因子分析法在确定大孙庄地区裂隙岩溶水化学成分形成机制中的应用

The application of factor analysis method in the forming mechanism of chemical composition of fractured karst water in Dasunzhuang Area

根据大孙庄地区2015年旱季的裂隙岩溶水水化学分析结果,确定了水化学成分指标间的相关关系,采用因子分析法探讨了区内裂隙岩溶水形成的影响因子及程度,结果表明:水化学成分变动范围较大,具有明显的空间变异性;水化学成分形成主要受三个主要因子影响控制:主因子1代表人类活动,主因子2代表水-岩作用的影响,主因子3反映土壤等自然因素,三个主要因子能够解释地下水水质形成的81.221%,将因子分析法的分析结果与水文地质作用相结合分析了水化学成分形成机制,证实利用因子分析法研究地下水水化学成分形成机制是一种可靠、有效的方法,具有简单易行、可操作性强、结果直观准确等优点。

According to the results of the hydrochemical analysis of fractured Karst water in the dry season of 2015 in the Dasunzhuang area, the correlation between the indexes of hydrochemical composition was determined, and the influence factors and degree of Karst water formation in the area were discussed by the factor analysis method. The results show that: Hydrochemical composition has a large range of changes and has obvious spatial variability;The formation of hydrochemical composition is mainly controlled by three main factors. The three main factors can explain 81.221% of the formation of groundwater water quality. The main factor 1 represents human activities, the main factor 2 represents the influence of water-rock action, and the main factor 3 reflects natural factors such as soil and plants;By combining the results of factor analysis with hydrogeological action, the formation mechanism of hydrochemical composition is analyzed. The results confirm that the use of factor analysis method to study the formation mechanism of groundwater hydrochemical composition is a reliable and effective method, which has the advantages of simple operation, strong operability, and intuitive and accurate results.