A Study of the Impact of Land Consolidation on the Resilience of Grain Production:A Quasi-natural Experiment Based on High-Standard Farmland Construction Policy
Accelerating the construction of high-standard farmland and improving the resilience of grain production are important issues in implementing the strategy of"sustainable farmland use"and guaranteeing national food security under the complicated circumstances.Using provincial panel data from 2005 to 2017,this paper adopts the entropy weight method to measure the resilience of grain production,and the continuous DID is used to analyze the effect of high-standard farmland construction policy on the resilience of grain production.It is found that the policy of high-standard farmland construction significantly improves the resilience of grain production, which is still valid through the multiple robustness test,and the effect of this policy is stable and long-term. Heterogeneity analysis shows that the implementation of the policy has a greater impact on the main grain-producing areas and the central and western regions than on the non-main grain-producing areas and the eastern regions.Through further mechanism analysis,it is found that the policy promotes grain production resilience by reducing the intensity of agricultural chemical inputs,increasing the proportion of grain cultivation,raising the rate of agricultural land transfer,and improving the level of agricultural socialization services.In order to further enhance the resilience of grain production,we should improve the implementation of the strategy of"sustainable farmland use",strengthen financial support,give appropriate preference to the central and western regions and to the provinces in the main grain-producing areas,accelerate the construction of high-standard farmland,and strictly implement the planning for the construction.
land consolidationresilience of grain productionhigh-standard farmland construction policydouble difference modelfood security