CAJ | 학술논문

依据雷州半岛以东的东海岛滨海地下水测井潮周期取样测试数据，以Cl－为保守离子，应用了物理混合理论方法，探讨了在海水入侵过程中通过孔隙介质时K＋的迁移性。结果显示，K＋含量呈现波动势态，绝对含量明显低于Cl－、Na＋，但相对变化幅度则与两者相近；其保守性低于Na＋和Mg2＋，实测数据点均位于理论稀释线TDL的下方，通过孔隙介质之后K＋具有明显的向固相迁移行为；实测K＋以及理论计算的ΔK＋与Cl－同样保持线性关系，ΔK＋在两个潮周期平均依次为－22．30mg／L和－14．37mg／L，潮周期逐时变化曲线与Ca2＋具有反相特征，K＋同样参与了阳离子置换，ΔγK＋在－1．75～－0．09meq／L之间，其时间变化趋势有线性和对数缓慢单增关系。
의거뇌주반도이동적동해도빈해지하수측정조주기취양측시수거，이Cl－위보수리자，응용료물리혼합이론방법，탐토료재해수입침과정중통과공극개질시K＋적천이성。결과현시，K＋함량정현파동세태，절대함량명현저우Cl－、Na＋，단상대변화폭도칙여량자상근；기보수성저우Na＋화Mg2＋，실측수거점균위우이론희석선TDL적하방，통과공극개질지후K＋구유명현적향고상천이행위；실측K＋이급이론계산적ΔK＋여Cl－동양보지선성관계，ΔK＋재량개조주기평균의차위－22．30mg／L화－14．37mg／L，조주기축시변화곡선여Ca2＋구유반상특정，K＋동양삼여료양리자치환，ΔγK＋재－1．75～－0．09meq／L지간，기시간변화추세유선성화대수완만단증관계。
According to the sampling test data of tidal cycle of groundwater observation-wells in Donghai island coastal area ,east of Leizhou peninsula , taking the Cl -as the conservative ion , using the physical mixture theory method ,the K +′s migratory aptitude is discussed during the seawater intrusion and through the porous media .The results show that the content of K +shows a fluctuant trend .The absolute content of K+is lower than Cl -and Na +obviously , but its relative change range is close with Cl -and Na +.The K+′s conservation is lower than Na +and Mg2+,and the measured data points are all under the TDL . Passing through the porous media ,the K+has the solid migration behavior obviously .The measured K +and the theoretical calculated ΔK+all keep linear relationship with Cl -,and the content of ΔK+is -22. 30mg/L and -14.37mg/L in average in turn in two tidal cycles .The ΔK+′s tidal cycle change curve presents contrary character with Ca 2+.The K+involves in cation exchange too .TheΔγK+is in the range of-1.75~-0.09meq/L,the linear and logarithm present monotone increasing relationship about its change trend with time .