以建立整个长江流域的生态环境信息的数据库为目的，在用户需求、数据需求、功能需求分析的基础上，进行信息库的功能设计、数据库设计和界面设计等。长江流域生态环境信息库主要功能包括：数据编辑、数据查询与检索、数据结果输出、数据库管理等。在生态环境信息库总体设计的基础上，以金沙江流域乌东德水电站为示范区，建立了生态环境信息数据库，采用面向对象的设计思想，开发了基于Visual Basic和ArcGIS Engine平台的陆生生态环境信息系统。

The purpose of this paper is to set up the eco-environmental information database of the whole Changjiang River basin. By means of the analysis of user requirement, data requirement and function requirement, the function design, database design and interface design have been carried out. The functions of the database include data editing, data query and retrieval, data exporting, database management and so on. On the basis of the general design of the information database, a demonstration area database has been built in Wudongde Hydroelectric Station. The demonstration area database uses object-oriented design idea and develops a land eco-enviromental information system based on Visual Basic and ArcGIS Engine.