The Senguer River basin, located in central Argentinian Patagonia, has its headwater in the Andean Range and ends in extra-Andean Patagonian plains. Within this region, the water bodies may be affected by their localization and the climatic and hydrological seasonality. At the lower basin, there are higher temperatures, evaporation and human impact, and lower precipitation and land cover. In addition, rainfall and runoff are higher during the winter and spring, while temperatures, wind intensity, and evaporation are higher during the summer and autumn. However, the characteristics and dynamics of the water bodies of this basin are not well known. This work aims to study the physical–chemical characteristics of the rivers and lakes of the Senguer River basin to establish their spatial and seasonal variations. During 1 year, seasonally, it was measured the concentration of total, organic and inorganic suspended sediments (TSS, OSS, ISS, respectively), total dissolved solids (TDS), pH, dissolved oxygen (DO), water temperature, chlorophyll a (Chl a), total phosphorus and Secchi disk depth. At the lower basin, water bodies present higher TSS, TDS, Chl a, and turbidity. The seasonal variability has a high impact on TSS (higher on the spring) and water temperature (higher on summer); however, the effect on the other variables is lower relative to the importance of the localization. The two extremes of the basin, Fontana Lake (Fo; located in the Andean zone) and Musters Lake (Mu; located extra-Andean plains), differed in TSS (Fo = 0.4 ± 0.3 mg L⁻¹; Mu = 4.3 ± 2.8 mg L⁻¹), TDS (Fo = 14 ± 1 mg L⁻¹; Mu = 278 ± 9 mg L⁻¹), water transparency (Fo = 11.8 ± 1.2 m; Mu = 3.1 ± 2.4 mg L⁻¹), and Chl a (Fo = 0.42 ± 0.17 μg L⁻¹; Mu = 3.93 ± 2.23 μg L⁻¹). Our results allow a better understanding of the differences between the Andean and extra-Andean water bodies in Patagonia.

中文翻译：

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阿根廷巴塔哥尼亚盆地河流和湖泊中水物理化学参数的时空动态

位于阿根廷巴塔哥尼亚中部的Senguer流域，其源头位于安第斯山脉，并止于安第斯巴塔哥尼亚平原。在该区域内，水体可能会受到其位置以及气候和水文季节性的影响。在下流域，温度较高，蒸发和人为影响较高，降水量和土地覆盖率较低。此外，冬季和春季的降雨和径流较高，而夏季和秋季的温度，风强度和蒸发量较高。但是，该流域水体的特征和动力学尚不清楚。这项工作旨在研究Senguer流域河流和湖泊的物理化学特征，以建立其空间和季节变化。在1年内，每季a（Chl a），总磷和Secchi盘深度。在较低的盆地，水体呈现更高TSS，TDS，叶绿素一个，和浊度。季节变化对TSS（春季较高）和水温（夏季较高）有很大影响；但是，相对于本地化的重要性，对其他变量的影响较小。流域的两个极端，即丰塔纳湖（Fo；位于安第斯地区）和穆斯特湖（Mu；位于安第斯大平原以外），在TSS方面有所不同（Fo = 0.4±0.3 mg L ^-1； Mu = 4.3±2.8 mg L ^-1），TDS（Fo = 14±1 mg L ^-1 ; Mu = 278±9 mg L ^-1），水透明性（Fo = 11.8±1.2 m; Mu = 3.1±2.4 mg L ^-1），和叶绿素一个（F0 = 0.42±0.17微克大号^-1 ;木= 3.93±2.23微克大号^-1）。我们的结果可以更好地了解巴塔哥尼亚的安第斯山脉与安第斯山脉以外的水体之间的差异。