长江经济带建设的指标体系与发展类型测度

Index System and Development Types of the Construction of the Yangtze River Economic Belt

长江经济带空间分异具有多元复杂性。运用主成分分析法和耦合协调度模型,对经济密集性、交通支撑性、对外开放性、创新驱动性和发展持续性的综合评价和五个维度之间的耦合协调性的评价表明:长江经济带11省(市)区域发展悬殊,"三个梯队"、"四大类型"空间分布与上、中、下游"三大流段"基本一致,但不完全重叠,整体上呈现"东高西低",并非按上中下游依次递增。推进长江经济带协调发展,既要顺应流域的自然规律,又要根据空间分异特征实施差异化策略,特别是要加强对"第三梯队"的政策扶持。

The spatial differentiation of the Yangtze River Economic Belt is complex with multiple characteristics. Based on Principal Component Analysis and Coupling Relationship Model, the evaluation of comprehensive analysis of and coupling relationship among economic density, communication support, opening up, driving force of innovation and sustainable development has been conducted, which illustrates that： the regional disparity among 11 provinces （cities） developmentin the Yangtze River Economic Belt is tremendous, the spatial distribution of ＂Three Echelons＂ and ＂Four Classes＂ are basically consistent with ＂three regions＂ of the Yangtze River defined by the upper, middle and lower basins, however, they are not perfectly overlapped; general speaking, the evaluation of east is much higher than that of the west, however the spatial differentiation is not exactly same as that of ＂three regions＂ defined by the upper, middle and lower basins. To promote the coordinated development of the Yangtze River Economic Belt, diversified measures should be taken based on not only natural laws of river basin but also the spatial differentiation mentioned above. In particular, it is necessary to strenzthen policy support for ＂The Third Echelon＂.