摘要:
通过对2010年在冀东平原采集的34组水化学同位素样品进行分析,探讨了地下水K+、Ca2+、Na+、Mg2+、SO42-、HCO3-与Cl-的关系,研究了氘氧同位素特征,为该区海(咸)水入侵研究提供了基础数据。研究表明:区内浅层地下水化学类型主要分为三类,沿南北方向具有一定的规律性;山前地段地下水受到的主要影响作用为溶滤作用和离子交换吸附作用,滨海地段地下水主要为混合作用和蒸发浓缩作用影响,过渡地段地下水主要为蒸发浓缩作用影响;滨海地段地下水样品受海水混入影响明显,是海(咸)水入侵的潜在危险区。
Abstract:
The hydrochemical and isotopic data of the groundwater are analyzed based on 34 samples taken from coastal area, Jidong plain in 2010. The relationships among K+, Ca2+, Na+, Mg2+, SO42-, HCO3- and Cl- are dis-cussed. Meanwhile, the relationship between D and O18 was analyzed, which provided the data base for sea (salty) water intrusion research. The results show that there are three kinds of hydrochemical types for shallow ground-water which have a regular distribution along SN direction. The characteristics of groundwater are mainly affect-ed by leaching and evaporation in piedmont zone, by mixing and evaporation in coastal zone, and by evaporation in the transitional zone. Samples are affected by seawater mixing in coastal area, which indicates a potential dan-gerous zone for saltwater intrusion.
下载: