中文摘要：

提出了多级异构空间数据库支持的地理信息公共服务机制,通过纵向多级、横向多库的异构空间数据库协同支持标准的网络地图服务,为我国地理空间数据的整合、共享和协同服务提供了一套完整的解决方案。

英文摘要：

Based on detailed discussion of the current status of geospatial information resources application and development of geospatial information technologies,this paper proposed a geospatial information service mechanism supported by multi-tier heterogeneous geospatial databases.By providing and calling WMS,WFS and other standard geospatial services built on distributed and cooperated databases,this mechanism provides a total solution for the state-wide geospatial data integration,sharing and services.