摘要
以陕西省83个县域为研究单元,采用BP神经网络模型、GIS技术以及ID分异指数等对陕西省县域综合发展水平,空间分异格局做了定量化评价与测度。结果表明:县域综合评价水平在数值上呈现强者偏强,弱者偏弱,中等、中低水平相对集中分布;空间上呈南—北方向递增,东—西方向"U型"的总体分布;陕北、关中、陕南三大地域县域综合发展水平空间分异明显。研究认为加强三大地域间的分工与合作、推行差异化的县域发展战略是陕西省全面实现县域社会经济可持续发展的必由选择。
With China＇s planned economy transiting to socialist market economy system and the implementation of preferential policy for regional development, differences in regional development in China become the focus of various circles of society. County socio-economy, as the basic unit of national socio-economy, con- centrates various contradictions in regional development. So the research on it is of high theoretical and prac- tical value. This paper makes an in-depth description of the scientific concept of comprehensive assessment on the socio-economic development at county level. Based on it, the authors construct an index system of the assessment. Then, with the application of BP network model, GIS technology and ID differentiation index, the authors make a comprehensive assessment on the socio-economic development of 83 Counties in Shanxi province, which can reveal the characteristics and laws of spatial disparity about socio-economic development in Shaanxi province. The results show that the characteristics of county comprehensive development levels present a convex distribution; the regional spatial structure presents that the levels of counties comprehensive development tends to grow from south to north and shows ＂U＂ pattern from west to east in space; the overall ID differentiation index of socio-economic development at county level of Shanxi province is 0.2195 ,which appears to be an ＂contact＂ distribution. In the north of Shanxi province, counties with high level comprehen- sive development appear to be cluster, and the differences among these counties are relatively big. In Guan zhong region, counties are also characterized with a high comprehensive development level and less regional differences, and most of them are along the Weihe River. In the southern of Shanxi province, the level of the comprehensive development of most counties are low, which indicates that this region is now in a less developed situation compared with the other two in Shanxi province. Finally, the authors also put forward
出处
《人文地理》
CSSCI
北大核心
2011年第1期71-75,共5页
Human Geography
基金
国家自然科学基金(40871068)
国家社科基金重大项目(08ZD027)
陕西省科学技术研究发展计划项目(2008K08-06)
西北大学研究生自主创新基金(09YZZ37)
关键词
县域综合发展水平
空间分异
陕西省
counties comprehensive development levels
spatial disparities
Shaanxi Province
