数字经济赋能农业绿色发展的碳减排效应

The Green Agricultural Development Empowered by the Carbon Emission Reduction Effect of Digital Economy

基于2011—2021年中国省级面板数据,运用固定效应模型、空间杜宾模型及门槛效应模型探讨了数字经济对农业碳排放强度的影响。研究发现,数字经济发展显著降低了农业碳排放强度。异质性分析显示,数字经济对农业的碳减排作用主要来自产业数字化的影响,且该作用在经济相对不发达地区和非粮食主产区更明显。机制分析表明,数字经济能够通过激励农业绿色技术创新促进农业碳减排,但农业能源消费结构优化未能促进农业碳减排。空间效应显示,数字经济发展对农业碳排放强度存在负向空间溢出效应。非线性关系检验表明,数字经济与农业碳排放强度之间的负相关关系具有非线性特征,且当数字经济发展水平和农业绿色技术创新水平越过门槛值时,数字经济的农业碳减排效应呈现边际递减特征。因此,应充分利用数字经济加快推进农业部门的“双碳”进程,发挥数字经济的绿色技术赋能作用,同时加强区域之间的数字协作联动与环境协同治理,从而持续释放数字经济的农业碳减排效果。

Based on the Chinese provincial panel data from 2011 to 2021,this paper explores the impact of digital economy on agricultural carbon emission intensity with the fixed effect model,the spatial Dubin model and the threshold effect model.The results show that the development of digital economy can significantly reduce the intensity of agricultural carbon emission.The heterogeneity analysis reveals that the influence of digital economy on agriculture carbon emission reduction mainly comes from the industrial digitization,and that this effect is stronger in the relatively underdeveloped areas and the non-main grain producing areas.The mechanism analysis shows that the digital economy can promote agricultural carbon emission reduction by encouraging agricultural green technology innovation,but the optimization of the structure of agricultural energy consumption has not been able to promote agricultural carbon emission reduction.The spatial effect shows that the development of digital economy has a negative spatial spillover effect on agricultural carbon emission intensity.The nonlinear relationship test shows that the negative correlation between digital economy and agricultural carbon emission intensity has nonlinear characteristics;when the development level of digital economy and the innovation level of agricultural green technology exceed the threshold value,the agricultural carbon reduction effect of the digital economy shows a marginal decreasing feature.Therefore,it is suggested to make full use of digital economy to accelerate the“double carbon”process of the agricultural sector,give full play to the green technology enabling role of digital economy,and strengthen the digital collaboration and environmental collaborative governance between the regions,so as to continuously release the agricultural emission reduction effect of digital economy.