滦河三角洲浅层地下水水化学特征分析

Analysis on Hydrochemical Characteristics of Shallow Groundwater in Luanhe River Delta

查明滦河三角洲浅层地下水化学特征,对浅层地下水进行取样测试,对测试结果采用SPSS、Aquchm、MAPGIS等软件进行水化学特征分析。结果表明滦河三角洲地区浅层地下水化学类型以HCO3-Ca型水为主,北部山前扇顶部,地下水化学演化过程以溶虑作用为主。受人类活动等外界因素影响,地下水水质随时间变化较大。地下水中的阳离子中的Ca2+、Mg2+与阴离子HCO3-含量相对稳定,Na+与Cl-相关性显著。

The groundwater samples have been collected in order to identify the chemical characteristics in Luanhe River Delta. By the tools of Aquchm,SPSS and Map Gis,the test results have been analyzed to realize the hydrochemical characteristics and correlation of groundwater. The data show that the major hydrochemical type of groundwater is HCO3-. The main process of the groundwater chemical evolution is the leaching effect in the top of alluvial fan located in the northern of mountain. Influenced by the human activities and other factors the groundwater quality is changing in time. The Ca^2 ＋,the Mg^2 ＋and the HCO3-are relatively stable in groundwater. There has obvious correlation between the Na^＋and the Cl^-.