江苏省县域经济发展空间差异及成因分析

文章以江苏省65个县域单元作为研究区域,构建县域经济发展评价指标体系,综合运用PCA法、经济重心模型及空间变差函数等方法对1978-2012年江苏县域经济发展空间差异及主要成因进行了初步地研究。结果表明:1978年以来江苏县域经济发展呈上升的态势,且发展非均衡性较显著;县域经济发展重心在120°.261′~120°.622′E、31°.910′~31°.327′N波动,大致位于无锡市至苏州市范围之内;县域经济呈现以"苏锡常"为核心、向外圈层递减的空间分布模式;县域经济发展的空间自组织性越来越强,县域经济在东北—西南方向上差异较均衡,而东南—西北方向上差异最显著;地理区位条件、经济发展基础以及区域发展政策为县域经济发展空间差异的三大主要成因。

An Analysis on Spatial Disparities and Causes of Economic Development at County-level in Jiangsu Province

The paper takes 65 economies at county-level in Jiangsu Province as the research object; constructs a comprehensive evaluation index system of economic development at county-level, by using PCA method, economic center of gravity model and spatial variogram, and makes a preliminary study on spatial disparities and causes of economic development at county-level in Jiangsu Province from the year of 1978 to 2012. The results indicate that： economic development at county-level in Jiangsu Province shows the upward trend and the development of non-equilibrium is more significant since 1978; the center field of economic development at county-level is in the area of 120°.261′～120°.622′ E and 31°.910′～31°.327′ N, generally located between Wuxi City to Suzhou City; the spatial pattern of economic development at county-level presents ＂Suzhou-Wuxi-Changzhou＂ as the core and decreases towards outside circles; the spatial self-organization of economic development at county-level is growing, the disparities in the direction of northeast-southwest are relatively smaller, while the disparities in the direction of southeast-northwest are totally different; the three main causes for the spatial disparities of economic development at county-level are geographical location conditions, economic development foundation and policies for regional economic development.