摘要
为探讨龙里地区岩溶地下水化学组分的影响因素,对研究区24组水样12项指标运用聚类分析、因子分析进行统计分析。结果表明,该区pH、NO-3、F-与其他元素之间没有明显的相关性,其余元素间存在不同程度的相关性。地下水化学成分受灰岩的风化-溶滤作用、农业活动、工矿活动等因子的共同影响,这3个因子可以反映地下水化学成分74.073%的特征,其中灰岩的风化-溶滤作用为主要影响因子。Ca^2+、HCO3^-、Mg^2+、TDS、总硬度主要受灰岩的风化-溶滤作用的影响;K^+、Na^+、Cl^-、NO3^-主要受农业活动的影响;SO4^2-、F^-主要受工矿活动的影响。
In order to explore the influencing factors of karst groundwater chemical composition in Longli area,12 groups of water samples in the study area were analyzed by cluster analysis and factor analysis.The results showed that there was no significant correlation between pH,NO-3,F-and other elements in the region,and there were different degrees of correlation among the other elements.The chemical composition of groundwater is affected by the weathering-solubilization,liquefaction,industrial and mining activities of limestone.These three factors can reflect the characteristics of groundwater chemical composition 74.073%.Among them,the weathering-solubilization of limestone is the primary Impact factor.Ca^2+,HCO3^-,Mg^2+,TDS and total hardness are mainly affected by the weathering-solubilization of limestone;K^+,Na^+,Cl^-and NO3^-are mainly affected by agricultural activities;SO4^2-and F-are mainly affected by industrial and mining activities.
作者
张荣
ZHANG Rong(College of Resources and Environmental Engineering,Guizhou University,Guiyang 550025,China)
出处
《水利科技与经济》
2019年第8期52-55,74,共5页
Water Conservancy Science and Technology and Economy
关键词
聚类分析
岩溶地下水
因子分析
龙里地区
cluster analysis
karst groundwater
factor analysis
Longli area
