摘要
地理信息系统技术为地下水脆弱性评价提供了有效的手段。现参照地下水脆弱性评价的DRASTIC指标,采用指数分析方法,进行单要素因子评价。利用GIS的空间叠加功能生成综合评价单元,再利用GIS的属性数据库对大庆市主城区地下水脆弱性进行评价。评价结果表明,大庆市主城区地下水脆弱性由西向东,由北向南呈现逐渐降低趋势。
GIS provides an ettieient tool to evaluate the groundwater vulnerability. Taking Daqing main city as the example, according to the DRASTIC index of groundwater vulnerability, the single factor was evaluated. This paper builds the comprehensive assessment by the space congruence function; then it assesses the groundwater vulnerability of Daqing main city by using the attribute database of GIS, dividing the main city into five areas according to analyzing the groundwater vulnerability.
出处
《信息技术》
2006年第3期18-20,共3页
Information Technology
关键词
地下水脆弱性
DRASTIC指标
GIS技术
groundwater vulnerability
DRASTIC index
geographical information system technology