The slow and steady salinization of Sparkling Lake, Wisconsin
The slow and steady salinization of Sparkling Lake, Wisconsin
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DOI：
10.1002/lol2.10191
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发表时间：
2021-04
影响因子：
7.8
通讯作者：
H. Dugan;Linnea A. Rock
中科院分区：
文献类型：
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作者：
H. Dugan;Linnea A. Rock
渗流湖中保守溶质的浓度由降水与地下水的相对输入决定。在道路撒盐的地区，渗漏湖可能因地下水流动而面临盐碱化的高风险。在这里，我们回顾了1992年的分析，在北方威斯康星州的深渗漏湖的盐碱化。最初的分析预测，到2020年，氯化物浓度将迅速增加，然后达到8 mg L−1的稳定水平。40年来对闪光湖的监测表明，氯化物浓度并没有达到动态平衡，而是稳步上升。我们更新了原来的盒子模型的方法，增加了土壤水库的组成部分，表明缓慢稳定的氯化物的上升是陆地保留的结果。对于淡水河流和湖泊，景观上的氯化物滞留将延迟氯化物损害并延长恢复，并且在模拟未来氯化物污染风险时必须考虑。
The concentrations of conservative solutes in seepage lakes are determined by the relative inputs of precipitation vs. groundwater. In areas of road salt application, seepage lakes may be at high risk of salinization depending on groundwater flow. Here, we revisit a 1992 analysis on the salinization of Sparkling Lake, a deep seepage lake in Northern Wisconsin. The original analysis predicted a rapid increase in chloride concentrations before reaching a steady steady of 8 mg L−1 by 2020. Forty years of monitoring Sparkling Lake show that rather than reaching a dynamic equilibrium, chloride concentrations have steadily increased. We update the original box model approach by adding a soil reservoir component that shows the slow steady rise in chloride is the result of terrestrial retention. For freshwater rivers and lakes, chloride retention on the landscape will both delay chloride impairment and prolong recovery and must be considered when modeling future chloride contamination risk.