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Carbon-Emission Density of Crop Production in China: Spatiotemporal Characteristics, Regional Disparities, and Convergence

Author

Listed:
  • Haoyue Wu

    (School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China
    The two authors contributed to the work equally and should be regarded as co-first authors.)

  • Wanqi Yan

    (College of Business and Tourism, Sichuan Agricultural University, Chengdu 611830, China
    The two authors contributed to the work equally and should be regarded as co-first authors.)

  • Xiangjiang Zheng

    (School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China)

  • Lei Zhou

    (School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China)

  • Jinshan Ma

    (School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China)

  • Lu Liu

    (School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China)

  • Yue Meng

    (College of Business and Tourism, Sichuan Agricultural University, Chengdu 611830, China)

Abstract

An analysis of carbon emissions of crop production provides paths for global warming mitigation. Existing studies have focused on the magnitude of the carbon emissions from crop production, which is unreasonable for inter-location comparison due to neglecting regional variations in cultivation technologies and planting scale. Different from the conventional idea, this paper estimated the carbon-emission density of crop production (CEDCP) based on carbon emissions per hectare of crop production. With the 30 Chinese provinces between 2000 and 2020 as the study area, temporal dynamics and spatial patterns of the CEDCP were explored, regional disparities of the CEDCP were discussed based on the Theil index, and the possibility of regional coordinated optimization for the CEDCP was explored by relying on the convergence tests. The results show that the average annual CEDCP in China was 1.462 t/hm 2 , reaching a peak of 1.576 t/hm 2 in 2015. The national carbon-emission densities of agricultural materials, rice fields, soil management, and straw burning were 0.492 t/hm 2 , 0.390 t/hm 2 , 0.189 t/hm 2 , and 0.391 t/hm 2 , respectively. In many provinces, the CEDCP increased first and then decreased, presenting a spatial pattern of high in the eastern region and low in the western region. Regional disparities of CEDCP shrank early but expanded later, and the disparities within the western region had always contributed considerably to the overall disparities. The CEDCP had shown σ- and β- convergence in both national and regional scales, and the convergence process had positive spillover effects. These findings suggest that inter-provincial cooperation may facilitate the CEDCP to converge.

Suggested Citation

  • Haoyue Wu & Wanqi Yan & Xiangjiang Zheng & Lei Zhou & Jinshan Ma & Lu Liu & Yue Meng, 2023. "Carbon-Emission Density of Crop Production in China: Spatiotemporal Characteristics, Regional Disparities, and Convergence," Agriculture, MDPI, vol. 13(5), pages 1-17, April.
    • Handle: RePEc:gam:jagris:v:13:y:2023:i:5:p:951-:d:1133079
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    References listed on IDEAS

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    Cited by:

    1. Yuan Tian & Xiuyi Shi, 2024. "Analysis of Dynamic Evolution and Driving Factors of Low-Carbon Utilization Efficiency of Cultivated Land in China," Agriculture, MDPI, vol. 14(4), pages 1-26, March.

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