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Multidisciplinary studies carried out in 2007–2008 revealed the features of concentration dynamics of biogenic and organic substances, bacterio- and phytoplankton, and chlorophyll in different reaches of the Enisei River. By the development state of bacterio- and phytoplankton, saprobity index, total primary production g O2/(m2 day), and self-purification index, the water refers to the third quality class (satisfactorily clean), β-mesosaprobic. The Enisei refers to the oligotrophic type upstream of the Angara mouth and to the mesotrophic type downstream of it. 相似文献
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The concentrations of organic matter that enters the aquatic environment in dissolved form, organic matter fractions adsorbed on suspended mineral particles, and the total concentration of suspended matter in the Yenisei water were studied using rapid optical methods. Spectral characteristics of light attenuation and absorption by river water and its filtrates were analyzed in summer. Total discharges of organic carbon and suspended matter by the river were evaluated. 相似文献
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