The Spatial Framework and Change of Chinese Provincial Region Economic Links
利用2000和2009年287个城市数据，通过引力模型测算省际经济联系强度，发现经济联系越强、网络越复杂，区域结构越趋向多中心和一体化，且沿海三大城市群是发展重心。
By using spatial interaction gravity model,and the indexes such as urban total population,GDP and road transport mileage in 2009 and 2000,this paper comprehensive measures provincial region spatial economic links include the 287 cities around China.It calculates provincial region economic links intensity between all center cities,and according three unified standard scales of economic links intensity such as less than 10,between10-100,greater than 100,to draw provincial economic links spatial distribution framework through ArcGIS software in 2009 and 2000.Comprehensive compares each provincial area spatial economic links intensity and its change.We found that the regional special structure has kept closely relationship with its internal spatial economic links intensity and network development degree.Along with the special economic links intensity from weak to strong,links network from simple to complex,the regional spatial structure is followed by the single center to multi-core and network structure,and the ultimately development direction is towards spatial integration;we show the facts that spatial economic links can be perfect union with the main urban agglomerations,it reflects that the spatial economic links intensity and its closely degree can be looked upon as a status about city cluster evolution and development stage,at the same time,it also shows that urban agglomeration development inherence mechanism relies on the spatial economic links intensify and deepen continually.The study have shown that China's regional economic development is concentrating in three big coastal urban agglomeration regions,such as the Yangtze River Delta,Pearl River Delta and Ring Bohai Sea Gulf areas,and the uneven spatial development framework will go on continuously.