CAJ | 학술논문

核心城市经济增长的极化与扩散效应直接影响城市群增长格局变动，长三角城市群核心城市增长极化效应的演化推动了该城市群由单核心向多中心发展。综合考虑经济规模权重的增长极化指数与经济增长溢出渠道的多元增长极化指数，及增长核心集中度指数等多指标的变化，本文对长三角城市群1995年以来增长格局特征及其演化的定量分析表明各指数基本呈现下降趋势，核心城市极化效应逐渐减弱，而核心城市增长的收敛性特征日益明显；长三角城市群均衡化发展的态势主要源于上海、苏州等地多核心的增长溢出效应带动了城市群内其他城市的快速发展；基于差异化的增长溢出渠道，不同城市发挥着增长核心作用。
핵심성시경제증장적겁화여확산효응직접영향성시군증장격국변동，장삼각성시군핵심성시증장겁화효응적연화추동료해성시군유단핵심향다중심발전。종합고필경제규모권중적증장겁화지수여경제증장일출거도적다원증장겁화지수，급증장핵심집중도지수등다지표적변화，본문대장삼각성시군1995년이래증장격국특정급기연화적정량분석표명각지수기본정현하강추세，핵심성시겁화효응축점감약，이핵심성시증장적수렴성특정일익명현；장삼각성시군균형화발전적태세주요원우상해、소주등지다핵심적증장일출효응대동료성시군내기타성시적쾌속발전；기우차이화적증장일출거도，불동성시발휘착증장핵심작용。
The growth polarization and diffusion effect of the core cities directly affects the growth pattern of urban ag-glomeration. During the development of the urban agglomeration in Yangtze River Delta, the growth polarization effect features of the core cities keeps evolving, from a single core mode towards multi-core mode. By measuring the growth po-larization index considering the weight of economy scale and diversity growth polarization index considering the weight of different economic growth spillover channels, and concentration index of growth polarization, the paper quantitatively an-alyzes the characteristics and evolution of growth pattern of the urban agglomeration in Yangtze River Delta since 1995. The results show that the various indexes all decline, the polarization effect of core city weakens, the characteristics of growth convergence between cities become increasingly obvious, and the equalization development trend in the urban ag-glomeration in Yangtze River Delta has appeared, which mainly comes from the spillover effect of Shanghai, Suzhou and other growth poles in urban agglomeration driving the rapid development in the urban system economy;based on the dif-ferentiation growth spillover channels, different cities can play a role of growth core.