期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2005
卷号：XXXVI-4/W6
页码：161-166
出版社：Copernicus Publications
摘要：Recent years, more and more cities have planned to build "digital city". In which the city information and its services is the core of urban plan, construction and management. of all the city informations, the spatial information plays an important role, compared with the other informations,there are some specialities in the urban spatial information, such as large scale, high resolving power,bulky,been changed quickly, hard to access and renew. The value-added and benefits of urban spatial information is lower or minus. How to use the urban spatial data efficiently is an important issue. In our opinion, The SDI at city level, namely LSDI(Local Spatial Data Infrastructures) should be put forth as soon as possible, in which something is necessary to do, such as establishing the standards to instruct the construction of LSDI,Initiating the primary research on LSDI, developing and advancing the applications and services on LSDI. The city of Xuzhou, the center city of the Huai-hai economic region, also the locomotive city of the third city zone of Jiangsu province, is a developing city compared with the cities in the south of Jiangsu, a Medium sized city according to its scale and population. In our country, most cities have the same status of Xuzhou; the paper takes Xuzhou as an example to represent the LSDI, which is realistic and useful for other cities. In the paper, the functions and importance of LSDI is discussed, the shortage for Xuzhou to construct LSDI is analysed, based on the demands and present conditions of "Digital xuzhou". Several policies are put forward to instruct the building of LSDI
