Influence mechanism of urban polycentric spatial structure on PM2.5 emissions in the Yangtze River Economic Belt, China

Liu, Peixian; Zhong, Fanglei; Yang, Chunlin; Jiang, Daiwei; Luo, Xijing; Song, Xiaoyu; Guo, Jingjie

doi:10.1016/j.jclepro.2022.132721

Cited by 21 publications

(10 citation statements)

References 31 publications

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“…Therefore, urban spatial structure pertains to the spatial distribution of population, resources, and economic activities within a city. It can be categorized into two types, which are monocentric and polycentric [13]. Monocentric spatial structure is characterized by an uneven distribution of economic activities, such as population, resources, and industries, with a dominant central core serving as the primary center of the city.…”

Section: Moderation Effect Of Urban Spatial Structurementioning

confidence: 99%

“…This exploration aims to provide rational guidance for the development of cities and urban agglomerations, harness the potential of urban spatial structure in fostering technological innovation, and more effectively curb haze pollution, thus ameliorating the prevailing state of environmental pollution in urban agglomerations. Optimizing urban spatial structure is an efficacious approach to environmental protection and urban spatial structure offers a more attainable alternative than attempting to curtail pollution emissions by reducing economic development and living standards [13].…”

Section: Introductionmentioning

confidence: 99%

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Technological Innovation, Urban Spatial Structure, and Haze Pollution: Empirical Evidence from the Middle Reaches of the Yangtze River Urban Agglomeration

Liu,

Deng,

et al. 2023

Energies

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The rapid economic growth of China has caused significant adverse effects on the environment. Meanwhile, technological innovation, a fundamental driver of economic development and social progress, plays a pivotal role in mitigating haze pollution. This study comprehensively examines the influence of technological innovation on haze pollution in the Yangtze River urban agglomeration, using the STIRPAT model and analyzing research data from 2004 to 2020. Additionally, the study investigates the specific moderating role of urban spatial structure in the relationship between technological innovation and haze pollution. The findings reveal that technological innovation in the middle reaches of the Yangtze River urban agglomeration can effectively curtail haze pollution, and its impact extends to surrounding areas through spillover effect. The polycentric urban spatial structure significantly enhances the haze-reducing effect of technological innovation in the region. Notably, in cities with a strong level of environmental regulation, the urban spatial structure plays a substantial role in augmenting the haze-reducing impact of technological innovation. The policy implications of this research underscore the importance of continuous improvement in technological innovation within the middle reaches of the Yangtze River urban agglomeration. To address haze pollution in future development, the adoption of a polycentric development strategy and the establishment of sound environmental governance policies are recommended.

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Section: Moderation Effect Of Urban Spatial Structurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Technological Innovation, Urban Spatial Structure, and Haze Pollution: Empirical Evidence from the Middle Reaches of the Yangtze River Urban Agglomeration

Liu,

Deng,

et al. 2023

Energies

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“…For this reason, in 2016, the YREB embarked on a comprehensive ecological environment management program, resulting in a general improvement in air quality. However, certain cities within the region continue to experience more pronounced air quality issues [41]. The YREB is a significant contributor to China's economic growth [42].…”

Section: Study Areamentioning

confidence: 99%

Multi-Scale Analysis of PM2.5 Concentrations in the Yangtze River Economic Belt: Investigating the Combined Impact of Natural and Human Factors

Wei

Liu

et al. 2023

Remote Sensing

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Air pollutants, primarily PM2.5, have inflicted significant harm on public health and sustainable urban development in the Yangtze River Economic Belt (YREB). Previous studies often neglected the coordinated measurement of PM2.5 human and natural factors in this area. Therefore, this paper focuses on the YREB. Using a geographic information system (GIS) platform, along with remote sensing and statistical data spanning from 2000 to 2020, this study employs spatial analysis to uncover the spatial-temporal characteristics of PM2.5 and its spatial agglomeration patterns. Furthermore, this study further employs the spatial panel Durbin model to investigate the natural and anthropogenic factors driving PM2.5 concentrations across multiple scales. The analysis of the results reveals an “M”-shaped change trend in PM2.5 concentrations within the YREB. PM2.5 concentrations exhibit significant spatial agglomeration characteristics, whereby most urban agglomerations are high-pollution areas. Moreover, the changes in PM2.5 concentrations are jointly influenced by several factors, including the secondary industry, urban built-up area, population density, annual precipitation, and NDVI. Furthermore, the dominant factors influencing PM2.5 concentrations in the three major urban agglomerations exhibit both similarities and differences. In addition, for effective governance coordination across regions, policymakers should diligently consider both the shared predominant factors and the varying factors specific to each region in the future. This study expands the research content of watershed PM2.5 collaborative governance, and further provides practical support for other watershed environmental governance and urban sustainable management.

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“…According to the theory of an agglomeration economy, the essence of a polycentric urban spatial structure is the relatively balanced distribution of various development factors among different cities in a region [ 50 , 51 ]. The reasonable urban spatial structure of UA is considered as an effective way to improve the ULUE.…”

Section: Mechanism Analysis and Research Hypothesismentioning

confidence: 99%

Influence Mechanism of Polycentric Spatial Structure on Urban Land Use Efficiency: A Moderated Mediation Model

Zhu

Wang

Peng

et al. 2022

IJERPH

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Under the background of green development, the spatial structure of urban agglomerations (UA) has an important impact on urban land use efficiency (ULUE), but few studies have explored the impact mechanism between the two. This research explores the impacts of polycentric development on ULUE of UA, using data for 140 cities in China’s top ten key UA covering the period from 2004–2019. The linkage between polycentric development and ULUE is explored by estimating models of determinants of ULUE. This research also examines the mechanism of the polycentric spatial structure of UA on ULUE by using a moderated mediation model. The main findings of the research can be concluded as below. The eastern UAs show a mostly polycentric spatial structure, whereas the central and western UAs show a weak polycentric spatial structure. The polycentric spatial structure of UA has a positive impact on ULUE. An inverted U-shape curve depicts the relationship between the polycentric spatial structure of UA and ULUE. However, the mediating variables, integration of industrial structure and factor mobility have a positive and partially mediating effect between the polycentric spatial structure of UA and ULUE. The infrastructure level has a positive U-shaped regulation effect, in which the impact coefficient of transport infrastructure is more significant. These findings provide empirical evidence for the coordinated development of China’s regional space planning and ULUE.

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Influence mechanism of urban polycentric spatial structure on PM2.5 emissions in the Yangtze River Economic Belt, China

Cited by 21 publications

References 31 publications

Technological Innovation, Urban Spatial Structure, and Haze Pollution: Empirical Evidence from the Middle Reaches of the Yangtze River Urban Agglomeration

Technological Innovation, Urban Spatial Structure, and Haze Pollution: Empirical Evidence from the Middle Reaches of the Yangtze River Urban Agglomeration

Multi-Scale Analysis of PM2.5 Concentrations in the Yangtze River Economic Belt: Investigating the Combined Impact of Natural and Human Factors

Influence Mechanism of Polycentric Spatial Structure on Urban Land Use Efficiency: A Moderated Mediation Model

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