小型地下饮用水源安全评价指标体系与模型

Safety evaluation index system and model for small underground drinking water sources

为对小型地下饮用水源选择的适宜性进行科学评价,从水质安全、水量安全、环境安全和经济安全角度,构建水源选择评价体系.基于层析分析法(AHP)建立评价指标体系,设立26个评价指标.将专家问卷调查和资料分析相结合,确定评价指标权重,并对单准则下的权重进行合成,得到目标层至评价层的合成权重.依据法律、法规和技术标准对评价指标进行分级和分值量化,通过指标的分值和权重的计算得出评价结果.该评价体系与模型适用于北方农村小型地下饮用水源选择的定量分析和科学决策.

To scientifically evaluate the suitability of the selection of small underground drinking water sources,twenty-six indicators were selected from the perspectives of water quality safety,water quantity safety,environmental safety and economic security.Based on the analytic hierarchy process(AHP),a mathematical model of evaluation indicator system was established.The weight of these indicators was defined in the method of expert questionnaire and data analysis,and these weights under single criterion were synthesized to obtain synthesized weights from the layer to evaluation layer.These evaluation indicators were classified and quantified according to the laws,technical standards and technical standard.By the calculation of indicator scores and weights,the evaluation results can be got.The evaluation system and model were suitable for quantitative analysis and scientific decision to make in the selection of decentralized underground drinking water sources in northern rural areas.