高标准农田建设能有效促进粮食安全与农民增收双目标实现吗?*
Can the Construction of High-standard Farmland Effectively Contribute to the Realization of the Twin Objectives of Food Security and Farmers' Income?
高标准农田建设为保障粮食安全与促进农民增收创造了有利条件。基于2005-2023年全国31省份的面板数据,运用耦合协调度、面板数据固定效应模型和两阶段最小二乘法,深入探讨了高标准农田建设影响粮食安全与农民增收双目标实现的内在机理。结果表明:研究期内,我国粮食安全与农民收入耦合协调度持续上升,不同粮食生产功能区的粮食安全与农民收入耦合协调度存在差异。高标准农田建设对粮食安全与农民收入耦合协调度具有显著正向影响,高标准农田建设每提升1个百分点,二者耦合协调度可上升0.023。机制检验结果表明,农业规模经营与农业机械化在高标准农田建设对粮食安全与农民收入耦合协调度的影响中发挥中介作用。异质性分析表明,高标准农田建设对粮食安全与农民收入耦合协调度的影响在粮食主产区、产销平衡区以及粮食安全与农民收入耦合协调度的40%、60%和80%分位数更为明显,且随着耦合协调度分位数的提升,高标准农田建设的驱动作用逐渐变得显著且效果增强。因此,相关部门应积极推进各地高标准农田建设,推进适度农业规模经营,提高农业机械化水平,最终实现粮食安全与农民增收目标。
The construction of high standard farmland has created favorable conditions for ensuring food security and promoting farmers' income growth. Based on statistical data from 31 provinces in China from 2005 to 2023, this study uses coupled coordination, panel data fixed effects model, and two-stage least squares method to deeply explore the internal mechanism of high standard farmland construction in achieving the dual goals of food security and farmers' income increasing. The results showed that during the research period, the coupling coordination degree between food security and farmers' income in China continued to increase, and there were differences in the coupling coordination degree between food security and farmers' income in different food production functional areas. The construction of high standard farmland has a significant positive impact on the coupling coordination between food security and farmers' income. For every 1% increase in high standard farmland construction, the coupling coordination between the two can increase by 0.023. The mechanism test results indicate that agricultural scale operation and agricultural mechanization play a mediating role in the coupling and coordination of food security and farmers' income in the construction of high standard farmland. Heterogeneity analysis shows that the impact of high standard farmland construction on the coupling coordination degree between food security and farmers' income is more significant in the main grain producing areas, production and sales balance areas, and the 40%, 60%, and 80% quantiles of the coupling coordination degree between food security and farmers' income. Moreover, as the quantile of the coupling coordination degree increases, the driving effect of high standard farmland construction will gradually become significant and the effect will be enhanced. Therefore, relevant departments should actively promote the construction of high standard farmland in various regions, promote moderate scale operation of agriculture, improve the level of agricultural mechanization, and ultimately achieve the dual goals of food security and increase farmers' income.
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*国家自然科学基金项目(71864017)
国家自然科学基金项目(42467067)
国家自然科学基金项目(42561045)
国家自然科学基金项目(72164014)
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