以西安市为例,根据相关资料,采用定性与定量、静态与动态分析相结合的方法,借助ArcGIS软件,通过地理集中指数的测算,对西安市生产者服务业发展水平及其空间布局特征与集聚模式进行研究。主要结论:① 生产者服务业具有一定专业化水平,集聚特征明显,产值和从业人数占第三产业的比重呈上升的趋势,但仍处于较低水平;② 生产者服务业在城市内部空间集聚度偏低,但逐渐趋于集中,且分行业集聚程度参差不齐;③ 生产者服务业整体呈现多核心的集聚模式,分行业表现出不同的集聚模式类型;④ 空间结构形成机制主要是市场导向、区位因子、政府导向。对促进产业结构升级转换,确定合理的产业发展方向和城市产业规划、布局,加快西安市经济发展及提升城市竞争力都具有借鉴意义。

In the modern world, fast-growing producer service industry is gradually replacing manufacturing industry as a core force and innovation sources of economic growth in the metropolitan area and main force of urban spatial structure remodeling in western countries. In the context of economic restructuring and globalization, China's cities are facing with development chance of producer service, and the status of producer service in national economy will be enhanced. Xi'an, as the regional centre of Northwest China and the important financial and economic city in the western China, is the core city of Guanzhong-Tianshui economic region and important equipment manufacturing industry base. It has a predominant regional advantage. At present, urbanization of Xi'an turns into an accelerated stage, and the city enters into a quickly gathering term. According to the judgement index system of the regional economic growth stages, Xi'an is at the key transitional stage from the take-off stage of industrialization to maturity stage of industrialization phase. Xi'an has tremendous demand for producer service industry and also has good foundation for developing producer services. The research on the present developing condition and spatial distribution features of Xi'an City's producer service industry contributes to the development of manufacturing industry and industrial structure upgrade. It can effectively affect spatial pattern of the city and reconstruction at the same time. With the development of the world economy, producer services separated from manufacturing and have become the main force to help manufacturing upgrade and industrial structure change instead of traditional consumer services. This paper, taking Xi'an as an example, according to correlation theory of industrial economics, regional economics, economic geography and urban geography, based on industry statistics of producer services in "Xi'an Statistical Yearbook"(1998-2010)and related enterprise information in "Xi'an Yellow Pages"(2002, 2008)and by using methods of qualitative and quantitative analysis, statistic analysis and dynamic analysis and the software of ArcGIS, studies the development condition based on the proportion of gross production value of producer services, number of employed persons of producer services in tertiary industry, and spatial distribution characters of producer services. The results show that spatial distribution of producer service presents relative low agglomeration degree at present, but has agglomeration trend, and producer services by sector have diverse agglomerate degrees. The overall producer services industry presents multi-core agglomerate pattern. This study has an important practical significance for upgrading of industrial structure, the determination of reasonable industrial development direction and reasonable planning of urban industrial spatial distribution, and the promotion of economic growth and urban competitiveness in Xi'an.