中国城市群发展的空间协同性测度及比较

The Spatial Synergy Measurement and the Comparison of Urban Agglomeration Development in China

基于19个城市群1992~2013年的DMSP/OLS城市夜间灯光数据,从同步性、差异性、空间集聚性、空间溢出性四个维度刻画城市群发展的空间协同性,以期为城市群协同发展提供准确的定量测量。研究发现:城市群间同步性指数整体差别不大,各城市群内城市间均存在密切的经济联系;各城市群差异性指数存在较大差别,其中,天山北坡城市群差异性指数最高,山东半岛城市群差异性指数最低;只有长三角、海峡西岸、辽中南、长中游、呼包鄂榆5个城市群空间集聚性指数显著为正,其他城市群不存在空间集聚现象;无论是单向溢出指数还是双向溢出指数,兰州-西宁城市群溢出效应最显著,宁夏沿黄城市群溢出效应最弱。

Based on DMSP/OLS night- time light data of 19 urban agglomerations from 1992 to 2013, the paper depicts the spatial synergy of urban agglomeration from four dimensions including synchronicity, disparity, spatial agglomeration and spatial spillover, aiming to provide accu- rate qualitative measurement of the coordinated development of urban agglomeration. Research shows that there is little difference in the synchronization index among different urban groups, and there are close economic links among the urban cities within different urban agglomerations. The difference indexes of different urban agglomerations are quite different, among which the difference index of the northern slope of Tianshan mountain urban agglomeration is the highest, while the index of Shandong peninsula urban agglomeration is the lowest. The spatial agglomeration indexes of the urban agglomerations in the Yangtze River Delta, the Western Coast of the Taiwan Straits, Middle - south of Liaoning, middle reaches of the Yangtze River and Hohhot - Baotou - Ordos - Yulin are significantly positive, and other urban agglomerations do not have spatial agglomeration. The spillover effect of Lanzhou - Xining urban agglomeration is the most significant and the urban agglomerations along the Yellow River in Ningxia is the lowest in both the one -way spillover index and the two -way spillover index.