Research output: Contribution to journal › Conference article › peer-review
Coloured dissolved organic matter in aquatic ecosystems of three representative regions of the Arctic according to the data obtained in year 2019. / Pashovkina, Anastasiia ; Fedorova, Irina .
In: E3S Web of Conferences, Vol. 163, 04006, 17.04.2020.Research output: Contribution to journal › Conference article › peer-review
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TY - JOUR
T1 - Coloured dissolved organic matter in aquatic ecosystems of three representative regions of the Arctic according to the data obtained in year 2019
AU - Pashovkina, Anastasiia
AU - Fedorova, Irina
N1 - Conference code: 4
PY - 2020/4/17
Y1 - 2020/4/17
N2 - 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.
AB - 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.
KW - Окрашенное растворенное органическое вещество (ОРОВ)
KW - Арктика
KW - Кольский полкостров
KW - полуостров Ямал
KW - дельта р. Лены
KW - водные экосистемы
UR - http://www.scopus.com/inward/record.url?scp=85085256516&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/66747152-556e-3f51-b346-48b93a3f7066/
U2 - 10.1051/e3sconf/202016304006
DO - 10.1051/e3sconf/202016304006
M3 - Conference article
VL - 163
JO - E3S Web of Conferences
JF - E3S Web of Conferences
SN - 2555-0403
M1 - 04006
Y2 - 20 March 2020 through 27 March 2020
ER -
ID: 53110042