矿区土地复垦信息系统中时态数据组织方法

基于GIS建立矿区土地复垦信息系统，对矿区土地资源管理和土地复垦规划决策具有重要意义。沉陷地土地资源信息随着煤炭的开采而不断变化。所以，矿区土地复垦空间数据库是一个时态数据库。分析了采煤沉陷地土地资源动态变化的特点，在前人研究的基础上，综合了基于事件和基于特征时空数据模型的特点，建立了一个基于事件和特征的时空数据模型，并进一步给出其相应的数据组织方法。在此基础上，探讨了基于该模型的时空信息查询与分析方法。该模型可以较好地保持特征实体的完整性，数据冗余较少，适合于在现有的GIS软件中组织时空数据。

Research on organization method for spatio -temporal data of land reclamation system in mining area

It is of great significance to land resource management in mining area and the decision making of land reclamation planning to establish land reclamation information system of mining area based on GIS. The spatial information database of land reclamation is a temporal database due to the change of land resource with the coal mining. In this paper, we analyze the characteristic of the change of land resource in subsidence area, integrate the advantage of Event-Orient spatio-temporal data model and Feature-orient spatio-temporal data model, provide an Event- and- Feature-orient spatio temporal model based on the research of predecessor, and give the data organizeing method of this model. We also study the inquiry and analystic method of temporal information. This model has the advantage of keeping the integrality of feature entity and less data redundancies, and is easy to organize the spatio-temporal data in the traditional GIS.