Methane emissions from northern lakes under climate change: a review
Abstract Northern lakes are important sources of CH 4 in the atmosphere under the background of permafrost thaw and winter warming. We synthesize studies on thermokarst lakes, including various carbon sources for CH 4 emission and the influence of thermokarst drainage on carbon emission, to show the...
Published in: | SN Applied Sciences |
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Main Authors: | , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Springer Science and Business Media LLC
2021
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Subjects: | |
Online Access: | http://dx.doi.org/10.1007/s42452-021-04869-x https://link.springer.com/content/pdf/10.1007/s42452-021-04869-x.pdf https://link.springer.com/article/10.1007/s42452-021-04869-x/fulltext.html |
Summary: | Abstract Northern lakes are important sources of CH 4 in the atmosphere under the background of permafrost thaw and winter warming. We synthesize studies on thermokarst lakes, including various carbon sources for CH 4 emission and the influence of thermokarst drainage on carbon emission, to show the evasion potential of ancient carbon that stored in the permafrost and CH 4 emission dynamics along with thermokarst lake evolution. Besides, we discuss the lake CH 4 dynamics in seasonally ice-covered lakes, especially for under-ice CH 4 accumulation and emission during spring ice melt and the possible influential factors for CH 4 emission in ice-melt period. We summarize the latest findings and point out that further research should be conducted to investigate the possibility of abundant ancient carbon emission from thermokarst lakes under climate warming and quantify the contribution of ice-melt CH 4 emission from northern lakes on a large scale. |
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