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[1]Lyu Tiangui,Liang Hui,Chen Anying,et al.Spatiotemporal evolution characteristics and carbon balance zoning of carbon sources and sinks of farmland ecosystems in major grain-producing areas in the middle reaches of the Yangtze River[J].Research of Soil and Water Conservation,2025,32(06):337-347.[doi:10.13869/j.cnki.rswc.2025.06.036]

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Spatiotemporal evolution characteristics and carbon balance zoning of carbon sources and sinks of farmland ecosystems in major grain-producing areas in the middle reaches of the Yangtze River

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 32 Number of periods: 2025 06 Page number: 337-347 Column: Public date: 2025-10-20

Title:: Spatiotemporal evolution characteristics and carbon balance zoning of carbon sources and sinks of farmland ecosystems in major grain-producing areas in the middle reaches of the Yangtze River

Author(s):: Lyu Tiangui¹,Liang Hui¹,Chen Anying¹,Zhao Qiao²,Fu Shufei²; (1.School of Public Administration,Jiangxi University of Finance and Economics,Nanchang 330013,China;2.School of Digital Economics,Jiangxi University of Finance and Economics,Nanchang 330013,China)

Keywords:: carbon sources and sinks of farmland ecosystem; spatiotemporal characteristics; carbon balance zoning; major grain-producing areas in the middle reaches of the Yangtze River

CLC:: X24

DOI:: 10.13869/j.cnki.rswc.2025.06.036

Abstract:: [Objective] Exploring the spatiotemporal evolution patterns of carbon sources and sinks of the farmland ecosystems in the major grain-producing areas is crucial for promoting low-carbon agricultural production, ensuring food security, and providing a scientific basis for precise emission reduction and carbon sink enhancement strategies. [Methods] Using parameter estimation methods and GIS spatial analysis, this study evaluated the spatiotemporal evolution patterns of carbon sources and sinks in the farmland ecosystems of the major grain-producing areas in the middle reaches of the Yangtze River from 2012 to 2022, followed by a carbon balance zoning analysis. [Results](1) The carbon emissions from the farmland ecosystems in the major grainproducing areas of the middle reaches of the Yangtze River first increased and then decreased. From 2012 to 2017, the carbon sinks in the farmland ecosystems showed a slow growth, while the growth rate of carbon sinks accelerated significantly from 2017 to 2022. The regional differences in carbon emissions and carbon sinks were significant, and their spatial distribution remained relatively stable.(2) The carbon compensation rate in the major grain-producing areas in the middle reaches of the Yangtze River exhibited a fluctuating upward trend, with improvements in carbon productivity, energy efficiency, and carbon ecological carrying capacity. Regional differences had a significant impact on the carbon compensation rate.(3) The carbon compensation rate and carbon ecological carrying coefficient were higher in the western and southern regions and lower in the eastern and northern regions. Areas with high economic contributions from carbon emissions were mainly concentrated in the central part of the major grain-producing areas in the middle reaches of the Yangtze River. (4) The farmland ecosystems in the major grain-producing areas in the middle reaches of the Yangtze River could be divided into low-carbon maintenance zones, economic development zones, carbon sink development zones, and comprehensive optimization zones. [Conclusion] The carbon balance of farmland ecosystems in the major grainproducing areas in the middle reaches of the Yangtze River exhibits significant spatial differentiation and phased improvements. The zoning management strategy based on the synergistic regulation of carbon sources and sinks can effectively enhance regional low-carbon production efficiency.

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Last Update: 2025-12-10