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- W2891129630 abstract "Within the southern taiga, 26 Ob tributaries of different levels were grouped according to the chemical composition of the water. The grouping was performed based on the methods of multidimensional statistical analysis. The tributaries of the first and third order formed independent clusters. The tributaries of the second order were grouped with tributaries of either high or low level, depending on the intensity of water exchange and the specific features of the headwaters – types of wetlands. The number of determinations in the corresponding cluster is 100%. Three indicators make the most significant total contribution to discrimination: the content of water soluble organic carbon, the degree of mineralization, and НСО 3 – anions. The content of organic carbon, mainly of fulvic nature, makes the most significant individual contribution to the discrimination. Decrease in water salinity, and increased concentration of carbon of humus nature, organic microimpurities, trace elements and ammonium nitrogen were statistically confirmed in the grouped tributaries of the third order in comparison with the tributaries of higher level. The limiting characteristics of water quality are total iron content and chemical oxygen demand (COD), which are determined primarily by the natural factor – high paludification of the studied area. The water of mainly small (wetland) rivers does not meet sanitary-hygienic requirements. doi 10.17072/2079-7877-2018-2-88-103" @default.
- W2891129630 created "2018-09-27" @default.
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- W2891129630 date "2018-07-10" @default.
- W2891129630 modified "2023-09-25" @default.
- W2891129630 title "Формализованная группировка притоков Оби таежной зоны по химическому составу вод" @default.
- W2891129630 hasPublicationYear "2018" @default.
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