摘要
以新汴河为研究对象,通过对新汴河中常规离子采用离子色谱法进行测定,利用Piper三线图和Gibbs图对新汴河水进行分析得到新汴河的水化学特征,结果表明:(1)新汴河K+和HCO_(3)^(-)浓度变化较小,Ca^(2+)、Mg^(2+)、Na^(+)、Cl^(-)、SO_(4)^(2-)浓度在引河汇入处发生阶跃变化,其中Mg^(2+)、Na^(+)、Cl^(-)、SO_(4)^(2-)浓度在引河汇入后明显减小,而Ca^(2+)在引河汇入后明显增大。(2)新汴河TDS变化与Mg^(2+)、Na^(+)、Cl^(-)、SO_(4)^(2-)浓度变化具有很强的相关性。(3)新汴河以引河为界,上游段和下游段离子组分存在较大差异,上游段水化学类型为Na^(+)-HCO_(3)^(-)-SO_(4)^(2-)-Cl^(-)型,下游段水化学类型为Na^(+)-Ca^(2+)-HCO_(3)^(-)型,而引河水化学类型为Ca^(2+)-Na^(+)-HCO_(3)^(-)型,新汴河上、下游段水化学类型发生变化的原因是由引河水的汇入引起的。
Taking Xinbian River as the research object,the conventional ions in Xinbian River were determined by ion chromatography,and the hydrochemical characteristics of Xinbian River were analyzed by the Piper trigram and Gibbs diagram.The results show that:(1)The concentration of K+and HCO_(3)^(-)changed little in the Xinbian River,but the concentration of Ca^(2+),Mg^(2+),Na^(+),Cl^(-),SO_(4)^(2-)see a step change at the confluence of Yin River,among which the concentration of Mg^(2+),Na^(+),Cl^(-),SO_(4)^(2-)decreased obviously after the confluence of Yin River,while the concentration of Ca^(2+)increased obviously after the confluence of Yin River.(2)The change of TDS in the Xinbian River has a close correlation with the change of Mg^(2+),Na^(+),Cl^(-),SO_(4)^(2-)concentrations.(3)The ionic composition of the upstream and downstream of Xinbian River divided by Yin River is quite different from each other.The upstream hydrochemical type is Na^(+)-HCO_(3)^(-)-SO_(4)^(2-)-Cl^(-)and the downstream hydrochemical type is Na^(+)-Ca^(2+)-HCO_(3)^(-),while the hydrochemical type of Yin River is Ca^(2+)-Na^(+)-HCO_(3)^(-).The change of hydrochemical types in the upstream and downstream of the Xinbian River is caused by the inflow of the Yin River.
作者
闫定国
王明明
刘希勇
宗存斌
胡守东
YAN Dingguo;WANG Mingming;LIU Xiyong;ZONG Cunbin;HU Shoudong(School of Resources and Civil Engineering,Suzhou University,Suzhou,Anhui 234000,China)
出处
《西昌学院学报（自然科学版）》
2021年第2期68-72,共5页
Journal of Xichang University(Natural Science Edition)
基金
国家级大学生创新创业训练计划项目(202010379013)
宿州学院大学生科研项目(KYLXYBXM21-126)
宿州学院博士科研启动基金项目(2019jb19)。
