The impact of digital economy on carbon emissions from grain cultivation and its spatial spillover effects——Panel data analysis based on 41 cities in the Yangtze River Delta
Studying the impact and spatial spillover effect of the digital economy on carbon emissions from grain cultivation,revea-ling the mechanism of the digital economy in the process of carbon emission reduction and helping to deepen research on carbon emis-sions from grain cultivation.It has important practical significance for exploring the formulation of grain emission reduction and carbon reduction policies under the"dual carbon"goal.Based on the panel data of 41 cities in the Yangtze River Delta region,the entropy val-ue method was used to calculate the level of digital economy,study the spatio-temporal characteristics of the digital economy and car-bon emissions from grain cultivation from 2011 to 2020,and construct a spatial panel Durbin model to analyze the impact of the digital economy on carbon emissions from grain cultivation.The results indicated that:①There were significant differences in the level of the digital economy in space,with the level of the digital economy in the central and southern regions was significantly higher than that in the northern region,and after 2015,the level of the digital economy in most regions had significantly increased,and the overall distribu-tion was characterized by a ring-shaped distribution centered on the core cities of Shanghai,Hangzhou,and Nanjing,and decreasing gradually to the periphery.②There were significant spatial differences in carbon emissions from grain cultivation,with high-value areas concentrated in the northern region and low-value areas mainly distributed in the central and southern regions.The spatial clustering characteristics of carbon emissions from grain cultivation had undergone significant changes,with the northern regions were mostly high-high-clustering areas and the central and southern regions were mostly low-low-clustering areas,and the high-high-clustering area and low-low-clustering area were both on the trend of expanding.③The digital economy,grain production efficiency,and grain cultivation structure had obvious inhibiting effects on carbon emissions from grain cultivation.The level of agricultural economic devel-opment and labor scale had inhibiting effects on carbon emissions from grain cultivation,but they were not obvious.In the future,differ-entiated carbon emission reduction policies should be formulated based on the carbon emissions from grain cultivation and the develop-ment of digital economy in different cities,and policy cooperation and technical exchanges among cities should be strengthened,so as to promote the in-depth integration of the digital economy and grain production fields.The research and development of low-carbon in-put elements and green low-carbon technologies,rational planning of grain cultivation structure,promotion of efficient and intensive u-tilization of infrastructure and resources,the development of modern agriculture,and the overall reduction of carbon emissions from grain cultivation in the Yangtze River Delta region.
digital economycarbon emissions from grain cultivationspatial panel Durbin modelYangtze River Delta region
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