粮食安全视角下数字技术对粮食单产的影响机制

Mechanisms of Digital Technology′s Impact on Grain Yield from Perspective of Food Security

采用熵权法测度数字技术,理论分析并实证检验数字技术对粮食单产的影响机制和作用路径,以考察数字技术何以影响粮食单产。研究发现:从总体上看,数字技术可以有效提升粮食单产水平,并且这种促进作用在一系列的稳健性检验下仍然显著。从异质性来看,数字技术在粮食非主产区对粮食单产的促进作用更强。从作用机制来看,农业社会化服务水平、田间管理水平与农业机械化水平是数字技术提高粮食单产的重要渠道,农业经营规模在数字技术赋能粮食单产的过程中具有正向调节作用。从门槛效应来看,数字技术作用于粮食单产的过程中存在农村教育水平门槛。拓展分析表明,农业现代化政策有助于数字技术提高粮食单产能力。

This study employs entropy weight method to assess digital technology;it theoretically analyzes and empirically tests the impact mechanism and pathways of digital technology on grain yield,aiming to explore how digital technology affects grain yield.The research findings indicate that,in general,digital technology can effectively enhance grain yield levels,and this promoting effect remains significant under a series of robustness tests.In terms of heterogeneity,digital technology exhibits a stronger promoting effect on grain yield in non-main grain-producing areas.Regarding the mechanisms,the level of agricultural socialized services,field management,and agricultural mechanization are important channels through which digital technology enhances grain yield.Moreover,agricultural operation scale plays a positive moderating role in the process of digital technology empowering grain yield.Regarding the threshold effect,there exists a threshold of rural education level in the process of digital technology affecting grain yield.Expanded analysis suggests that policies promoting agricultural modernization contribute to the capacity of digital technology to enhance grain yield.This study aims to provide a theoretical basis and decision-making references for empowering grain yield with digital technology,as well as offer new insights for formulating relevant policies.