在分析时态数据库的研究与应用现状基础上,针对森林资源数据特点,在对象--关系Ora-cle数据库上,扩展基本数据类型和函数集,实现森林资源时空数据的有效储存,对森林资源数据的现状及变化等基本信息进行空间拓扑、时态拓扑和时空拓扑操作,提供完善的时序分析功能,高效地回答与时间相关的各类问题,准确地描述森林资源信息,完整地反映森林资源演变过程,为森林资源数据管理提供服务,对森林资源数据库的建设提供新的思路和方法.%Based on the analysis of the research and application of temporal database, in connection with features of forest resource data, on the object oriented and relational Oracle database, basic data types and functions set were extend to achieve the effective storage of spatial-temporal data of forest resources. Space topology, temporal topology and spatial-temporal topological operations were conducted on the basic in formation such as current statns and changes forest resource data to provide perfect temporal analysis capabilities, to efficiently solve all kinds of time-related issues, to accurately describe the forest resource information, to completely reflect the evolution of forest resources, and to provide forest resource data management services and new ideas and methods for the construction of forest resources database.
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