基于特征的时空数据模型研究及在土地利用变化动态监测中的应用

Development of a Feature Based Spatial-temporal Data Model for Land Use Change Dynamic Monitoring

介绍基于特征的时空数据模型的研究及在土地利用动态监测中的应用。在超图理论基础之上对基于特征的时空数据模型和数据结构的理论进行新探索。同时,以基于特征的时空数据模型为基础,探讨特征选取和时空赋值,设计基于特征的时空数据库,并在土地利用动态监测中建立原形系统,该应用实例证明本研究在理论和方法上的可行性。

A feature-based spatial-temporal data model with integrated spatial and temporal elements and whole spatial-temporal intension (FBSDTM) for dynamic monitoring of landuse is designed and developed. Firstly, fundamental theoretical framework of the feature-based spatial-temporal data model and data structure is developed based on the hypergraph theory. Secondly, a spatial-temporal database based on the developed FBSTDM is designed. Thirdly, an application of landuse monitoring which employs an integrated technology of GPS, RS and GIS is introduced. The paper is structured into four major sections. The concept model selection features and spatially temporally assigning values, data base design and case study.