数字经济能否降低农业碳排放?基于生态韧性和新型城镇化的调节作用

Can the Digital Economy Reduce the Agricultural Carbon Emissions?Based on Ecological Resilience and the Moderating Role of New Urbanization

  • 摘要:
    目的/意义 既有研究在测算农业碳排放时忽略了土壤管理、石灰施用和农田生物质燃烧等重要排放源,且缺乏城市尺度的农业碳排放测算与数字经济对其影响的探讨。通过分析数字经济对市域农业碳排放的影响,旨在弥补现有研究不足,以完善农业碳排放的城市尺度测算框架,为推动农业绿色低碳转型提供政策启示。
    方法/过程 基于2011—2021年中国280个城市层面数据,研究数字经济对市域农业碳排放的影响,并检验城市生态韧性和新型城镇化的调节作用。
    结果/结论 研究发现,(1)数字经济能降低农业碳排放,该结论经过一系列稳健性检验后依然成立;(2)异质性分析揭示,数字经济对产销平衡区、粮食主产区和粮食主销区,种植区和养殖区,京津冀、成渝、长三角、粤港澳大湾区和黄河流域,胡焕庸线以东部城市,中国东部和西部城市的农业碳排放具有显著抑制作用。(3)调节机制认为,城市生态韧性和新型城镇化强化了数字经济对农业碳排放的抑制作用。

     

    Abstract:
    Objective/Meaning The existing studies ignored the important emission sources such as soil management, lime application and farmland biomass burning when measuring the agricultural carbon emissions, and there was a lack of urban-scale agricultural carbon emissions measurement and discussion of the impact of digital economy on it. This paper aimed to analyze the impact of digital economy on the urban agricultural carbon emissions, so as to make up for the shortcomings of existing research, and improve the urban-scale measurement framework of agricultural carbon emissions, thus to provide policy implications for promoting the green and low-carbon transformation of agriculture.
    Methods/Procedures Based on the data of 280 Chinese cities from 2011 to 2021, the impact of digital economy on the urban agricultural carbon emissions was analyzed, and the moderating effects of urban ecological resilience and new-type urbanization were examined.
    Results/Conclusions The research found that: (1) The conclusion that the digital economy could reduce the agricultural carbon emissions was still valid after a series of robustness tests. (2) The heterogeneity analysis revealed that the digital economy had significant inhibitory effect on the agricultural carbon emissions in the production-consumption balance zones, major grain-producing regions, major grain-consuming regions, planting areas and aquaculture zones, the Beijing-Tianjin-Hebei region, Chengdu-Chongqing region, Yangtze River Delta, Guangdong-Hong Kong-Macao Greater Bay Area, Yellow River Basin, the cities east of the Hu Huanyong Line, as well as the eastern and western Chinese cities. (3) The moderating mechanism suggested that the urban ecological resilience and new-type urbanization strengthened the inhibitory effect of digital economy on the agricultural carbon emissions.

     

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