摘要
污染源数据库建设在治理滇池流域中占有重要地位。首先对全国第二次污染源普查数据进行资料分析和整理。然后从数据库的概念设计、逻辑结构设计和数据库建设方面详细讨论了污染源数据库的设计。在概念设计阶段对污染源属性表的基本E-R图进行设计;逻辑设计中对污染源信息编码,属性数据库逻辑结构和空间数据库的结构以及元数据设计进行了讨论。
The construction of pollution sources database is very important for the management of Dianchi basin. In the first part, the paper analyzes and sorts the second nationwide investigation of pollution sources data of Dianchi basin, and then discus the design of database from the conceptual design, logical structure design and database construction aspect in detail. The conceptual design mainly introduces the design of basic entity -relational （E-R） diagram of pollution sources attributes table. In the logical structure design mainly includes the code of pollution sources database, the design of attribute database, spatial database and metadata.
出处
《科学技术与工程》
北大核心
2012年第8期1977-1980,共4页
Science Technology and Engineering
关键词
滇池流域
污染源
数据库设计
dianchi basin pollution source database design
