Interaction between surface water and groundwater revealed by multi-tracer and statistical approaches in the Baiyangdian Lake watershed, North China Plain
Interaction between surface water and groundwater revealed by multi-tracer and statistical approaches in the Baiyangdian Lake watershed, North China Plain
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DOI：
10.3178/hrl.10.74
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发表时间：
2016
影响因子：
1.1
通讯作者：
K. Sakakibara;M. Tsujimura;Xianfang Song;Jie Zhang
中科院分区：
文献类型：
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作者：
K. Sakakibara;M. Tsujimura;Xianfang Song;Jie Zhang
通过对华北平原白洋淀流域下游的深入实地调查，研究了地表水/地下水连续流系统。对地表水、浅层地下水和深层地下水进行氧和氢同位素和化学分析，并通过应用主成分和聚类分析来处理结果。府河、汤水库和白洋淀的地表水受人为影响较大，硝酸根离子浓度较高，工业废水形成明显的硫酸钠水型，而累积蒸发导致稳定同位素成分丰富。在一些地区，浅层地下水与地表水表现出密切的化学和同位素亲和力，表明地表水对浅层地下水进行补给。深层地下水显示出比地表水和浅层地下水更低的化学和同位素信号。然而，在一些深层地下水样本中观察到硝酸根离子浓度略高，这表明浅层和深层含水层之间存在部分连通。
The surface water/groundwater-continuum flow system is investigated through an intensive field survey downstream of the Baiyangdian Lake watershed, North China Plain. Oxygen and hydrogen isotope and chemical analyses are conducted on surface water, shallow groundwater, and deep groundwater and the results are processed by applying principal component and cluster analyses. The surface water of the Fu River, Tang Reservoir, and Baiyangdian Lake is strongly affected by anthropogenic influence, resulting in high nitrate-ion concentration, a distinct sodium-sulfate water-type derived from industrial wastewater, and enriched stable isotopic compositions due to accumulated evaporation, respectively. In some areas, shallow groundwater shows close chemical and isotopic affinity to surface water, indicating that surface water recharges to shallow groundwater. Deep groundwater shows lower chemical and isotopic signals than surface water and shallow groundwater. However, a slightly high nitrate-ion concentration is observed in some samples of deep groundwater, suggesting a partial communication between shallow and deep aquifers.