Study On Cultivated Land Use Transition And Regulation Under Rural Rapid Development

The land is the main carrier of human social economic activities. Some problems in the regional development process can be reflected in the land use.As the regional development subsystem, rural development is relating to the change of land use.The study of the relationship between rural development and cultivated land use is of great theoretical and practical significance to study the sustainable development and farmland protection and to promote the intensive and efficient use of cultivated land resources.The main contents and conclusions are as follows:(1) From the space, land intensive, social and economic aspects of the definition of the concept of rural comprehensive development, which can be summarized as the extension of development and content development. The transformation of cultivated land use is divided into two types:dominant and recessive. On the basis of discussing the mutual influence mechanism of the two, the conceptual model of coupling and coordination of the two is constructed.(2)Base on landscape adjacency matrix、transition probability matrix of land use types and tendency of land use transition model,take relation matrix to analyse the time series correlation on transition of land use and take adjacent relation method to analyse the spatial correlation on dominant transition of land use.On the basis of that,the influence different spatial composite states of land use types exert upon land use transition,transition strength,advantage orientation of transformation were discussed.The results show that:farmland and rural construction land are the main land use type,which account for 90.62 per cent of the total area of the county.Dominant transition of farmland use,especially rural construction land,is easily driven or restricted by adjacent land type. Dominant transition of land use is the main in Quzhou County. With the passage of time,dominant transition strength of farmland to rural construction land shows a tendency to decrease.(3)Based on the related research results, this paper constructs rural comprehensive development evaluation system from the three dimensions of spatial development,land intensive development, social and economic development. The comprehensive evaluation system for cultivated land use transition is constructed from the perspective of dominant cultivated land use transformation and recessive transformation. The Attribute Hierarchical Model is used to evaluate the rural development and cultivated land use transformation at villagelevels. According to the standard, Quzhou County is divided into three developmental types:high, medium and low, and three secondary development types. Social and economic development and spatial development are the leading factors of high development type. The high development type mainly revolves around the center of each township. While the village far away from the center of the township is relatively low,and land intensive is its main feature. The recessive transformation of cultivated land use is mainly,and it has obvious consistency with the comprehensive transformation of cultivated land use in space.Compared with the proportion of low-type and medium-type transformation in cultivated land use,dominant transformation in high transformation is higher.(4) Generally speaking, there is a high coupling degree between rural comprehensive development and cultivated land use transformation in Quzhou County.Data shows that the coupling degree was rising from 0.6676 in 2000 to 0.8020 in 2013. Accroding to the classification of coupling degree,the development type between 2000 and 2007 belongs to scarce coordination while the type changed into middle coordination development category,which shows the good condition of the overall coordinated development of rural comprehensive development and cultivated land use transformation.Before 2007,rural development appeared to be hysteretic.The overall level of rural development was low,in this stage.Dominant transformation of cultivated land use took the most part. Rural spatial development directly bring about the occupation of cultivated land,which led to the dominant transformation of cultivated land,indicating that rural development depends on factor input.After 2007,the transformation of cultivated land use is lagging behind.Comprehensive improvement of rural development due to the improving rural connotation rather than space development.In that stage,it was easy for us to find that the coupling degree between rural comprehensive development and the dominant transformation of cultivated land use was reduced.The coupling degree with implicit transformation increased continuously, which indicated that as the comprehensive development level of rural areas increased, the dominant transformation degree of cultivated land use was declining, The degree of implicit transformation was on the rise.(5)Rural development led to that the degree of cultivated land use transformation showed a trend of increasing after first slow, integrated rural development’s impact on the use of arable land in transition economics fit the law of diminishing marginal effect in of Quzhou. Around 2030, the level of cultivated land utilization per unit of rural comprehensive development reached the optimal level, and then the rural continued to develop, but the impact on the dominant transformation of cultivated land was minimal.(6) Based on rural spatial development and dominant transition of cultivated land use, this article used the CA-Markov model to predict the spatial pattern of land use in Quzhou, and to test its stability; From the perspective of the rural intension development, this paper discussed the rational regulation ways to promote the recessive transformation of cultivated land use.