省级国土资源数据物理存储策略研究——以陕西省国土资源数据为例

Study on Physical Storage Strategy of Land and Resources Data of Province:A Case Study of Shaanxi Province

基于对省内多级行政单元国土资源数据特征及管理需求分析,提出了多级行政单元国土资源数据应用模式及数据布局策略,并以陕西省为例,对省级土地利用数据库的地类图斑要素层,按照县级多实例、全省单实例(不进行布局控制)和全省单实例(按县进行数据库分区布局)3种布局策略下的数据访问性能,进行了测试和对比分析,得出对我国国土资源数据管理部门具有参考价值的结论。

The effective physical storage is the base for information system development of the land and resource data. Firstly, the characteristic and requirement of the land and resources data management of a province is analyzed in this paper. Then the application model and physical storage strategy is studied in detail Taking the land and resources data of Shaanxi Province as an example,the data analysis performance is tested and analyzed under three different physical storage strategies, which includes the multi-instance for a county, single instance for a province（no layout control） and single instance for a province（with layout control）. In the end, the conclusion is achieved which has valuable reference for other provinces of China.