Content of research includes: According to the special feature of spatial data management, disaster information was introduced into the spatial database.
具体的研究内容包括：首先需要依据空间数据管理的特点，向空间数据库中引入多元灾害信息。
Because of the particularity of spatial data, the traditional spatial data management methods couldn't deal with spatial data and attribute data at the same time effectively.
由于空间数据的特殊性，传统的空间数据管理方法都不能很好地处理空间数据与属性数据这两种异质数据。
The function of field data collection, spatial data management and information distribution are integrated in the platform which involves almost aspects of the process of land survey.
平台将外业数据采集、空间数据管理和信息发布等功能集成为一体，基本涵盖了土地调查监测的全过程。
With the function of spatial data management, the system can realize coupling inquiry, conditional inquiry and special subject inquiry about spatial data and their attributes of objectives.
该系统具有空间数据管理的特性，可实现对象的空间分布和属性的耦合查询、条件查询、专题查询等功能。
With the function of spatial data management, the system can realize coupling inquiry, conditional inquiry and special subject inquiry about spatial data and their attributes of objectives.
该系统具有空间数据管理的特性，可实现对象的空间分布和属性的耦合查询、条件查询、专题查询等功能。
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