Research On The Influence Of Provincial Urbanization Differences On Farmland Circulation Based On Geographical Detectors

Urbanization is an objective trend in the development of human society and a necessary choice for improving economic strength and achieving coordinated urban and rural development.However,China's current urbanization development is unbalanced.The urban-rural income gap is still large and the problem of resources waste is serious.In particular,the allocation of limited agricultural land resources receives a hot spot of public concern.Farmland circulation can realize the optimal allocation of resources between urban and rural areas,promoting the integn of urban and rural areas,accelerating agricultural modernization.Farmland circulation even affect the economic development and social stability of the entire country.Urbanization affects the development of farmland circulation and farmland circulation will in turn affect the process of urbanization.Through exploring the spatial distribution characteristics of farmland circulation and identifying the risk factors affecting the transfer of agricultural land in the process of urbanization and their interactions,people can understand the current distribution of farmland circulation and its influencing factors.The aim of this thesis is to promote farmland circulation and achieve national food security measures.Therefore,this thesis analyzes the spatial distribution characteristics of China's farmland circulation proportion,non-peasant household farmland circulation proportion and non-grain conversion farmland circulation proportion.Through constructing an urbanization index system and analyzing the province urbanization differences,this thesis detects the main influencing factors of different farmland circulation variables and analyze the interaction between the factors.The specific methods and conclusions have the following three aspects:(1)Using the coefficient of variation method and spatial autocorrelation to analyze the spatial distribution characteristics of China's farmland circulation variables(farmland circulation proportion,non-peasant household farmland circulation proportion and non-grain conversion farmland circulation proportion)in 2016.The study found that the spatial agglomen characteristics of large-scale changes in farmland circulation variables are obvious.The spatial distribution of farmland circulation proportion and non-peasant household farmland circulation proportion is basically a pattern of east-high and low-west and the proportion of non-food-transportation is similar to that of the “U-shaped” in the east and west.The eastern part has the strongest partial difference,while the central part and the western part have little difference in internal parts.The spatial auto correlation of farmland circulation is the strongest,the non-peasant household farmland circulation proportion is second and non-grain conversion farmland circulation is the weakest.(2)Under the background of urbanization,the indicators are selected from the perspectives of urbanization scale and urban-rural differences.Natural breakpoints are used to classify indicators and correlation analysis is used to screen indicators.The study found that the correlation between urbanization and agricultural land circulation is generally higher than natural factors,especially the urbanization scale.Among the indicators of urban-rural differences,the of health technicians per capita to urban and rural areas and the of urban and rural subsistence allowances to farmland circulation variables conversion are strong.(3)Using Geographical Detectors to detect the main influencing factors and factors interaction between different agricultural land flow conversions in China.The results show that the influence of different impact indicators on farmland circulation variables is different and the natural condition factor determination is generally lower than the urbanization factor.The urbanization scale factors have the strongest explanatory power for farmland circulation variables.The indicators of the top rankings of decision-making are highly consistent with the spatial distribution of farmland circulation variables.The interaction between factors will enhance the interpretation of the differentiation of farmland circulation.The explanatory power of most index factors after interaction is above 0.6 and even more than 0.8.(4)Through the summary and analysis of the research content,it is possible to propose policy recommendations in three aspects.The first is promote moderate agricultural land circulation through differentiated farmland circulation policies,adjustment of industrial structure,reform of household registn system and improvement of social security system.The second is to promote the circulation of non-agricultural households by improving the circulation market,exploring the farmland circulation subsidy system and improving the employment training system for farmers.The third is to promote the coordination of urbanization and farmland circulation through the construction of land use increase and decrease linkage,farmland circulation use supervision system and the consolidation of cultivated land resources to inhibit non-food flow,to achieve urban and rural integn and to ensure national food security.