Abstract

The results of multiyear studies of biogenic element concentrations in the Barguzin River mouth and the Barguzin Bay are presented. The key role of the water outflow dynamics in seasonal and interannual changes in concentrations of biogenic elements and organic carbon in the river and their inflow to the bay is confirmed. The spatial distribution of biogenic element concentrations in the bay depends on seasonal hydrological and geophysical conditions and on the activity of phytoplankton development. It is shown that under low-water conditions in the bay, the concentration of mineral compounds of biogenic elements decreased and that of organic compounds increased. In terms of total phosphorus, the Barguzin Bay is mainly characterized as a mesotrophic water body.

中文翻译：

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巴尔古津河水的生物元素流入及其在巴尔古津湾（贝加尔湖）富营养化中的作用

摘要

介绍了巴尔古津河口和巴尔古津湾生物元素浓度的多年研究结果。水流出动力学在河流中生物成因和有机碳浓度的季节性和年际变化及其流入海湾的关键作用已得到证实。海湾生物元素浓度的空间分布取决于季节性水文和地球物理条件以及浮游植物的发育活动。结果表明，在海湾低水条件下，生物成因矿物化合物浓度降低，有机化合物浓度增加。就总磷而言，巴尔古津湾的主要特征是中营养水体。