长江经济带区域经济空间结构演变

Evolution of regional structure in the Economic Belt of the Yangtze River

以长江经济带127个市域为研究单元,结合地统计分析及空间变差函数,以1988、2001及2012年为研究截面,对长江经济带经济空间结构演变进行深入探讨,结果表明:(1)区域内经济发展水平总体呈现出两极分化现象、东西差异显著,高水平区于东部地带呈片状及散点状分布,而低水平区于西部地带形成环状集聚格局;(2)冷热点格局呈现明显的梯度推移性,泛长三角地区形成片状热点集聚区,中部地带形成以武汉城市圈及长株潭城市群为核心的次热点区,而西部边缘地带冷点区集聚;(3)空间变差函数显示长江经济带区域经济发展空间格局具有较好的连续性和较强的空间自组织性,并在全方位呈现出波动变化格局,高值区域具有明显的迁移现象。且文章尝试从成因层、效应层、结果层探讨区域经济格局演变机理。

This study applied the geostatistics and variogram, and 127 cities as the research unit, analyzed the evolution of economic and spatial structure of the Economic Belt of the Yangtze River, with 1988, 2001, and 2012 as the research time section. This study results show that：（1） The level of regional economic development is showing a polarization phenomenon, significant difference was found in east and west, and the high level area distributed in patches or dots in the eastern region, and the low level area form a pattern of rings agglomeration in western region.（2） Cold-spots and hot-spots spatial pattern showed obvious gradient variation, hot-spot distributed in patches in the Pan Yangtze River Delta, the central region formed the core of the hot sub-spots in Wuhan Metropolitan Area and Changsha Zhuzhou Xiangtan Urban Agglomeration, and of the cold spots agglomeration in the edge of western region.（3） The variogram shows that the spatial pattern of regional economic development tends to be continuous and self-organized in the Economic Belt of the Yangtze River, and presents a comprehensive fluctuation pattern, high value area has obvious phenomenon of migration. The paper explores mechanism of economic structure evolution in the region from the formation, effect and the result.