摘要
利用R型因子分析法对吉林西部地区第四系潜水样的水化学数据进行分析,识别出影响地下水化学组成的4个主因子。因子1以Na+,HCO3-和F-为主,揭示了土壤的溶滤作用对地下水化学成分的影响;因子2以Cl-,SO42-和Ca2+为主,反映蒸发浓缩作用对地下水化学成分的影响;因子3以K+和pH值为主,代表地下水的弱碱环境地球化学背景;因子4以NO3-为主,反映了人类活动(化肥和农药的广泛施用、大中城市的生活污水和工业污水的污染)对地下水化学成分的影响作用。
This paper utilized R-mode method to analyze hydrogeochemical data of 73 groundwater samples in Jilin province. Four main factors which affect the quality of groundwater are recognized. The first main factor mainly composed of Na^＋ , HCO2^- and F^- , it shows the influence of the leaching in soil. The second factor is made up of Cl^- , SO4^2- and Ca^2＋ , which reflects the evaporation of groundwater. The third main factor is composed of K^＋ and pH, which represents the chemical background of unconfined groundwater, for instance, water-rock reaction and weak alkali environment. The forth main factor is NO3^- and Fe^3＋ , which reflects the impacts of human activities, such as the widely use of fertilizer and pesticide, the pollution of sewage from life and industry.
出处
《地球科学与环境学报》
CAS
2006年第1期51-56,共6页
Journal of Earth Sciences and Environment
基金
吉林省社会发展重点项目(20020401)
关键词
R型因子分析
西部地区
吉林省
地下水水质
溶滤作用
蒸发浓缩作用
人类活动
R mode analysis
West area of Jinlin Province
groundwater quality
leaching of soil
evaporation ofgroundwater
impacts of human activities
