摘要
城市群空间结构和空间关联程度是城市群发育程度、阶段与过程的空间反映.从城市群规模结构、空间结构角度出发,计算了珠江三角洲地区城市群中心城市吸引力的分维数和空间结构的关联维数,分析其分形结构特征;从空间关联的角度出发,应用威尔逊模型、空间统计学意义上的空间关联模型,对珠江三角洲9个城市的空间联系进行研究.计算了各城市的交通吸引强度、人口吸引强度,发现城市之间的联系在交通与人口规模之间存在矛盾,采用全局MoranI指数、局部G统计揭示各城市的空间关联程度、发展趋势和空间要素在各城市的集聚特征.对于珠江三角洲城市群进行空间整合来提升城市群的竞争力具有重要理论与指导意义.
City agglomeration＇ s spatial structure and spatial relation features can reflect their development degree, stages and processes. This paper calculates central cities＇ attraction fractal dimension and correlation di- mension of the spatial structure in Pearl River Delta, and analyzes its fractal structure characteristics. From the perspective of correlation dimension of their spatial structure, the application of Wilson＇ s model and spatial correlation model of spatial statistics are used to explore the spatial association of nine cities in Pearl River Delta. The strength to attract traffic, population calculated by Wilson＇ s model indicates that there is contradiction for cities＇ association in the aspects of traffic and population. This paper further explores the spatial association and development trend of all cities through the adoption of Moran I index and local statistic of total industrial output value and GDP per capita and the collective feature of the cities. At last, it explores the distribution pattern of space of all cities in Pearl River Delta, proposes the developing direction and advantages of integration. It has important theoretical and guidance to integrate the region and enhance the competitiveness of urban agglomeration.
出处
《广州大学学报（自然科学版）》
CAS
2010年第1期47-53,共7页
Journal of Guangzhou University:Natural Science Edition
基金
国家自然科学基金项目(40801034)
广州市教育局科技计划项目(08C025)资助
广州大学科研创新团队项目资助
关键词
城市群
珠江三角洲
分形结构
空间关联
city agglomeration
Pearl River Delta
fractal structure
spatial association
