中文摘要：

流域综合管理信息系统是集成多主题流域信息,服务流域综合管理决策的工具。本文基于GIS技术,设计了锡林河流域水质评价、流域分析和灌溉需水估算模型,研制了锡林河流域综合管理信息系统,并在系统中集成了数据管理、查询、更新、处理、模型分析和输出等多种功能,在栅格水平上实现了模型参数的输入、传递、计算及显示与分析。其中,水质评价模型以遥感影像为基本信息源,实现水质评价指标实时监测与估算,应用影响因子与水质评价指标的回归系数,分析影响水质变化的关键影响因素;流域分析模型具备确定流向、估算流域累积流量并判定流域分区等功能;农业灌溉需水计算模型实现了在已有降雨条件下锡林河流域年灌溉需水量的估算。锡林河流域综合管理信息系统为该流域现代化管理和综合治理提供了决策参考。

英文摘要：

Watershed management information system is integrated with multiple themes of watershed information, and becomes a tool of watershed comprehensive management. Based on GIS technology, this paper developed a management information system for Xilin River Basin, which had the functions of data management, query, updating, displaying, output, and model analysis operated at pixel level, and contained three models, i. e. , water quality assessment, watershed analysis, and irrigation requirement. Based on remote sensing images, the water quality assessment model realized real time monitoring and estimation of water quality evaluation indices, and, by using logistic regression to calculate the coefficients, could predict the water quality in the future. The watershed analysis model could define flow direction, estimate flow accumulation, and delineate watershed; and the irrigation requirement model could calculate the demands of irrigation under current rainfall condition. Therefore, this watershed management information system could provide valuable information for watershed modern scientific management.