Carbon Emission and Biodiversity of Arctic Soil Microbial Communities of the Novaya Zemlya and Franz Josef Land Archipelagos

Namsaraev, Z.; Bobrik, A.; Kozlova, A.; Krylova, A.; Rudenko, A.; Mitina, A.; Saburov, A.; Patrushev, M.; Karnachuk, O.; Toshchakov, S.

Авторы: Namsaraev Zorigto, Bobrik Anna, Kozlova Aleksandra, Krylova Anastasia, Rudenko Anastasia, Mitina Anastasia, Saburov Aleksandr, Patrushev Maksim, Karnachuk Olga, Toshchakov Stepan
Журнал: Microorganisms
Том: 11
Номер: 2
Год издания: 2023
Издательство: MDPI
Местоположение издательства: Basel, Switzerland
Номер статьи: 482
DOI: 10.3390/microorganisms11020482
Аннотация: Cryogenic soils are the most important terrestrial carbon reservoir on the planet. However,the relationship between soil microbial diversity and CO2 emission by cryogenic soils is poorlystudied. This is especially important in the context of rising temperatures in the high Arctic which canlead to the activation of microbial processes in soils and an increase in carbon input from cryogenicsoils into the atmosphere. Here, using high-throughput sequencing of 16S rRNA gene amplicons, weanalyzed microbial community composition and diversity metrics in relation to soil carbon dioxideemission, water-extractable organic carbon and microbial biomass carbon in the soils of the BarentsSea archipelagos, Novaya Zemlya and Franz Josef Land. It was found that the highest diversity andCO2 emission were observed on the Hooker and Heiss Islands of the Franz Josef Land archipelago,while the diversity and CO2 emission levels were lower on Novaya Zemlya. Soil moisture andtemperature were the main parameters influencing the composition of soil microbial communities onboth archipelagos. The data obtained show that CO2 emission levels and community diversity on thestudied islands are influenced mostly by a number of local factors, such as soil moisture, microclimaticconditions, different patterns of vegetation and fecal input from animals such as reindeer.
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Carbon Emission and Biodiversity of Arctic Soil Microbial Communities of the Novaya Zemlya and Franz Josef Land Archipelagosстатья

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