Spatiotemporal Differences of Agricultural Carbon Income and Expenditure, and Carbon Compensation Potential of Counties in Hunan Province
Journal Title: Bulletin of Soil and Water Conservation - Year 2023, Vol 43, Issue 5
Abstract
[Objective] The temporal and spatial differences of agricultural carbon budget and carbon compensation potential were analyzed based on the dual perspectives of carbon emission and carbon absorption in order to provide a theoretical reference for the comprehensive green transformation and coordinated development of agriculture in Hunan Province. [Methods] Exploratory spatial data analysis, absolute β convergence, parameter comparison, and GIS spatial analysis were used to empirically analyze the spatial and temporal differences of the agricultural carbon budget, spatial correlation and convergence characteristics of the carbon compensation rate, and regional differences in agricultural carbon compensation potential of counties in Hunan Province. [Results] The overall agricultural carbon emissions of counties in Hunan Province exhibited a structural form of “higher value areas in the center, and gradually decreased outwards”. Farmland soil was the main source of carbon emissions. The agricultural carbon emission intensity of counties exhibited a pattern of “higher in the southwest, lower in the northeast” and significantly decreased year by year. The overall agricultural carbon sequestration in the counties exhibited a spatial pattern of “higher in the east, central, and north regions, lower in the southwest”. Agricultural carbon sequestration capacity gradually increased across the region. Rice contributed the most to agricultural carbon sequestration, and agricultural carbon absorption intensity significantly increased and its spatial pattern significantly changed. The agricultural carbon compensation rate in the counties was a net carbon source, with significant positive spatial correlation and convergence, and the spatial clustering and correlation characteristics were obvious. The potential of agricultural carbon compensation in the counties showed a significant imbalance in space, with the proportion of medium and higher carbon compensation counties reaching 60.66%, indicating that the agricultural carbon compensation rates of counties in Hunan Province were lower, thous there was still a large potential for increasing carbon compensation. [Conclusion] Regional cooperation should be further strengthened, and green transformation should be jointly promoted by interested parties who should give full attention to the radiation driving effect of agricultural carbon compensation rate hot spots in order to maintain the development of excellent low-carbon agriculture in regions with higher agricultural carbon compensation capacity. The future work should focus on the development of green agriculture in regions with medium and high carbon compensation potential, and on narrowing the development gap of low-carbon agriculture in all Hunan Province.
Authors and Affiliations
Chaoyue Han, Xianchao Zhao, Yijue Hu, Xiaoxiang Zhang
Keywords
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- EP ID EP762720
- DOI 10.13961/j.cnki.stbctb.2023.05.040
- Views 9
- Downloads 0
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