基于AHP法与SNMR信息融合的含水层富水性评价方法

Aquifer Water-richness Evaluation Method Based on AHP Method and SNMR Information Fusion

含水层富水性分区是开展水资源评价的前提。以内蒙古阿拉善左旗吉兰泰盆地为研究区,通过分析含水层富水性的影响因素,利用GIS软件强大的信息融合功能将水文地质参数与地面核磁共振(SNMR)成果相结合。引入层次分析法(AHP)建立评价体系,结合专家经验和权重公式得到各个因子的权重值,建立富水性评价数学模型。计算评价了该区的富水性分布规律。结果表明该方法对研究区富水性评价合理有效,是解决富水性分区这类复杂多源地学问题的一种有效途径,为合理开发利用地下水资源提供方法借鉴。

The water-richness zoning of aquifer is the premise of water resources evaluation. The Alashan Jilantai Basin in Inner Mongolia was taken as the study area, and the influence factors of water-richness were analyzed. Using the powerful information fusion function of GIS software, the hydrogeological parameters were combined with the SNMR results. The AHP was adopted to establish the evaluation system, and the weights of the various factors were obtained by combining the expert experience and the weight formula. A mathematical model of the water-richness evaluation was established. The distribution law of water-richness in this area was calculated and evaluated. The results show that the method is reasonable and effective for evaluating the water-richness in the study area. It is an effective way to solve complex multi-source geological problems such as the water-richness zoning. It provides a reference for rational exploitation and utilization of groundwater resources.