摘要
通过数理统计、Piper图和Schoeller图等方法分析了黄河中下游过渡带(吉利-孟津段)浅层地下水水化学主要组分的分布特征、水化学类型及变化趋势,利用Gibbs模型、离子比值法和因子分析法揭示了其控制因素和主要来源,并结合剖面法验证了浅层地下水水化学演化规律。结果表明:黄河中下游过渡带浅层地下水与黄河水存在密切的水力联系,地下水水化学组分主要受岩石风化作用控制(碳酸盐岩为主),并受一定程度蒸发因素和人类活动影响;阳离子交换作用和矿产开采活动导致河谷平原区地下水中碳酸盐矿物处于动态饱和状态;黄河中下游过渡带浅层地下水水化学类型相对复杂,从黄土丘陵区到黄河漫滩区变化规律为HCO_(3)-Ca·Mg型转变为HCO_(3)·SO_(4)-Ca·Mg型和HCO_(3)·Cl^(-)Ca·Mg型,再转变为HCO_(3)·SO_(4)·Cl^(-)Ca·Na·Mg型、HCO_(3)·Cl^(-)Ca·Mg·Na型和HCO_(3)·Cl·SO_(4)-Mg·Ca·Na型。
The distribution characteristics,hydrochemical types,and variation trends of major chemical components in shallow groundwater within the transition zone of the middle-lower Yellow River(Jili-Mengjin reach)were analyzed using mathematical statistics,Piper diagrams and Schoeller diagrams.The controlling factors and primary sources of these components were identified through the Gibbs model,ionic ratio analysis and factor analysis,and the hydrochemical evolutionary patterns of shallow groundwater were verified through the profile method.The results show that there is a close hydraulic connection between shallow groundwater in the transition zone of the middle-lower Yellow River and Yellow River water.The hydrochemical composition of groundwater is predominantly controlled by rock weathering(primarily carbonate rocks),and is also influenced by evaporation and human activities to a certain extent.Cation exchange processes and mineral exploitation activities lead to a dynamic saturation state of carbonate minerals in groundwater within the river valley plain.The hydrochemical types of shallow groundwater in the transition zone of the middle-lower Yellow River are relatively complex,evolving from the HCO_(3)-Ca·Mg type in the loess hilly area to the HCO_(3)·SO_(4)-Ca·Mg and HCO_(3)·Cl^(-)Ca·Mg types in the Yellow River floodplain area,and further transitioning to the HCO_(3)·SO_(4)·Cl^(-)Ca·Na·Mg,HCO_(3)·Cl^(-)Ca·Mg·Na and HCO_(3)·Cl·SO_(4)-Mg·Ca·Na types.
作者
王广华
王秀雅
何正坤
刘旭阳
田大永
邓晓颖
Wang Guanghua;Wang Xiuya;He Zhengkun;Liu Xuyang;Tian Dayong;Deng Xiaoying(Ecological Environment Geo-Service Center of Henan Geological Bureau;The Science and Technology Innovation Center of Henan Provincial Natural Resources(Collaborative Research on Mining Development and Ecological Restoration);Sichuan Development Environmental Science and Technology Research Institute Co.,Ltd.)
出处
《水利水电科技进展》
北大核心
2026年第1期39-47,共9页
Advances in Science and Technology of Water Resources
基金
河南省自然资源科研项目(2022-266-3)
河南省国土资源科技项目(2013-85)。
关键词
黄河中下游过渡带
浅层地下水
水化学特征
演化规律
transition zone of the middle-lower Yellow River
shallow groundwater
hydrochemical characteristics
evolutionary pattern
