吉林省中部粮食主产区城乡系统耦合的关联分析

采用灰色关联分析方法，构建城乡系统耦合的定量测度指标体系和模型，探讨吉林省中部粮食主产区城乡系统耦合的驱动因素及其空间格局。研究表明：①城乡系统耦合的动力主要来自于系统内部各要素间的相互作用。城市非农产业效益、城市就业与投资对乡村具有较强的作用；农村的居民生活水平、农业效益与城市子系统的关联性较强。②吉林省中部地区城乡耦合度总体上呈现东、中、西的空间分异特征。耦合度高的县域主要分布在南部山地丘陵区和西部平原区；耦合度较低的县域集中成片分布在研究区中部的哈大沿线和5个地级市辖区。（3）依据城乡系统耦合度与人均GDP的关系，将吉林省中部24个县域划分为协调型、磨合型、拮抗型和低水平协调4种空间类型，其中拮抗型县域数占全部县域总量的54％，是今后吉林省中部粮食主产区城乡协调发展需要重点关注的地区。

The Association Analysis of Urban-Rural Coupling on the Major Grain-Producing Areas of Central Jilin Province

The urban-rural integrated development is one of the most special issues in academy and applied research in China.In this paper,the indicators system of quantitative assessment and grey correlation model were established based on the theory of grey system,and the driving factors and spatial pattern of urban-rural coupling development in the major grain-producing areas of central Jilin province were discussed.The results show that: 1) the driving forces of urban-rural system coupling mainly come from the interaction of the factors of the inner system.The benefits of urban no-agricultural industries,urban employment and investment have great affect on rural subsystem.On the other hand,there is a stronger correlation between the rural living standard and agricultural efficiency and urban subsystem.2) The urban-rural coupling degrees of the study area take on a significant spatial difference,the counties with higher coupling degree mainly concentrate in the midland along the Haerbin-Dalian railway and municipal districts of the five prefecture-level cities,but the counties with lower coupling degree mainly distribute to the southern hilly areas and western sand plain areas.3) According to the corresponding relationship of urban-rural coupling degree and GDP per capita,the 24 counties in the study area can be divided into four spatial coupling types,i.e.,harmony,amelioration,conflict and low-level harmony.