上海市外资研发机构的空间演化及区位因素

在总结上海外资研发机构发展历程的基础上,探讨其空间布局演化规律及区位因素,可为城市空间规划与研发产业布局提供借鉴。结果表明：①全域分散化趋势明显：距中心城区10~20 km范围的近郊区是外资研发机构分布的峰值圈层,随着时间推移,分布点向外围圈层扩散,中心城区集聚的倾向不显著。同时基于街道和区县统计的空间差异性逐渐缩小,空间分布趋于分散化。②局域聚焦特征显著：在不同方位形成少数不同等级的集聚区,即“张江—金桥—外高桥”东部集聚区、以漕河泾为主的中部集聚区、“紫竹—莘庄—闵行开发区—松江工业区”西南集聚区、“安亭—嘉定工业区”西北集聚区。从时序上看,这种多极引领的簇群式空间组织模式相对稳定,其中张江、漕河泾和紫竹园区的主导地位进一步强化。同时集聚区交通指向性明显,依托主干道与地铁交通网形成互动联结。③计量回归结果表明,传统区位因素(地租成本、交通通达性、资源要素)、集聚因素和制度因素对外资研发机构区位决策具有正向影响,且在不同发展阶段,对不同规模机构影响有所差异。归结起来,上海外资研发机构的空间演变机制亦是政府引导下的市场作用机制。

Spatial pattern evolution and location selection of foreign-affiliated research and development institutions in Shanghai

Using the location data of foreign-affiliated research and development (R&D) institutions in the metropolitan area of the city of shanghai, this study examined the spatial and temporal distribution and influencing factors of these institutions. Since the 1980s, foreign-affiliated R&D institutions in Shanghai have developed rapidly and three stages of development can be identified: the tentative period (1983-2000), the rapid expansion period (2001-2008), and the steady increasing period (2009-2016). Along with the increase in the number of institutions, the spatial layout showed the following characteristics: (1) A global decentralization trend was clear. The R&D institutions were concentrated in the near suburbs 10-20 km from the central city district. They eventually spread to outer suburban districts, which decreased the tendency toward the central city area. The statistical results show a gradually shrinking difference of the spatial heterogeneity between neighborhood-level units and county/district-level units. (2) Local area agglomeration characteristics were also clear. Several clusters of agglomeration are found in different districts in the suburb and outer suburb areas, namely the "Zhangjiang-Jinqiao-Waigaoqiao" eastern agglomeration area, the central agglomeration area dominated by Caohejing, the "Zizhu-Xinzhuang-Minhang Development Zone-Songjiang Industrial Zone" southwestern agglomeration area, and the "Anting-Jiading Industrial Zone" northwestern agglomeration area. During the study period, the multi-polar cluster distribution pattern was relatively stable, and the dominant positions of Zhangjiang, Caohejing, and the Zizhu Park have been further strengthened. The high concentration areas are connected by the main road and subway transportation network, which shows an obvious reliance on transportation. (3) The results of regression show that traditional location factors (rent costs, traffic accessibility, and resources), agglomeration factors, and institutional factors have strong impact on the location decision of foreign-affiliated R&D institutions, but the degree of influence also depends on their stage of development and size of the institutions. To sum up, the spatial evolution of foreign R & D institutions in Shanghai was resulted in market driving and administrative intervention mechanism.