摘要
要:以关中—天水经济区为研究地域,基于重力模型对2002年和2012年区域城镇间经济联系强度进行测度,并采用社会网络分析方法构建城镇间关系矩阵,揭示区域经济联系网络格局特征和网络结构演化。研究结果表明:1关中—天水经济区城镇间的经济联系能力不断增强,网络日益稠密化和复杂化;2区域经济联系网络发育不平衡,表现为以少数大城市为核心的复杂联系网络特征,且分层现象明显;3区域经济联系网络呈现出明显的核心—边缘结构,核心区节点的影响和辐射能力不断加强,区域次级中心正在兴起;4西安、宝鸡、天水等城镇是区域经济联系网络的"桥点",发挥着重要的中介作用,大部分城镇节点的网络连通能力仍需要进一步提高。
Urban or regional economic linkage is an important research topic in economic geography. Based on different flows such as population, goods, capital and information, complicated economic linkage network has been formed. Gravity model and social network analysis are major methods to measure the intensity of urban or regional economic linkage and spatial relationship pattern. Firstly, the paper collects traffic and socio-economic statistic data of research area in 2002 and 2012. We establish attribute and spatial dataset by Arc GIS software. Secondly, the article uses gravity model and measures intensity of urban economic linkage of Guanzhong- Tianshui Economic Zone for 2002 and 2012. Thirdly, using social network analysis method, this paper chooses some different indexes like degree, network density, centralization, clustering coefficient and betweeness centrality to measure and analyze key node, urban linkage degree, network accessibility and network structure. Main research results can be concluded as follows： 1） the intensity of urban economic linkage has been enhanced constantly from 2002 to 2012 in Guanzhong-Tianshui Economic Zone. 2）The degree and clustering coefficient of regional economic linkage and urban distribution show Long-tail distribution. 3） The Guanzhong-Tianshui economic linkage network demonstrates typical core-periphery structure. 4） Some cities such as Xi＇an, Baoji, Xianyang, Tianshui, Tongchuan and Weinan show high betweeness centrality and low network limits.
出处
《人文地理》
CSSCI
北大核心
2016年第2期113-119,共7页
Human Geography
基金
国家自然科学基金项目(41201106)
中央高校基本科研业务费专项资金资助项目(2013G1271089)
陕西省自然科学基金项目(2014JQ5195)
关键词
经济联系网络
重力模型
社会网络分析
关中—天水经济区
economic linkage network
gravity model
social network analysis
Guanzhong-Tianshui Eco nomic Zone
