县域经济的空间分异及其机理研究

Research on the Spatial Differentiation Mechanism of County-Level Economy

县域经济是推动区域发展的重要力量。选择河南省新郑市,借助Arc GIS软件,分析了土地利用类型及其变化(1990—2014),并调研了所辖331个村庄。研究发现:空间界面理论是揭示县域经济空间分异的重要理论,但其展现形式、类型、效应呈现出较大差异;多重空间界面叠合区优于单一空间界面区,又通常优于非空间界面区,人为空间界面区多数好于自然空间界面区,开放式空间界面区优于封闭式空间界面区;研究区大致可划分为五种空间界面类型:城(镇)乡界面、基础设施界面、自然界面、资源界面、非空间界面,主要表现为城镇扩张改造、基础设施新建或改扩建、资源开发占用、搬迁改造等经济活动。空间界面的形成、发展、演变与转化是导致县域经济空间分异与重组的内在作用力。

The county- level economy is a hot topic in the field of human geography, and is also an important force to promote regional development. We investigated the whole 331 villages of Xinzheng City, Henan Province, China, made use of the software of ARCGIS, and then analyzed these types of land use and their changes in the Xinzheng City between 1990 to 2014, the paper found that： Spatial interface theory is an important theory to reveal the spatial differentiation of county-level economy, but there showed great differences in its forms, types and effects. This type of area of multiple spatial interface superposition is better than that of the single spatial interface, which is better than the area of no spatial interface. Human spatial interface area most precedes natural spatial interface. Open spatial interface area is superior to that in closed spatial interface. There are five types of spatial interface in the study area of this paper, including these areas of the urban （town）- rural interface, the infrastructure interface, the natural interface, the resource interface and no spatial interface, and their mainly economic activities include the expansion and transformation of urban, the building or expansion of infrastructure, the exploitation of resources, removal and reconstruction and other economic activities. The formation, development, evolution and transformation of the spatial interface are internal forces of the spatial differentiation and reorganization of the county-level economy.