鄱阳湖生态经济区城镇化质量测度及空间差异分析

Urbanization Quality Evaluation and Spatial Differences Analysis in Poyang Lake Eco-economic Zone

从结构和功能关系两方面构建鄱阳湖生态经济区城镇化质量评价指标体系,利用熵值法和聚类分析法对2011年鄱阳湖生态经济区城镇化质量进行测度和空间格局优化。结果表明：1鄱阳湖生态经济区城镇化质量差异明显,城镇化水平分布在0.008~0.141之间,城镇化水平最高区域为南昌市区,最低区域为武宁县;2从空间分布看,6个城市建成区的城镇化质量整体水平较高,属点状分布;而剩余25个县域城镇化质量整体较低,以鄱阳湖湖滨带为核心,圈层形式向外围逐级递减;3从结构与功能关系看,在城镇化结构中社会收入分值所占比例高,而居民生活和经济产业分值比例较低;在城镇化功能中基础教育、人居环境和医疗卫生功能得分较高,而就业吸引力相对不足和基本社会保障水平相对偏低;4空间优化显示,城镇化高质量区与亚高质量区应以提高城镇化结构功能为主,城镇化中质量区与低质量区应选择同步优化城镇结构与提升城镇功能。基于结构-功能关系的城镇质量测度和优化空间布局,可为实现鄱阳湖生态经济区城镇健康发展研究提供新的视角。

The evaluation index system of urbanization has been constructed based on the structure-function relationship,and then methods of information entropy and clustering analysis were employed to assess the quality of urbanization and optimize the pattern of urban space in Poyang Lake Eco-economic Zone in 2011. The results shows that： （1） it is obvious that the level of urbanization distribution from 0. 008 to 0. 141 in Poyang Lake Eco-economic Zone, with the maximum regional urbanization in Nanchang city and the minimum in Wuning county; （2） as to spatial distribution,the six urban built-up areas with high level of urbanization show punctuate distribution,the remaining 25 counties with lower level of urbanization with the aquatic-terrestrial eco-zone of Poyang Lake as the core and decline gradually from the core to outwards in the form of circle~ （3）as to the relationship between the structure and function, it show-s that the score proportion of social income is much higher than the score of resident living and economic industry in the structure of urbanization. At the same time, it is found that the scores of the basic education, living environment and health function is highly relative, while the employment appeal is relatively inadequate and basic social security level is relatively low in the function of urbanizatiom （4） the space optimization also suggests that the areas of urbanization efficiency and sub-high efficiency should improve the urbanization structure function, while those areas of effect and efficiency of urbanization should choose the structure and function of urban development strategies. The urbanization quality measures and spatial layout optimization based on relationship between structure and function will provide a new research perspective for the health development of urbanization in the Poyang Lake Eco-economic Zone.