Effects of Arctic Warming on Microbes and Methane in Different Land Types in Svalbard

• Published in: Water
• Main Authors: Fang Zhang, Han Zhang, Shaofeng Pei, Liyang Zhan, Wangwang Ye
• Format: Article in Journal/Newspaper
• Language: English
• Published: MDPI AG 2021
• Subjects: climate change; High Arctic Svalbard; different landforms; microbial community; methane production and consumption; distribution and correlation; Hydraulic engineering; TC1-978; Water supply for domestic and industrial purposes; TD201-500; Arctic; Svalbard; Svalbard Archipelago; Climate change; Global warming
• Online Access: https://doi.org/10.3390/w13223296; https://doaj.org/article/58cc8307bd4c4a6a8a76340864df768b

Climate change is having a profound impact on Arctic microbiomes and their living environments. However, we have only incomplete knowledge about the seasonal and inter-annual variations observed among these microbes and about their methane regulation mechanisms with respect to glaciers, glacial melting, snow lakes and coastal marine water. This gap in our knowledge limits our understanding of the linkages between climate and environmental change. In the Arctic, there are large reservoirs of methane which are sensitive to temperature changes. If global warming intensifies, larger quantities of methane stored in deep soil and sediments will be released into the atmosphere, causing irreversible effects on the global ecosystem. Methane production is mainly mediated by microorganisms. Although we have some knowledge of microbial community structure, we know less about the methane-correlated microbes in different land types in the Svalbard archipelago, and we do not have a comprehensive grasp of the relationship between them. That is the main reason we have written this paper, in which current knowledge of microorganisms and methane-correlated types in High Arctic Svalbard is described. The problems that need to be addressed in the future are also identified.