基于镇域尺度的信阳经济空间格局演变及其影响因素  

A Study on Spatial Pattern Change and Its Influence Factors of Economic Differences at Town Scale in Xinyang

作　　者：丁志伟[1,2] 张改素[1,2] 康江江 刘晓阳[1,2] 王敏[1,2] 温倩倩 

机构地区：[1]河南大学环境与规划学院/黄河中下游数字地理重点实验室/区域发展与规划中心,河南开封475004 [2]中原经济区三化协调发展河南省协同创新中心,郑州450046

出　　处：《河南大学学报（自然科学版）》2016年第6期638-647,共10页Journal of Henan University:Natural Science

基　　金：国家自然科学基金项目(41601112);河南省教育厅人文社科一般资助项目(2017-ZZJH-054)

摘　　要：基于单指标和综合指标,运用熵值法、变异系数、泰尔指数、空间自相关(ESDA)、Getis-Ord Gi*统计指数、标准差椭圆等多种方法和技术对2005-2012年信阳市170个镇域单元经济差异的时空演变特征进行了研究,探讨了影响该市镇域经济发展的驱动因素.研究发现:(1)基于人均GDP指标测度经济发展水平时,2005-2012年总体各个镇域之间的经济发展水平相对差异较大,并且有不断扩大的趋势.(2)信阳市170个镇域单元经济呈现西部市区、东部固始县、潢川部分镇域经济发展水平较高,北部、中西部、南部、东南部镇域经济发展水平较为落后,镇域经济空间差异明显.(3)通过G指数分析信阳市内部空间特征时,2005-2012年镇域单元热点区域较少,冷点区域比较多,并且冷点区域有不断扩张的态势,呈现出"西扩南移"的趋势.(4)从人均GDP与乡镇经济对比的标准差椭圆系数及经济重心的变化来看,信阳市镇域经济分布呈现明显的东—西方向格局,经济重心主要位于信阳市的中部偏东的潢川县境内,并且有西移趋势.Based on the single index and integrated index, using various methods and techniques such as entropy value method, Cv coefficient, Theil index, spatial autocorrelation （ESDA）, Getis-Ord Gi＊ statistical index and standard deviation ellipse, this paper gave an in-depth analysis of spatio-temporal evolution characters of 170 units＇ economic differences at town scale in Xinyang from 2005 to 2012, then discussed the driving factors that influencing the economic differences at town scale. The results of the study are as follows： firstly, using the per capita GDP index to measure the level of economic development, it could find that, from 2005 to 2012, the relative disparity among each towns＇ economic development level is great with a growing trend. Secondly, among the 170 units＇ township economy in Xinyang City, it presents that the downtown area of Xinyang, east Gushi County and part of the Huangchuan area have a higher economic development level, while the north, middle-west, south and southeast regions have a relative low economic development level. The spatial differences of the town economy are obvious. Thirdly, using the （1 index to analyze the internal spatial features of Xinyang City, the gap between each towns＇ economic development level has an expanding tendency from 2005 to 2012. Fourthly, from the comparison of the per capita GDP and the township economic standard deviation ellipse index as well as the change of the economicgeometric center of gravity, economic distribution at town scale in Xinyang presents a clear east-west direction pattern, and the economic geometric center of gravity is mainly located in the territory of Huangchuan County and has a tendency to move toward west. The above analysis results from the natural conditions, traffic location, government macro policies, economic basis and cultural differences to investigate the influence factors of economic differences at town scale in Xinyang.

关 键 词：经济差异 格局演变 影响因素 镇域 信阳市 

分 类 号：F127[经济管理—世界经济]