城市"新经济"发展的空间效应及其启示——以西安市为例

以知识为基础、以计算机与信息技术为依托、技术与制度创新驱动、兼跨第二与第三产业并以服务业居重、高度外向而趋于全球化的当代"新经济"的兴起,正从诸多方面影响和改变着城市。本文以西安市为实证分析案例,依据对"新经济"内在禀赋特性的认识,从城市"产业区"格局重构、城市办公楼宇设施增长、高新技术产业区的CBD化、产业与居住功能分区的模糊化、城市经济与社会空间的极化等方面对城市"新经济"发展的空间影响效应进行了分析,并就其对于城市规划与决策的启示予以探讨。

Spatial impacts of New Economies and the implications for city planning and decision-making

The rise of New Economies,which refer to those knowledge-based,new-technology-intensive,innovation-driven,services-dominated,and globalized economic activities,has been impacting on cities in many aspects.Taking the city of Xi'an as a case,viewed from a perspective of urban geography,based on a variety of empirical data as well as some widely acknowledged understandings of the inherent features of New Economies,some representative spatial impacts(or potential impacts) of New Economies on the ongoing urban transformation of Chinese cities are analyzed in this paper.Besides,the implications of these impacts for city planning and decision-making are also discussed,and some suggestions on policies are given accordingly.The results indicate that:(1) with the development of New Economies,the spatial pattern of the city's industrial space has been transformed,in which the city's new development zones and university belt are growing up into vigorous and productive new industrial spaces,while the traditional old industrial districts declining into stagnant and problematic areas;(2) with the development of New Economies, there has been also an evident growth of office-buildings and relevant facilities;(3) because of the inherent connection between the two major branches of New Economies,i.e.the hi-tech industries and the advanced producer services,the city's Hi-tech Industrial Development Zone(HTDZ) are developing not only into a cluster of hi-tech industries but also a high concentration of various modern services and emerging as the city's new CBD;(4) the compatibility of New Economies with residential plots has led to a synchronous development and spatial integration of New Economic area with residential area;and(5) with the development of New Economies,there may also bean intensified polarization of urban socio-economic space.