基于聚类分析的长江三角洲港口群可持续发展水平评价

从港口自身发展及港口城市发展的角度出发,重新定义了港口可持续发展能力的外延和内涵,在遵循建立可持续发展指标体系原则的基础上,形成了衡量港口可持续发展能力的评价体系。一方面该体系中指标信息的可操作性和实用性较强,数据客观真实;另一方面体系中的各类指标能够描述出评价对象的真实状况,且具有横向比较多个评价对象能力的作用。在该评价体系的基础上选取了长江三角洲港口群内的13个港口,采用聚类分析的方法,评价分析了各港口的可持续发展能力。研究结果表明,在该区域内,上海港和宁波-舟山港为第一类,凭借各自的区位条件和经济发展优势,可持续发展能力相对最高;苏州港、连云港港是第二类港口,具有不同的发展优势,可持续发展能力相对较强;其余9个港口中有的虽然在港口建设上具有明显优势,但地区发展相对落后对港口的发展也起到了阻滞作用,总体而言可持续发展能力相对较弱。

EVALUATION OF THE SUSTAINABLE DEVELOPMENT LEVEL OF PORT BASED ON THE CLUSTERING METHODOLOGY

From the view of development of port and port city, we redefined the connotation extension of port's sustainable development ability. Based on the principle of a sustainable development index system, we built the evaluation system for measuring sustainable development ability of the port. On the one hand, the indices of the system have strong operability and practicability, meanwhile the data is objective; On the other hand, the system can describe the real condition of evaluation objects and compare different evaluation objects. Based on this system, we selected 13 ports in the Yangtze Delta and analyzed them with a clustering method to measure the sustainable development ability of ports. Result indicated that among the 13 ports, ports of Shanghai and Ningbo-Zhoushan are the first class port, which has strong sustainable development ability with good locational conditions and economic growth; Port of Suzhou and Lianyungang are the second class port, which has different advantages and relatively strong development; The other 9 ports may have some advantages, but the unbalanced economic development or poor construction of infrastructure largely unhindered their sustainable development ability.