POI, and TMG data are fused via wavelet transform; in the second step, Anselin local Moran's I (LMI) and geographically weighted regression (GWR) were used to identify the main centers and subcenters, respectively. In the third step, the accuracy of the results of this study was further verified and discussed in the context of overall planning. The results show that the accuracy of urban polycenter identification via LMI and GWR after data fusion was 92.84%, and the Kappa value was 0.8971, which was higher than the results of polycenter identification via the traditional relative threshold. After comparing the identification results with the overall planning, firstly, we see that the fusion of multi-source big data can help to accurately evaluate the polycentric spatial structure within the urban agglomeration. Secondly, the fusion of dynamic data and static data can help identify the polycentric spatial structure of urban space more accurately. Therefore, this study can provide a new design for urban polycentric spatial structures, and further provide a reliable reference for the spatial optimization of urban agglomeration and the formulation of regional spatial development policies.


2021 ◽  
Vol 12 (3) ◽  
pp. 789-819
Author(s):  
Li He ◽  
Jian’ge Tao ◽  
Ping Meng ◽  
Dan Chen ◽  
Meng Yan ◽  
...  

Research background: Previous studies on the economic and social development of urban agglomerations mostly focus on a single primacy comparative analysis and efficiency evaluation. Spatial structure differentiation is an important feature of urban agglomeration. The lack of economic and social analysis on the spatial structure makes it impossible to determine the development positioning of each city in the urban agglomeration, which affects the sustainable economic devel-opment ability of these areas. Purpose of the article: The objective of the article is to analyze the spatial development law and experience of urban agglomeration, this study explores the practice of economic and population spatial structure of city areas in China. For this purpose, CPUA and its central city Zhengzhou was taken as an example, the spatial gradient structure of example was analyzed. Methods: Using economic and population data of 32 cities in this region, growth pole theory, and pole-axis theory, the economic and population spatial structure of urban agglomeration, the spatial gradient structure of central cities in urban agglomerations were analyzed with the method of cluster about radiation index. Findings & value added: (1) In the process of the formation of CPUA, the geo-graphical spatial pattern plays a decisive role in economic and social development. This is an experience from developing countries. (2) CPUA presents a gradient development pattern with Zhengzhou as the center, and economic and social development gradually radiates to the metropolitan area, the core development area, and the character development demonstration area. (3) The economic and social gradients of Zhengzhou, the central city, present the hierarchy rules and characteristics which are driven by the Beijing-Guangzhou-Railway axis and the Longhai-Railway axis. (4) The central city of Zhengzhou still presents insufficient primacy in regional development, which shows that Zhengzhou accounts for 6% of the population of the Central Plains Economic Zone and 14% of GDP, and insufficient agglomeration. Different countries at different stages of economic development have different urban agglomeration development models. The conclusions from China provide new decision-making ideas and methods for spatial structure research and development strategy analysis of urban agglomerations.


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