【摘要】 地下水水质评价是环保中的重要问题。基于有向哈斯图技术(D-HDT)对地下水水质依据国家标准进行建模、解释与评估。解决了传统水质评价方法中的赋权问题,各评价指标权重值不直接参与计算过程,仅需各指标权重的大小排序便可进行评价。针对D-HDT仅能反映样品之间的优劣层级排序,无法确定水质级别的弊端,提出了依据《地下水质量标准(GB/T 14848-2017)》构造五组标准等级样品与待评样品共同参与评价的解决方案。经实践表明,基于客观标准的D-HDT评价结果客观且直观,值得进一步研究应用。更多还原

【Abstract】 Groundwater quality assessment is an important issue in environmental protection. Based on Directed-Hasse Diagram Technique(D-HDT),this study conducted the modeling,interpretation and evaluation of groundwater quality in accordance with national standards. This method solves the problem of weighting in the traditional method of water quality evaluation. In this way,the weight value of each evaluation index is not directly involved in the calculation process,and evaluation can be completed only by ranking the weight of each index. However, D-HDT can only reflect the quality ranking among samples and the quality level cannot be determined. Therefore,in this paper,together with the samples to be evaluated,five sets of standard grade samples are constructed according to the Groundwater Quality Standard(GB/T 14848-2017) to participate in the evaluation. This study shows that based on the objective criteria,assessment results under D-HDT are intuitive and objective, and further research and application of D-HDT can be foreseen.更多还原