基于图的时空数据模型在田块信息上的应用

The Application of the Spatial-temporal Data Model Based on Graph Theory for the Field Information

农田地块是典型的农田地理要素,作为农业生产的基本单元,是实现作物生产规划、管理和效益评价的基本单元。为此,以农田地块为研究对象,在分析农田地块更新信息的时空特征基础上,将基于图的时空数据模型应用于农田地块更新地理信息系统中,很好地满足了农田地块更新地理信息系统中对时空数据管理的实际需要。

A field parcel is a representative geographical element of farmland. It is the fundamental element in agricultural production, realizing the crop production plan, management and beneficial evaluation. Field parcels are used as the object of study in this paper. The spatial-temporal characteristics of the field parcel geographical information update system （FPGIUS） are analyzed and graph-based spatial-temporal data models are applied to the field parcel geographical information update system （FPGIUS）. This new method could meet the needs of spatial- temporal data administration.