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区域经济差异是区域空间结构研究的重点问题,小尺度下区域经济差异分析更能深刻地揭示区域差异的内在机制,是解决地方经济发展问题的有效途径。本文以县域为基本单元,运用区域经济重心、泰尔指数以及专业化指数,分析探索2000年以来江苏省海洋经济时空差异演变。实证研究结果表明,江苏省海洋经济重心不断改变,总体上呈现向南偏移的趋势;江苏省海洋经济总体差异在波动中逐渐下降,总体差异主要来源于区内差异,其中连云港区内差异贡献率最大;自然资源禀赋、产业基础等是江苏六大海洋产业在沿海县域的集聚变动主要原因。
Regional economic disparity is a key issue in the study of regional spatial structure. Analyzing regional economic disparities at a small scale can reveal the inherent mechanism of regional disparities more profoundly and is an effective way to solve the problem of local economic development. In this paper, county as the basic unit, the use of regional economic center of gravity, Theil index and the specialization index, to explore the evolution of marine economy in Jiangsu Province since 2000, space-time evolution. The empirical results show that the marine economic center of gravity in Jiangsu Province is constantly changing, showing a general trend of shifting to the south. The overall difference in marine economy in Jiangsu Province has been gradually declining in fluctuation. The overall difference mainly comes from the intra-regional differences, with the difference in Lianyungang The largest rate of natural resource endowments, industrial base is the main reason for the concentration of six major marine industries in Jiangsu coastal counties.