淮海经济区产业联系空间特征分析

区域经济联系一直是经济地理学和区域研究的热点领域。通过引入感应度系数和影响力系数,构建产业联系强度测度模型,对淮海经济区产业联系方向、分异特征及模式进行了深入探讨。结果表明,淮海经济区产业联系强度以京沪线为轴向东西两侧逐渐降低,核心区产业联系密切,且苏北、鲁南、皖北、豫东四大区域板块产业联系差异显著;南北联系为淮海经济区主要产业联系方向,而东西联系则为产业联系的次要方向;从空间组织看,淮海经济区产业联系呈现明显的圈层结构,由内向外依次为核心圈层、中间圈层和外缘圈层。依据产业联系方向及空间组织模式确定区域开发重点和发展方向,有利于从更高层次推进省际边界区域统筹发展。

Industrial Spatial Association Characteristics in Huaihai Economic Zone

Regional economic connection has always been a hot topic in Economic Geography and regional research. By introducing inductance and influence indexes and constructing the measurement model of industrial association intensity, this paper provides a deep discussion about the industrial association directions, spatial different characteristics and models in Huaihai Economic Zone. The result shows that because of the negative correlation between industrial interaction and the distance among cities, distance has a big influence on the industrial interaction. The industrial association intensity represents the following characteristics: first, the industrial association intensity gradually becomes weak from the Beijing-Shanghai Railway line to its two sides. Second, the core regional cities in Huaihai Economic Zone keep close contact with each other. Third, the industrial association differs obviously in the four regional plates as North Jiangsu, South Shandong, North Anhui and East Henan. Based on the conclusion of industrial association intensitu in Huaihai Economic Zone, the main industrial association direction in it mainly shows the following characteristics: first, north-south direction is the main industrial association direction in Huaihai Economic Zone. This is related to the radiating and leading role of the Beijing-Shanghai Railway. This also explains that Beijing-Shanghai Railway is the main economic axis of Huaihai Economic Zone. At the timing sequence of spatial development, key attention should be paid on the main association intension among north-south direction to form stable spatial structural system. Besides, since East-Longhai economic belt has neither an obvious effect to its surroundings nor a strong driving role, from the industrial association aspect, it hasn’t become the main axis of Huaihai Economic Zone, the industrial association among east-west direction is not so strong, so it is the secondary industrial association in Huaihai Economic Zone. From the perspective of spatial organization, the larger amount of industrial association intensity mainly concentrate in the central part of the region, the industrial radiation and impact of marginal cities to other cities in the region is greatly decreased, the industrial association presents distinct circles structure. From inside to outside is core layer, central layer and outer edge layer. The key regional development and its direction shall be decided based on the industrial association direction and spatial organization model. This will be beneficial for the coordinating regional development in provincial borders from a higher level.