| Since the 1990 s,land use change has been a hot issue in the study of geography.The study of the driving force and change mechanism is an important research direction of land use change.The existing research on the driving mechanism of land use change mainly focuses on natural ecology,social economy,technological innovation,etc.There are relatively few researches on the driving factors of policy institutions.The China’s land market is a regulation system and mechanism for land use allocation and utilization.Urban and rural land markets play an important role in promoting the concentration of land elements,optimizing the spatial allocation of construction land,and guiding industrial development.It can be seen that the urban-rural land market is an important driving force for land use change.At present,China’s urban-rural land market is divided into two parts,and the related researches are also divided.Few scholars pay attention to the impact mechanism of urban-rural land market on land use change.However,with the new urbanization,industrialization and the integration of urban and rural areas,the integration of urban and rural land markets has been promoted.Therefore,it is urgent to integrate urban and rural land markets into a unified framework to evaluate the effect on land use change.It is necessary to explore how the process of urban-rural land market integration will affect land use change(structure,pattern,intensification,etc.)in theory.Studying the impact mechanism of urban-rural land market integration on land use change can enrich and expand the research perspective and method of land use change driving mechanism,which has important theoretical and practical significance.Therefore,this dissertation focuses on the measurement of urban-rural land market integration and its effect on land use change.On the basis of revealing the mechanism of the impact of urban-rural land market integration on land use change,the development characteristics of urban and rural land markets are sorted out,and the land use change in different development stages of urban and rural land market is analyzed.And combining the remote sensing images of different phases in the study area,land use planning map,socio-economic statistics,policy documents and survey questionnaires,this dissertation empirically tests the impact mechanism of urban and rural land market integration on land use change from different spatial scales of city,county,town,administrative village and land parcel using spatial autocorrelation model,panel regression,multiple linear regression,logistic regression and other econometric models and Arc GIS spatial analysisThe conclusions are as follows:(1)Urban and rural dual property rights have a significant impact on land prices.State-owned land prices are generally higher than collective land;urban-rural dual property rights have different effects on land prices for different uses;industrial collective land and state-owned land has smaller price gap,but commercial and residential land has larger price gap.The price difference between the different uses of collective land is small,but the difference between the different uses of state-owned land is relatively large.The study found that the price impact of urban and rural dual property rights on different uses has certain differences in different research areas,and there are certain commonalities.The price of state-owned industrial land in Wuxi is281.74 yuan higher than that of collective industrial land per square meter;the price of state-owned industrial land in Nanhai District is 773.66 yuan lower than the price of collective industrial land;the impact of land property types on industrial land prices is positively correlated but not obvious in Beiliu City.The price of state-owned commercial land in Nanhai District is 3,518.17 yuan higher than the price of collective land;the price of state-owned residential land in Beiliu City is 3,235.59 yuan higher than the price of collective residential land per square meter.There is widespread“property discrimination” between collective land and state-owned land.The stateowned land can be mortgaged and financed,but the collective land cannot be mortgaged.The difference in property rights is the root cause of collective land and state-owned land that cannot ultimately achieve the same meaning of “same land,same rights,same price”.(2)The urban and rural land supply structure varies in different research areas.The collective land in Wuxi is mainly industrial land,and state-owned land is available for different purposes.The main use of collective land in Nanhai District is industrial land and commercial land,and the supply of state-owned land is mainly residential land.The main use of collective land in Beiliu City is mainly residential land,and state-owned land is available for different purposes.Why do the collective land transfer mostly in industrial land? On the one hand,because industrial users use factories for their own use,mainly using the carrying capacity of the land,the land function is not high;on the other hand,the government supports industrial growth and encourages the development of the real economy,and collective land for industrial development can bring employment,taxation and GDP to the region.(3)There are regional differences in the impact of urban and rural land market transaction integration on land use change.The transaction integration has had a significant impact on the land use change in Beiliu City.The implementation of the collective land entry policy has intensified the non-agriculturalization of agricultural land;the integration of transactions has little effect on the changes in the supply of construction land in Wuxi urban area and Nanhai District.Significantly,mainly because these two regions have a large number of invisible collective land circulation before the introduction of the collective land transfer policy.The intensity of construction land development has been relatively large and the expansion space is relatively limited before the policy was introduced,and the implementation of the market entry policy has revitalized the stock.The study found that the size of state-owned land plots in Nanhai District is larger than that of collective land,and the scale of collective land entry into the market is larger than that of collective land.There is no significant difference in the size of the collective land entering the city and the size of the stateowned land in Beiliu City.It shows that the collective land transfer policy could promote the scale utilization of collective land.(4)There are scale effects and regional differences in the impact of land price integration on land use change.The impact of urban and rural land market on land use change also has time scale effect,and urban and rural land markets at different times have different effects on land use change.Whether land price integration promotes or inhibits land use change depends mainly on the outcome of the multi-related subject.Different social and economic,historical and cultural,and urban and rural land market development conditions in different regions lead to different game outcomes for farmers,collectives,governments,and enterprises.The level of collective state-owned land price integration in Nanhai District on the town street level has no significant impact on land use change;at the village scale,Wuxi,Nanhai District and Beiliu all show a higher degree of integration of land prices,and the trend of land use change is greater.At the block level,land price integration has no significant impact on land use change in Wuxi City and Beiliu City,while the impact of land price integration level on land use change in the Nanhai District region is negatively correlated at 1% significance level..(5)Equalization of Land ownership has a significant impact on land use efficiency.The utilization efficiency of state-owned construction land is higher than that of collective construction land.And the land use period has a negative impact on industrial land use efficiency,where the short-term leased industrial land use efficiency is higher than that of long-term leased industrial land use.Under the dual-divided land market,the utilization efficiency of state-owned land is higher than that of collective land,indicating that it is necessary to build an integrated urban-rural land market to improve the efficiency of collective land use.Studies have shown that the shortening of the age of property does not result in low land use efficiency.Therefore,industrial land supply can be carried out in a variety of ways.The lease is not limited to the legal limit of 50 years.(6)Based on the conclusions of this study,the following policy recommendations are implicated.First,to build an integration market for urban and rural land with “same price and equal responsibility”.Second,the integration of urban and rural land market should pay attention to the needs of different land stakeholders.Third,to explore differentiated urban and rural land market policies.Fourth,the construction of urbanrural integrated land market should focus on tapping the potential of stock land.Fifth,reform the land supply mode and supply industrial land in the form of flexible transfer years.The innovation of this paper is as follow: this study reveals the mechanism of the impact of urban-rural land market integration on land use change from the three dimensions of transaction integration,land price integration and equalization of land ownership.Taking typical city and county regions as cases,this paper reveals the impact and spatial differences of urban-rural land market integration on land use from three scales of county,town and block,respectively.This study could provide a decisionmaking reference for the basic role of land market in regional land resource allocation. |
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