基于城市流视角的泛珠江三角洲经济圈空间联系分析

Analysis on the Urban Space Contact of Pan-Pearl River Delta Economic Zone Based on Urban Flow

基于城市流强度理论模型,对泛珠江三角洲经济圈117个地级市2003年和2012年的城市流强度和结构特征进行测算,并依此对经济圈的空间联系进行分析.结果表明,经济圈城市流强度值偏小的城市数量多于75个,城市间的空间联系偏弱,城市流强度存在明显的区域差异.主要原因是区域发展不均衡,综合经济实力较弱的城市数量超过65个,产业的外向服务能力不足.第二产业对经济圈城市流强度影响大于第三产业,第三产业对城市流强度的影响逐渐增强.随时间发展,经济圈城市流强度由受第二产业主导变为二、三产业共同影响.泛珠江三角洲经济圈仍处于工业化发展阶段,未来城市空间联系的格局和演化还可基于城市职能及发展要素的空间分布关系等方面进行调控.

Based on the theory model of urban flow,the intensity and structure of urban flow in 117 cities of Pan-Pearl River Delta Economic Zone in both 2003 and 2012 are calculated and analyzed,and thereby the space relation of economic circle is analyzed as well. The results showed that more than 75 cities have a smaller intensity of urban flow and a smaller space relation and there exists significant regional differences in the intensity of the urban flow owe to uneven regional development. More than 65 cities have a smaller economy power and a smaller outward service function. The intensity of urban flow still obtains a lager benefit from the secondary industry than from the tertiary industry,the impact of the tertiary industry in urban traffic intensity gradually increased. With time going on,the intensity of urban flow has been affected by both the secondary and tertiary industries from dominated by the secondary industry. The Pan-Pearl River Delta Economic Zone is still in the development stage of industrialization,future structure and evolution of urban spatial linkages could be regulated based on both urban function and spatial distribution of development elements.