Shrinking cities, urban expansion, and air pollution in China: A spatial econometric analysis

Qiang, Wei; Lin, Ziwei; Zhu, Pengyu; Wu, Kang; Lee, Harry F.

doi:10.1016/j.jclepro.2021.129308

Cited by 28 publications

(9 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…SGCs and SSCs show a trend of first rising and then developing steadily. This differs from Xiao et al [ 30 ] but supports Qiang et al [ 42 ], namely, that air pollution is reduced in shrinking cities. RGCs have developed economies and high urbanization levels, which all contribute to increases in carbon emissions.…”

Section: Resultssupporting

confidence: 43%

“…Second, in terms of the influencing factors of carbon emissions, this study focuses on social factors, such as population, economy, and technology. In fact, urban growth and shrinkage, as a comprehensive reflection of population, economic, and social changes, have also been proven to have an impact on carbon emissions and environmental conditions [ 31 , 42 ]. In the future, we will further explore the impact of urban growth and shrinkage on carbon emissions.…”

Section: Conclusion and Policy Implicationsmentioning

confidence: 99%

See 1 more Smart Citation

Carbon-Emission Characteristics and Influencing Factors in Growing and Shrinking Cities: Evidence from 280 Chinese Cities

Tong

Guo

Duan

et al. 2022

IJERPH

View full text Add to dashboard Cite

The CO2 emission-mitigation policies adopted in different Chinese cities are important for achieving national emission-mitigation targets. China faces enormous inequalities in terms of regional economic development and urbanization, with some cities growing rapidly, while others are shrinking. This study selects 280 cities in China and divides them into two groups of growing cities and two groups of shrinking cities. This is achieved using an index called “urban development degree,” which is calculated based on economic, demographic, social, and land-use indicators. Then, the 280 cities’ CO2 emission characteristics are examined, and extended STIRPAT (stochastic impacts by regression on population, affluence, and technology) is used to verify the influencing factors. We find that rapidly growing cities (RGCs) present a trend of fluctuating growth in CO2 emissions, rapidly shrinking cities (RSCs) show an inverted U-shaped trend, and slightly growing (SGCs) and slightly shrinking cities (SSCs) show a trend of rising first, followed by steady development. Moreover, for growing cities, the population, economy, and proportion of tertiary industry have positive effects on carbon emissions, while technology has negative effects. For shrinking cities, the population and economy have significant positive effects on carbon emissions, while technology and the proportion of tertiary industry have negative effects.

show abstract

Section: Resultssupporting

confidence: 43%

Section: Conclusion and Policy Implicationsmentioning

confidence: 99%

Carbon-Emission Characteristics and Influencing Factors in Growing and Shrinking Cities: Evidence from 280 Chinese Cities

Tong

Guo

Duan

et al. 2022

IJERPH

View full text Add to dashboard Cite

show abstract

“…The spatial autoregressive conditional heteroscedasticity (ARCH) model was adopted to analyze the socioeconomic variation in PM 2.5 pollution in Chinese cities, and it was found that economic development, the secondary industry, foreign direct investment (FDI), population density, and urbanization affect PM 2.5 pollution and produce a heterogeneous effect [ 21 ]. Similar studies also include Liu et al (2020b) [ 22 ], Qiang et al (2021) [ 23 ], and Halim et al (2020) [ 24 ]. It has also been proven that regional natural conditions affect air pollutant levels [ 25 ].…”

Section: Introductionmentioning

confidence: 70%

Spatiotemporal Regularity and Socioeconomic Drivers of the AQI in the Yangtze River Delta of China

Yan

Chen

Lei

et al. 2022

IJERPH

View full text Add to dashboard Cite

Air pollution has caused adverse effects on the climate, the ecological environment and human health, and it has become a major challenge facing the world today. The Yangtze River Delta (YRD) is the region with the most developed economy and the most concentrated population in China. Identifying and quantifying the spatiotemporal characteristics and impact mechanism of air quality in this region would help in formulating effective mitigation policies. Using annual data on the air quality index (AQI) of 39 cities in the YRD from 2015 to 2018, the spatiotemporal regularity of the AQI is meticulously uncovered. Furthermore, a geographically weighted regression (GWR) model is used to qualify the geographical heterogeneity of the effect of different socioeconomic variables on the AQI level. The empirical results show that (1) the urban agglomeration in the YRD presents an air pollution pattern of being low in the northwest and high in the southeast. The spatial correlation of the distribution of the AQI level is verified. The spatiotemporal regularity of the “high clustering club” and the “low clustering club” is obvious. (2) Different socioeconomic factors show obvious geographically heterogeneous effects on the AQI level. Among them, the impact intensity of transportation infrastructure is the largest, and the impact intensity of the openness level is the smallest. (3) The upgrading of the industrial structure improves the air quality status in the northwest more than it does in the southeast. The impact of transportation infrastructure on the air pollution of cities in Zhejiang Province is significantly higher than the impact on the air pollution of other cities. The air quality improvement brought by technological innovation decreases from north to south. With the expansion of urban size, there is a law according to which air quality first deteriorates and then improves. Finally, the government should promote the upgrading of key industries, reasonably control the scale of new construction land, and increase the cultivation of local green innovative enterprises.

show abstract

“…Such as urban shrinkage and the increase of air pollution degree had negative relationships, directly and indirectly. Local economic growth had a positive spatial spillover effect on air quality improvement in neighboring cities, while population factors had a negative effect (Qiang et al, 2021).…”

Section: Research Progress On the Impact Of Urban Shrinkage On The Ur...mentioning

confidence: 96%

Progress and major themes of research on urban shrinkage and its eco-environmental impacts

2023

View full text Add to dashboard Cite

Urban shrinkage is the process of population loss, industrial and functional decline, and eco-environmental deterioration due to various natural and human factors that occur once a city’s development reaches a certain point. It is an external manifestation of positive or negative changes in an urban economy, society, culture, resource use, and sustainability. Urban shrinkage is a new feature of global urbanization as well as a frontier of international and Chinese research. It has attracted widespread attention from academics in China and overseas, becoming an emerging trend that has spread from developed countries to underdeveloped ones. Research on and responses to urban shrinkage have also become new tasks of China’s new urbanization strategy. Our review of the existing literature reveals that there are significant temporal and spatial differences in research by Chinese and overseas scholars on urban shrinkage. Urban shrinkage studies have paid scant attention to interactions with the eco-environment, with analyses of urban shrinkage mechanisms and factors largely focusing on economic and social development factors; and urban shrinkage index analyses have tended not to include eco-environmental quality and environmental pollution indicators. The key tasks for future urban shrinkage research include the following: to conduct in-depth research on the mechanisms and driving factors of urban shrinkage to reveal the essence of urban shrinkage; to discover the principles behind interactions between urban shrinkage and the eco-environment, as well as to analyze the eco-environmental effects of urban shrinkage; to construct an index system for evaluating the extent, monitoring and providing warnings of, and containing urban shrinkage; and to research urban shrinkage coping strategies under different circumstances and carry out experiments and demonstrations according to local conditions.

show abstract

Shrinking cities, urban expansion, and air pollution in China: A spatial econometric analysis

Cited by 28 publications

References 41 publications

Carbon-Emission Characteristics and Influencing Factors in Growing and Shrinking Cities: Evidence from 280 Chinese Cities

Carbon-Emission Characteristics and Influencing Factors in Growing and Shrinking Cities: Evidence from 280 Chinese Cities

Spatiotemporal Regularity and Socioeconomic Drivers of the AQI in the Yangtze River Delta of China

Progress and major themes of research on urban shrinkage and its eco-environmental impacts

Contact Info

Product

Resources

About