The Farmland Conversion With The Urban Expansion

The urban expansion is an important symbol of economic development and social progress. However, urban expansion has also given period of national food security, economic and social sustainable development challenge. Therefore, farmland conversion with the urban expansion is a complex economic and social phenomenon. Professor Qu Futian proposed a conceptual idea to study the issue. It is distinguish the The Inevitable Depletion and Excessive Depletion. This has laid a good foundation for in-depth study the farmland conversion in urban expansion and the empirical research.This paper studies the farmland conversion in urban expansion balanced allocation theory as the first part work, when the market price of agricultural land is equal to the price of urban land, the land conversion to a balanced market space. As urban land prices decline from the city center to the periphery of the existence of spatial structure, making the conversion of agricultural land market equilibrium there is space in a balanced configuration space boundary. Similarly, there is land conversion balance of social space boundaries and land conversion charge balance of the boundary of space. Second, in this paper, spatial equilibrium farmland conversion based on the existence of the boundary The Inevitable Depletion and Excessive Depletion model that provides methods for the measure. Third, estimate the spatial structure of urban land price model in Nanjing and estimate market price of agricultural land in Nanjing, the social price of agricultural land. Finally, give empirical research on the Inevitable Depletion and Excessive Depletion of Nanjing, Measure the Inevitable Depletion and Excessive Depletion in the farmland conversion. Sort out the current land conversion caused a reasonable composition. Analysis of the farmland conversion with the urban expansion over the middle peasants of the root causes of consumption, a reasonable intervention from the Government to strengthen and improve governance both the government itself, the corresponding process of efficient allocation of urban expansion Farmland Conversion effective and rational and efficient allocation of agricultural Approach to resources and policy recommendations.Through theoretical analysis and the process of urban expansion in Nanjing land conversion in the empirical analysis, draw the following conclusions:(1) The Excessive Depletion of the farmland conversion in the Nanjing urban expansion is visible presence. The Excessive Depletion of the farmland conversion is about 40.86%～50.42% of the total farmland conversion when the confidence level is 70%.(2) Government Failure is the The Excessive Depletion of the farmland conversion main reason. This part of the Excessive Depletion of the farmland conversion is about 91.80%～96.49% of the total farmland conversion when the confidence level is 70%.Therefore proposed the following policy recommendations:(1)Increase the degree land market, especially in industrial uses of land, market allocation of industrial land to explore mechanisms to reduce the Excessive Depletion of the farmland conversion.(2) Should establish and improve the level of government involvement in land market regulation measures to improve the land acquisition compensation standards, norms and procedures for land acquisition and catalog cut government can control the stock of land conversion of agricultural land.