Study On The Coupling And Coordinating Relationship Between Rural Population Structure,grain Production And Economic Development In Hubei Province

After entering the 21st century,under the background of rapid economic development,China's population aging trend is obvious,the pace of urbanization is accelerated,both changes cause population structural changes.As an important foundation to maintain the stability of human life and the healthy development of economy--food,under the dual background of rapid economic development and demographic structural changes,the development of grain production has been characterized by twists and turns.From 1998 to 2001,China's grain production decreased for four years,and from 2004 to 2015,China's grain production achieved "12consecutive increases".As an important factor of grain production,the change of population structure,especially the change of rural population structure and the change of economic development,is bound to affect China's grain production.Population structure,food production and economic development are the coupling relationship of interaction and influence each other.This paper takes Hubei Province as the research object,based on the analysis of the interaction mechanism and current situation of population,food production and economic conditions,entropy method and coupling coordination degree model were used to calculate and analyze the comprehensive development level of rural population structure system,grain production system and economic development system,as well as the coupling coordination degree of the three systems.The result of research shows that:(1)The overall trend of the comprehensive evaluation index of rural population structure,grain production and economic development in Hubei Province is increasing,but the comprehensive development level of the three subsystems is obviously different.The backward rural population structure and grain production have become the main limiting factors for the coordinated development of Hubei Province.(2)The coupling coordination of the three systems experienced the change of moderate misalignment,slight misalignment,near misalignment and barely coordinated.Although the overall coordination level was improved,the coordination level was not high and the coordination level rose slowly.The coordination relationship among the three systems was not ideal and there was a large room for improvement.Finally,according to the above research conclusions,the corresponding enlightenment is put forward.