地理信息系统技术在水环境质量评价中的应用

Application research associated with GIS technology in water environmental quality assessment

以先进的地理信息系统软件作平台,运用Microsoft Visual Basic 6.0编程语言,建立了水文地质环境地质空间信息系统,具有对空间数据与应用模型的管理、查询检索、空间分析等功能.以河西走廊黑河中游张掖盆地地下水质数据为实例,应用该系统开发的综合评分模型和模糊综合评判模型对地下水质量进行了评价.结果表明,该方法具有可靠性强、计算效率高、可视化效果明显等特点,可为区域水资源管理与生态地质环境评价提供一种新的途径.

Hydro-geology and environment geology space information system is established on the platform of advanced Geographic Information System with Visual Basic 6.0 program language. It has many functions in the management of space data and application model, index-inquire, and also spatial analysis. For example, the quality of the middle reaches of Heihe river in Zhangye Basin is assessed by two models of comprehensive grade and fuzzy comprehensive evaluation. The results indicate this method has high reliability, efficiency and visualization and can be used for regional groundwater resources management and eco-geological environment assessment.