基于时间距离的河南城市经济联系及其空间结构  

Spatial Structure of Urban Economic Linkage in Henan Province based on Travel Time Cost

作　　者：孟德友[1] 赵文亮[2,3] 

机构地区：[1]南京师范大学地理科学学院,江苏南京210046 [2]河南大学环境与规划学院,河南开封475001 [3]商丘师范学院环境与规划系,河南商丘476000

出　　处：《城市发展研究》2011年第6期104-110,共7页Urban Development Studies

基　　金：国家自然科学基金项目(NO.40771075)

摘　　要：采用GIS网络分析获得城市间公路交通的OD时间距离对引力模型的距离进行修正,对河南各地市间1997年和2007年的经济联系进行测算和比较,继而采用分形模型对各城市对外经济联系总量及联系强度的分形维数进行测算,探讨了地市对外经济联系的空间结构特征。研究表明,河南各城市经济联系总量等级特征明显,地市间经济联系初步形成了"十"字形主轴的网络化发展空间结构;郑州对外经济联系趋于约束型位序-规模分布,大多数城市对外经济联系空间分布向位序-规模分布态势演变;通过对河南中心城市间经济联系空间结构的研究,有利于识别各地市对外经济联系的空间导向,有利于协调地区间经济联系与合作,为空间结构的优化调整提供理论参考。By OD time cost of road network obtained by network analyst function of GIS,the distance parameter of gravity model is modified and the intensity of economic linkage between every two cities are measured and compared in 1997 and 2007 in Henan Province.And then,the hausdorff dimension of urban economic linkage quantity and intensity of each city between other cities is calculated based on the fractal theory,the fractal characteristics and the spatial structure of economic linkage are analyzed deeply.Results show that：（1） the disparity of the quantity of every city＇s economic linkage is large and the hierarchical feature is remarkable,the＂十＂shaped axes along the highway from Beijing to Hong Kong and the highway from Lianyungang to Khorgos is the most important linkage corridor in Henan and the linkage network is forming and strengthening gradually;（2） The rank-size distribution of economic linkage intensity between Zhengzhou and other cities has been trending to ideal distribution of rank-size,the linkage intensity rank-size distribution of majority cities had been changing from the distribution of first-degree to rank-size.Though the exploration of spatial structure and fractal characteristics of economic linkage among central cities,the main directions of economic linkage are identified,which is not only in favor of finding the main spatial axes for regional economic development,but also in favor of coordinating the linkage and cooperation among cities in Henan province.

关 键 词：城市经济联系 空间结构 网络分析 OD时间距离 

分 类 号：F290[经济管理—国民经济]