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。
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.
出处
《生态学杂志》
CAS
CSCD
北大核心
2010年第1期157-164,共8页
Chinese Journal of Ecology
基金
国家自然科学基金项目(70873118和70821140353)
国家科技支撑项目(2006BAC08B06和2008BAC43B01)
国家水科技重大专项资助项目(2009ZX07106-001)
关键词
锡林河
流域
流域管理
信息系统
流域综合管理信息系统
Xilin River
watershed
watershed management
information system
watershed management information system.
作者简介
姜群鸥，女，1981年生，博士研究生。主要从事区域地理要素空间格局模拟研究。E-mail：jiangqo．ccap@igsnrr．ac．cn
通讯作者 E—mail：dengxz．ccap@igsnrr．ac．cn
