伴随着经济的快速发展,城市空间组织形式出现了网络化的新趋势.借鉴企业网络模型方法,利用上市公司机构分布数据计算长江三角洲16市1999-2013年城市间的联系值,通过考察15年间不同等级城市之间及同等级别城市间联系值的变化特征,分析城市体系结构的改变,发现上海的核心地位在下降,中小城市间的关联相对增加较快,验证了长江三角洲城市体系网络化演进的趋势并提出相应的政策建议.%With the rapid development of economy,the new space structure tendency of network has occurred.With the example of Yangtze River Delta urban group,on the basis of the network model of companies and the data of the distribution of companies on stock market,the essay calculate the relationship value of 16 cities between 1999-2013 and analyses the changes of the relationship among cities and find the weakening of core leadership of Shanghai while the fast-increasing speed of relationship value of the middle and small cities.Therefore,the essay verifies the development tendency of network relationship of the Yangtze River Delta City Group and puts forward the corresponding policy recommendations.
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