摘要
基于研究区地下水勘察数据,利用Piper图和统计分析描述了地下水化学的基本特征;结合地质与水文地质条件分析,利用离子比例系数法、相关分析以及地下水人为污染组份分析等方法,分析了地下水化学成份的基本成因,并进一步利用因子分析方法判别了不同成因类型对地下水化学特征的影响次序。分析结果表明:研究区潜水的水化学类型较复杂,其中HCO3-Ca.Mg型居多,承压水水化学类型有3种,以HCO3-Ca.Mg型为主;溶滤作用和人类活动的影响是研究区潜水和承压水水化学形成的最主要因素,其中以溶滤作用为主导;同时蒸发浓缩、离子交换及地下水与河水的混合作用也影响着潜水的水化学形成。
Based on the test data of groundwater survey of Huanan County in Heilongjiang province,the characteristics of groundwater chemistry was analyzed by using Piper diagram and statistical methods.With the analysis on geology and hydrogeology conditions,the basic formation reasons of groundwater chemistry were proposed by ion ratio factor analysis,association analysis and man-made pollutants analysis.The influence order of the basic formation types of groundwater chemistry was given by using factor analysis method.The results showed the following laws： the types of unconfined groundwater chemistry are much more complex than confined water,but the majority is HCO-3-Ca·Mg.Leaching function and human activities were the main factors for groundwater chemistry,and evaporation function,ion-exchange function and mixture function between groundwater and surface water influenced the groundwater chemistry evolution process.
出处
《节水灌溉》
北大核心
2012年第2期41-45,共5页
Water Saving Irrigation
基金
国家自然科学青年基金(40902068
41002077)
关键词
地下水
地下水化学类型
因子分析法
groundwater
groundwater chemistry types
factor analysis
