Coloured dissolved organic matter in aquatic ecosystems of three representative regions of the Arctic according to the data obtained in year 2019

Research output

Abstract

In this study the laboratory analysis of water samples from three representative regions of the Arctic for content of coloured dissolved organic matter (CDOM) – the important component of natural waters, which has a direct impact on state of aquatic ecosystems, was made. Samples were collected from water objects from the Kola Peninsula, the Yamal Peninsula and the Lena River Delta. The results of the analysis made it possible to determine CDOM concentrations in water. According to the average values, the highest values were obtained for the Yamal Peninsula and lowest – for the Kola Peninsula. The predominance of allochthonous CDOM in the water objects from all three regions was revealed. Moreover, the complete absence of photodegradation processes was determined. For the lakes and rivers from the Kola Peninsula it was also possible to follow seasonal dynamic of CDOM concentration in water and to compare it with earlier obtained data concerning seasonal CDOM dynamic in the Lena River Delta. Results are actual due to the currently existing tendency of climate change which leads to intensification of thermal denudation and thermal erosion processes in the cryolithozone, which are consequently increasing income of allochthonous CDOM in water objects.
Translated title of the contributionОкрашенное растворенное органическое вещество в водных экосистемах трех репрезентативных регионов Арктики по данным за 2019 год
Original languageEnglish
Article number04006
Number of pages5
JournalE3S Web of Conferences
Volume163
Early online date17 Apr 2020
DOIs
Publication statusPublished - 17 Apr 2020
EventЧетвертые Виноградовские Чтения. «Гидрология: от познания к мировоззрению» – международная школа-семинар и научная конференция памяти выдающегося русского гидролога Юрия Борисовича Виноградова. 20-27 марта 2020 г. Санкт-Петербург. СПбГУ. - СПбГУ, Санкт-Петербург
Duration: 20 Mar 202027 Mar 2020
Conference number: 4

Scopus subject areas

  • Earth and Planetary Sciences(all)

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