The Research On Spatial Differentiation And Optimization Of County Economy Of Jilin Province

County concentrated most of the agricultural population and arable land resources. Developing the county's economy and improving the county's comprehensive ability is the most important means to be concerned about people's livelihood, so that economic development could benefit the broad masses of the people. In the past, County economic research mostly on the county economic development model and strategy.Based on regional economics and geography, and other related economic theory as a guide. Start with the county economic characteristics of the space of Jilin Province, preliminarily establishment a county economic, social, environmental trinity comprehensive evaluation index system. Using the indicator system of Jilin Province, the three levels of county economic space characteristics could be evaluated and researched, and the time sequence of economic growth reflects the county space layout characteristics and trends. The layout that the county of Jilin province on the comprehensive economic development strategy for space on had some practical significance and value. In addition to the introduction and conclusion, the paper is divided into four parts:Part I: several important concepts and a brief review of theory that related to the paper could be discussed and at the same time the development of the county economy, as well as the type of characteristics should be introduced.Part II: briefly introduced the statistical analysis, factor analysis which are the important part of statistical methods in the space determined, and established the comprehensive evaluation index system of economic, social, environmental. So that ,the technical support of the county economy integrated development can be offered.Part III: in three dimensions, the county economic development could be evaluated by a single and comprehensive index from the point of view of space. The paper analysed the spatial variation of the characteristics and development trends in the time scale with resulting the exist problems of the county economic development.Part IV: the spatial differentiation mechanism about the county economy of Jilin province should be analysed and the principles and space optimization process were discussed. Finally the paper proposed research program about the county economy of the Jilin Province in the space optimization.