Bacterial community diversity of meltwater runoff and soil in Midre Lovénbreen glacier in Ny-Ålesund, Arctic

Lidong, Lin and Nengfei, Wang and Wenbing, Han and Botao, Zhang and Jiaye, Zang and Qinxin, Li and Yiling, Qin and Long, Wang and Fang, Zhang and Jie, Liu (2022) Bacterial community diversity of meltwater runoff and soil in Midre Lovénbreen glacier in Ny-Ålesund, Arctic. Advances in Polar Science, 33 (2). pp. 167-180.

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Abstract

Glacial meltwater runoff is a dynamic ecosystem. On the one hand, nutrient concentration changes as it flows from upstream to downstream, and on the other hand, bacterial community structure changes due to its contact with nearby soil during the flow process. We studied meltwater and soil in the Midre Lovénbreen glacier region, to explore changes in bacterial diversity as meltwater flows, and the relationship between meltwater and soil bacterial diversity. As glacial meltwater flows from upstream to downstream, the relative abundance of dominant bacterial groups changes. In addition, we found that during the flowing process, nutrient exchange and bacterial contact had occurred between the meltwater runoff and the soil. As a result, the distribution patterns of some bacteria in the meltwater are very similar to those in the soil. Finally, we combined distance-based redundancy analysis and weighted correlation network analysis to show that NO3 −-N and NO2 −-N are the most two significant factors affecting glacial meltwater and soil, respectively. Our results suggest that in such a close-knit ecosystem, the interaction of glacial meltwater with soil, as well as environmental factors, together determine bacterial community composition.

Item Type:	Article
Related URLs:
Keywords:	Arctic, glacier meltwater, bacterial diversity, high-throughput sequencing
Subjects:	Natural Environment > Cryosphere Natural Environment > Terrestrial
Organizations:	Unspecified
Date Deposited:	16 Nov 2023 13:34
URI:	http://library.arcticportal.org/id/eprint/2785

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