NEW URBANIZATION AND GRAIN SECURITY IN MAJOR GRAIN PRODUCING AREAS BASED ON MEADIATING EFFECTS OF LAND SCALING OPERATION
New urbanization has become the key means to reform urban-rural dual structural and to transform agricultural producing ways in major grain-producing areas under the new era developing background.This paper,based on 2007 to 2021 provincial panel data of China's 13 major grain-producing areas,uses entropy to estimate China's grain security level from perspective of industrial chain,applies new urbanization contents to establish a multiple-dimensional index system that is composed of population,economy,society and space,which is employed to estimate the new urbanization level and to study its impacts on grain security,and applies land scaling operation as mediating variable to study the mechanism of new urbanization and its dimensions on grain security.New urbanization largely boosts grain security in major grain-producing areas,and land scaling operation plays a mediating effect amid new urbanization works on grain security.Dimensional heterogeneity suggests that population urbanization and spatial urbanization play an outstandingly positive role on grain security,during which land scaling operation plays a partial or total mediating effect.This paper presents suggestions on boosting new urbanization,and encouraging land scaling operation,and making appropriate strategy from population,economy,society and spatial urbanization as a long-term approach for the major grain-producing areas.
万方数据
