塔里木河流域基础数据库设计关键问题研究

根据塔里木河流域的现状和未来发展要求，基于GIS、GPS、RS等技术，采用当前非常流行的数据仓库管理技术即空间数据和属性数据一体化、多源数据无缝集成及基于C／S结构和关系数据库三层体系结构的建库思想，阐述了基础数据建库的数据获取、技术路线、数据组织、编码设计、索引建立、数据入库等关键技术问题，实现了多尺度、多类型海量空间数据和属性数据的无缝集成和统一管理。这对开展水资源优化调度、生态环境应用研究，具有非常重要的理论和实际意义。

Key Issues in Design of Basic Database for the Tarim River Watershed

The study area, the Tarim River Watershed, is the largest continental watershed in China, it includes the watersheds of its mainstream and four main tributaries, i.e., the Aksu River, Hotan River, Yarkant River and Kaidu-Kongque River, and the Tarim River flows through the northern marginal zone of the Taklimakan Desert in Xinjiang. In the watershed the ecological environment is extremely vulnerable, and the ecological environment problems resulted in by some natural factors and the economic development in the watershed have been paid a great attention to by both domestic and foreign scholars. In this paper, the geo-spatial database is developed according to the actuality and the future development requirements in the Tarim River Watershed after deriving the basic spatial data, remote sensing images and attribute data by using the technologies of GIS, GPS, RS, etc. Then, this paper also discusses some key issues about data deriving, technological methods, data organization, coding design, index development, data input, etc. based on the data warehouse management technology, i.e., the theory of the integrative spatial and attribute data, and the seamless integration of multi-source data, and C/S-based structure and the three-hierarchy RDS. The seamless integration and unified management of various multi-scale and multi-type spatial and attribute data are achieved. These have the very import theoretical and practical significances for carrying out the optimized redistribution of water resources and applied study of ecological environment.