Spatiotemporal evolution of carbon balance based on the enhanced two-step floating catchment area (E2SFCA) method in the Yangtze River Economic Belt, China

Renke Ji, Chao Wang (), Wei Wang, Siyuan Liao and Nengcheng Chen
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Renke Ji: Wuhan University
Chao Wang: Wuhan University
Wei Wang: Wuhan University
Siyuan Liao: Wuhan University
Nengcheng Chen: Wuhan University

Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, 2024, vol. 26, issue 4, No 32, 8979-9004

Abstract: Abstract Global warming is caused by rising carbon dioxide concentrations, while ecological and environmental issues are becoming increasingly evident. Many governments’ main objective in addressing climate challenges is to achieve carbon balance. Exploring the distribution and changing trends of carbon balance can contribute to carbon balance strategies. This study takes the Yangtze River Economic Belt (YREB) as the study area, analyzing the spatial and temporal dynamic changes in carbon emissions and carbon sequestration in the YREB from 2000 to 2017. The county-level supply–demand ratios and accessibility are calculated based on the enhanced two-step floating catchment method according to the dynamic flow radius. According to our experimental results, carbon emissions can achieve different degrees of carbon balance according to the flow radius. After carbon emissions flow between counties within the province, some provinces can realize the transition from carbon surplus to carbon balance. With the expansion of the flow radius and the increase in internal mobility, more counties can participate in carbon sequestration, and some provinces can achieve carbon neutrality after carbon emissions transfer across provinces. Hubei, Chongqing, Zhejiang, Hunan and other provinces with special carbon sequestration capacity are very sensitive to changes in the radius of carbon emission flow. In 2017, when the carbon emission flow radius is 50 km, the net carbon emission of the flow can be reduced by 3%. If the radius is increased to 200 km, the YREB can achieve carbon balance. This study can provide decision-making information for carbon emission ecosystem management in the YREB.

Keywords: Carbon emissions; Carbon sequestration; Yangtze River Economic Belt; Supply–demand ratio; Carbon emissions accessibility (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1007/s10668-023-03078-3

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