中国湖泊数据库的设计

On the Design of China Lake Database

中国湖泊数据库作为科学数据库的组成部分,是在中科院南京地理与湖泊研究所会和各兄弟单位对我国湖泊湖区长期调查研究积累基础上建立的数据库,内容包括了湖泊属性数据、湖泊空间数据和湖泊遥感图像数据等多种形式。该库可以为科研机构、教学单位、政府部门和生产部门提供信息服务。讨论了湖泊数据库设计中的几个问题,包括湖泊数据库系统功能框架、运行环境、湖泊属性库与湖泊空间库的设计。

China lake database is built during the 10th five-year on the basis of long-term research on the main lakes and lake regions in China by Naniing Institute of Geography and Limnology and other universities and research institutions. The database includes lake attributes data and lake spatial data and the lake remote sensing images. It has provided information and services for governments, scientific research organizations, teaching and working departments. At first, this paper discuss the framework of the system function and operation environment, then the design of the lake attributes database is introduced. In the third section of this paper, lake spatial database formation is briefly discussed. The implementation of the web style of China lake database is introduced in the fourth section. In the end, the conclusion of this paper is drawn, one is the China lake database must be first designed according to need; another is data redundance to some extent can increase the internet database accessing speed.