Long-term chloride concentrations in North American and European freshwater lakes.
Long-term chloride concentrations in North American and European freshwater lakes.
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DOI：
10.1038/sdata.2017.101
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发表时间：
2017-08-08
期刊：
影响因子：
9.8
通讯作者：
Weathers KC
中科院分区：
文献类型：
--
作者：
Dugan HA;Summers JC;Skaff NK;Krivak-Tetley FE;Doubek JP;Burke SM;Bartlett SL;Arvola L;Jarjanazi H;Korponai J;Kleeberg A;Monet G;Monteith D;Moore K;Rogora M;Hanson PC;Weathers KC
湖泊流域中的人为氯化物来源，包括道路盐、化肥和废水，可以使淡水湖中的氯化物浓度升高至背景水平以上。氯化物浓度上升会影响湖泊生态和生态系统服务，例如渔业和利用湖泊作为饮用水源。为了分析淡水湖泊中氯化物浓度增加的空间范围和幅度，我们收集了欧洲和北美 529 个湖泊的数据库，这些湖泊拥有超过或等于 10 年的氯化物数据。对于每个湖泊，我们根据网格化的全球数据集计算了年平均总降水量和月平均气温的气候统计数据。我们还量化了每个湖泊周边 100 至 1,500 米缓冲区内的土地覆盖指标，包括道路密度和不透水表面。该数据库代表了全球最大的氯化湖数据集合。我们希望欧洲和北美以外地区的长期水质测量结果将来可以添加到数据库中。
Anthropogenic sources of chloride in a lake catchment, including road salt, fertilizer, and wastewater, can elevate the chloride concentration in freshwater lakes above background levels. Rising chloride concentrations can impact lake ecology and ecosystem services such as fisheries and the use of lakes as drinking water sources. To analyze the spatial extent and magnitude of increasing chloride concentrations in freshwater lakes, we amassed a database of 529 lakes in Europe and North America that had greater than or equal to ten years of chloride data. For each lake, we calculated climate statistics of mean annual total precipitation and mean monthly air temperatures from gridded global datasets. We also quantified land cover metrics, including road density and impervious surface, in buffer zones of 100 to 1,500 m surrounding the perimeter of each lake. This database represents the largest global collection of lake chloride data. We hope that long-term water quality measurements in areas outside Europe and North America can be added to the database as they become available in the future.
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