节能环保背景下地下水污染脆弱性评价

为识别出容易污染的地下水区域，为地下水保护提供参考意见，提出节能环保背景下地下水污染脆弱性评价方法。遵循地下水污染脆弱性评价体系构建原则，选取地下水位埋深等评价指标，结合指标模糊层次权重和灰色关联权重，得到指标综合权重，采集指标数据，根据指标属性和变化范围，给出指标评分，计算权重和评分的乘积和，获得地下水脆弱性评价值，评价值越高，脆弱性越高。选取某平原区域为研究区域，评价地下水污染脆弱性，划分较低、中等、较高、极高4个评价分区，检验结果表明，评价值和氮元素浓度成正比关系，线性关系较强，评价结果合理。

Groundwater pollution vulnerability assessment method under background of energy conservation and environmental protection

In order to identify groundwater areas prone to pollution and provide reference for groundwater protection，a groundwater pollution vulnerability assessment method under the background of energy conservation and environmental protection was proposed.Following the construction principle of groundwater pollution vulnerability evaluation system，selected the evaluation indicators such as the buried depth of groundwater level，combined the fuzzy hierarchy weight and gray correlation weight of the indicators，obtained the comprehensive weight of the indicators，collected the indicator data，give the indicator score according to the indicator attribute and change range，calculated the product sum of the weight and the score，and obtained the groundwater vulnerability evaluation value.The higher the evaluation value，the higher the vulnerability.Selected a plain area as the study area to evaluate the vulnerability of groundwater pollution，and divided it into four evaluation zones:low，medium，high and extremely high.The test results showed that the evaluation value was proportional to the concentration of nitrogen，and the linear relationship was strong and the evaluation results were reasonable.