Volume 36 Issue 4
Apr.  2023
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LIANG Gui, LIN Yuesheng, FANG Fengman. Temporal and Spatial Effects of Carbon Emissions in the Yangtze River Delta from the Perspective of Environmental Regulation[J]. Research of Environmental Sciences, 2023, 36(4): 848-856. doi: 10.13198/j.issn.1001-6929.2023.01.03
Citation: LIANG Gui, LIN Yuesheng, FANG Fengman. Temporal and Spatial Effects of Carbon Emissions in the Yangtze River Delta from the Perspective of Environmental Regulation[J]. Research of Environmental Sciences, 2023, 36(4): 848-856. doi: 10.13198/j.issn.1001-6929.2023.01.03

Temporal and Spatial Effects of Carbon Emissions in the Yangtze River Delta from the Perspective of Environmental Regulation

doi: 10.13198/j.issn.1001-6929.2023.01.03
Funds:  National Natural Science Foundation of China (No.41977402); Scientific Research Project of Anhui Provincial Education Department, China (No.yjs20210185); 2021 Leading Talents Team Project of Anhui Province, China
  • Received Date: 2022-10-22
  • Rev Recd Date: 2022-12-27
  • Available Online: 2023-04-18
  • In the context of the ‘double carbon target’, the relationship between environmental regulation and carbon dioxide emissions has become an increasingly popular topic of discussion in the academic circles. Based on the panel data of 41 cities in the Yangtze River Delta Region, this paper demonstrated the carbon dioxide emissions and environmental regulation intensity of 41 cities in the Yangtze River Delta Region from 2006 to 2019 using kernel density analysis and GIS spatial analysis. The carbon dioxide emission coefficient method and the environmental regulation intensity composite index were used to show the spatial and temporal patterns of environmental regulation intensity and carbon dioxide emissions levels in 41 cities in the Yangtze River Delta Region. The spatial and temporal effects of environmental regulation on carbon dioxide emissions were investigated using the Dynamic Spatial Durbin Model (DSDM). The results show: (1) There was an increase in the Yangtze River Delta Region's environmental regulation intensity index from 0.15 in 2006 to 1.25 in 2019. The kernel density curve showed that there was a spatial polarization in environmental regulation intensity, with a shift in the direction of the index from the southeast to the northwest. (2) From 2006 and 2019, the total carbon dioxide emissions in the Yangtze River Delta Region fluctuated, increasing by 65.07% from 2006 to 2013, and only 4.20% from 2013 to 2019. Carbon dioxide emissions showed a spatial distribution pattern of high in the east and low in the west, forming a high-value concentration area of carbon dioxide emissions in the Shanghai-Suzhou region in 2006, and then expanding spatially and spreading to the northwest, showing a pattern of diffusion from the central cities to the surrounding area from 2013 to 2019. (3) In terms of short-term consequences, each 1% increase in the intensity of environmental regulation decreased carbon dioxide emissions by 0.152% in the city, while the carbon dioxide emissions increased by 0.062% in nearby cities. In terms of long-term consequences, each 1% increase in the intensity of environmental regulations reduced carbon dioxide emissions by 0.254% in the city, and increased the carbon dioxide emissions in nearby cities by 0.110%. Therefore, the long-term effects of environmental regulations are stronger than their short-term effects. (4) Each city in the Yangtze River Delta should consider its own features and adopt acceptable environmental regulations and various low-carbon dioxide emission reduction strategies in order to increase the carrying capacity of resources and the environment and achieve a harmonious development of the relationship between people and land. The study showed that the overall growth rate of carbon dioxide emissions in the Yangtze River Delta slowed down, and the impact of environmental regulation intensity on carbon dioxide emissions was spatially heterogeneous.

     

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