新汴河水化学特征及其成因分析
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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)?


Hydrochemical Characteristics and Formation Analysis of the Xinbian River
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    摘要:

    以新汴河为研究对象ꎬ通过对新汴河中常规离子采用离子色谱法进行测定ꎬ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ꎬ结果表明:(1)新汴河 K+和 HCO-3 浓度变化较小ꎬCa2+ 、Mg2+ 、Na+ 、Cl- 、SO2-4 浓度在引河汇 入处发生阶跃变化ꎬ其中 Mg2+ 、Na+ 、Cl- 、SO24-浓度在引河汇入后明显减小ꎬ而 Ca2+在引河汇入后明显增大ꎮ (2)新汴河 TDS 变 化与 Mg2+ 、Na+ 、Cl- 、SO24-浓度变化具有很强的相关性ꎮ (3)新汴河以引河为界ꎬ上游段和下游段离子组分存在较大差异ꎬ上游 段水化学类型为 Na+ -HCO-3 -SO24- -Cl-型ꎬ下游段水化学类型为 Na+ -Ca2+ -HCO-3型ꎬ而引河水化学类型为 Ca2+ -Na+ -HCO-3 型ꎬ 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ꎮ

    Abstract:

    Taking Xinbian River as the research objectꎬ the conventional ions in Xinbian River were determined by ion chromatographyꎬ and the hydrochemical characteristics of Xinbian River were analyzed by the Piper trigram and Gibbs dia ̄ gram. The results show that: (1)The concentration of K+ and HCO-3 changed little in the Xinbian Riverꎬ but the concen ̄ tration of Ca2+ ꎬMg2+ ꎬNa+ ꎬCl- ꎬSO2-4 see a step change at the confluence of Yin Riverꎬ among which the concentration of Mg2+ ꎬNa+ ꎬCl- ꎬSO2-4 decreased obviously after the confluence of Yin Riverꎬ while the concentration of Ca2+ increased obvi ̄ ously after the confluence of Yin River. ( 2) The change of TDS in the Xinbian River has a close correlation with the change of Mg2+ ꎬNa+ ꎬCl- ꎬSO2-4 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 -SO2-4 -Cl- and the downstream hydrochemical type is Na+ -Ca2+ -HCO-3 ꎬ while the hydrochemical type of Yin River is Ca2+ -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

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闫定国ꎬ王明明∗ꎬ刘希勇ꎬ宗存斌ꎬ胡守东.新汴河水化学特征及其成因分析[J].西昌学院学报(自然科学版),2021,35(2):68-72.

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  • 在线发布日期: 2021-07-27