Abstract

The article presents the results of hydrochemical studies of the rivers of the Abkhazian coast of the Black Sea in April 2019. The Kodor River with its plume was the main object of the study, and additional samples were drawn from the small rivers of Kelasur, Mokva, and Galizga. Kodor River water was shown to contain nutrients at high concentrations (1.35 µM phosphates, 128.5 µM silicates, and 16 µM nitrates) at the time of testing, and this enabled the active development of the phytoplankton community in the sea. High pH values and low ammonia nitrogen content confirmed that intensive production of organic matter occurred. Analysis of total alkalinity and the content of silicon and mineral nitrogen enabled the identification of frontal zones in the Kodor River plume. Detection of chemical composition differences between the rivers studied, notwithstanding their relative proximity and the same water source (glaciers of the Caucasus Mountains), is an important result. For example, Kodor and Kelasur River waters differ from the water of the Mokva and Galizga rivers, which are located to the south of Kodor, with regard to carbonate parameters, and the difference in nitrate nitrogen content is more than twofold. The differences can be caused by different degrees of leaching of soils and rocks of the river basins.

中文翻译：

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阿布哈兹河流径流的水化学组成及其在海岸带转化的显着特征。

摘要

文章介绍了2019年4月黑海阿布哈兹海岸河流的水化学研究结果。科多尔河及其羽状物是研究的主要对象，另外的样品也从莫克瓦Kelasur的小河中抽取了样本和Galizga。在测试时，科多尔河水被证明含有高浓度的营养物（1.35 µM磷酸盐，128.5 µM硅酸盐和16 µM硝酸盐），这使海洋中的浮游植物群落得以活跃发展。高pH值和低氨氮含量证实发生了有机物的集约化生产。通过分析总碱度以及硅和矿质氮的含量，可以识别科多尔河羽流中的锋区。检测所研究河流之间的化学成分差异，尽管它们相对接近且水源相同（高加索山脉的冰川），但这是一个重要的成果。例如，就碳酸盐参数而言，科多尔河和克拉苏尔河水与位于科多尔南部的莫克瓦河和加利兹加河的水不同，硝酸盐氮含量的差额是两倍多。差异可能是由于流域土壤和岩石浸出程度不同所致。