摘要
我国港口众多,随着改革开放的不断深入,港口经济也在不断向前发展。基于引力模型对我国东部沿海规模以上港口之间的引力状况,采用主成分分析法对影响港口城市引力的各个因素进行分析,用第一主成分得分作为评价港口竞争力的核心指标,由此得出我国沿海三大核心港口,并依据其他港口与核心港口之间的引力大小将规模以上的港口分为三大港口群:第一是以天津为核心,包括大连、营口、秦皇岛、青岛、烟台构筑的环渤海港口群;第二是以上海为核心,包括日照、连云港、宁波—舟山港的长三角港口群;第三是以广州为核心,主要由汕头、湛江、海口、三亚港组成的珠三角港口群。这些对港口群的规划和发展具有十分重要的指导意义。
In this paper,using gravity model of the port of Chinese eastern coast region attractive for analysis,including the use of principal component analysis on the effects of gravitational city,the authors analyzed the various factors to define the size of the cities through the gravity model analysis of Chinese eastern coast region and define the three core cities in the scope of the gravitational.In the definition of city size,the 9 indicators selected as a factor variable,the use of principal component analysis were classified on the analysis of urban indicators,the impact of gravitational cities to analyze the various factors to define the size of the cities through the gravity model analysis Chinese eastern coast region.Based on gravity model,Chinese port could be divided into three port group.The first was based in Tianjin as the core,including Dalian,Yingkou,Qinhuangdao,Qingdao,Yantai port groups.The second was to Shanghai as the core,the Changjiang River Delta port group.The third was the core of Guangzhou of Pearl River Delta port group.
出处
《资源开发与市场》
CAS
CSSCI
2010年第11期992-995,共4页
Resource Development & Market
关键词
主成分分析
港口集群
城市关联度
引力模型
principal component analysis
port cluster
city correlation
gravity model
