Abstract Shallow lakes are distinctive aquatic ecosystems of the Pampean region. In this paper, climatic, morphometric and chemical-environmental aspects of six lacustrine bodies of the Salado River basin, Buenos Aires, are analyzed. The climatic variability of the region was estimated and linked to the behavior of each water body during the studied period (2017–2018); precipitations displayed deviations from the mean values, with periods of deficit in spring and summer, and excess in autumn. The analysis of satellite images showed a group of lakes with very low variation of the morphometric parameters because they have gates that keep the water level constant. On the contrary, those without anthropic intervention displayed a greater morphometric variability, since the water levels have been directly linked to local weather fluctuations. From a chemical-environmental perspective, changes were observed both at the regional (p = 0.015) and local (p = 0.0014) levels. Differences among sites cannot be characterized by a single variable but by a set of them. The dominant cation in the Pampean shallow lakes is the Na+ coming from the contact of groundwater with loessic sediments. Lakes showed a particular anionic dominance that not following a seasonal but a particular pattern. These are mainly linked to the characteristics of the substrate (presence of marine sediments or gypsum deposits). The great vulnerability of these environments to global and regional climatic changes, anthropic modifications and a large number of shallow lakes in the area, allow finding different scenarios (geomorphological, ecological, hydrogeological, etc.) to assess their vulnerability and predict their behavior against future climate scenarios in an economically important area for Argentine.

中文翻译：

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控制阿根廷布宜诺斯艾利斯 Pampean 地区浅湖季节性动态的因素

摘要 浅水湖泊是潘潘地区独特的水生生态系统。本文分析了布宜诺斯艾利斯萨拉多河流域六个湖体的气候、形态测量和化学环境方面。对该地区的气候变化进行了估计，并与研究期间（2017-2018 年）每个水体的行为相关联；降水量与平均值有偏差，春夏两季少，秋季多。卫星图像分析显示，一组湖泊的形态参数变化非常小，因为它们有保持水位恒定的闸门。相反，那些没有人为干预的表现出更大的形态变异性，因为水位与当地的天气波动直接相关。从化学环境的角度来看，在区域 (p = 0.015) 和本地 (p = 0.0014) 水平上都观察到了变化。站点之间的差异不能用单个变量来表征，而是用一组变量来表征。Pampean 浅湖中的主要阳离子是来自地下水与黄土沉积物接触的 Na+。湖泊显示出一种特殊的阴离子优势，它不是遵循季节性而是遵循特定模式。这些主要与基质的特性（海洋沉积物或石膏沉积物的存在）有关。这些环境极易受到全球和区域气候变化、人为改变和该地区大量浅湖的影响，因此可以找到不同的情景（地貌、生态、水文地质等）。