Swamp Wetlands in Degraded Permafrost Areas Release Large Amounts of Methane and May Promote Wildfires through Friction Electrification
Affected by global warming, permafrost degradation releases a large amount of methane gas, and this part of flammable methane may increase the frequency of wildfires. To study the influence mechanism of methane emission on wildfires in degraded permafrost regions, we selected the northwest section o...
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Language: | English |
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MDPI AG
2022
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Online Access: | https://doi.org/10.3390/su14159193 https://doaj.org/article/50181eab1d0b485a97966a251b5148a3 |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:50181eab1d0b485a97966a251b5148a3 2023-05-15T17:55:46+02:00 Swamp Wetlands in Degraded Permafrost Areas Release Large Amounts of Methane and May Promote Wildfires through Friction Electrification Zhichao Xu Wei Shan Ying Guo Chengcheng Zhang Lisha Qiu 2022-07-01 https://doi.org/10.3390/su14159193 https://doaj.org/article/50181eab1d0b485a97966a251b5148a3 en eng MDPI AG doi:10.3390/su14159193 2071-1050 https://doaj.org/article/50181eab1d0b485a97966a251b5148a3 undefined Sustainability, Vol 14, Iss 9193, p 9193 (2022) China Heilongjiang province Xiao Xing’an Mountains permafrost methane emissions static electricity envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2022 fttriple https://doi.org/10.3390/su14159193 2023-01-22T19:28:26Z Affected by global warming, permafrost degradation releases a large amount of methane gas, and this part of flammable methane may increase the frequency of wildfires. To study the influence mechanism of methane emission on wildfires in degraded permafrost regions, we selected the northwest section of Xiaoxing’an Mountains in China as the study area, and combined with remote sensing data, we conducted long-term monitoring of atmospheric electric field, temperature, methane concentration, and other observation parameters, and further carried out indoor gas–solid friction tests. The study shows that methane gas (the concentration of methane at the centralized leakage point is higher than 10,000 ppm) in the permafrost degradation area will release rapidly in spring, and friction with soil, surface plant residues, and water vapor will accelerate atmospheric convection and generate electrostatic and atmospheric electrodischarge phenomena on the surface. The electrostatic and atmospheric electrodischarge accumulated on the surface will further ignite the combustibles near the surface, such as methane gas and plant residues. Therefore, the gradual release of methane gas into the air promotes the feedback mechanism of lightning–wildfire–vegetation, and increases the risk of wildfire in degraded permafrost areas through frictional electrification (i.e., electrostatic and atmospheric electrodischarge). Article in Journal/Newspaper permafrost Unknown Sustainability 14 15 9193 |
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Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
China Heilongjiang province Xiao Xing’an Mountains permafrost methane emissions static electricity envir geo |
spellingShingle |
China Heilongjiang province Xiao Xing’an Mountains permafrost methane emissions static electricity envir geo Zhichao Xu Wei Shan Ying Guo Chengcheng Zhang Lisha Qiu Swamp Wetlands in Degraded Permafrost Areas Release Large Amounts of Methane and May Promote Wildfires through Friction Electrification |
topic_facet |
China Heilongjiang province Xiao Xing’an Mountains permafrost methane emissions static electricity envir geo |
description |
Affected by global warming, permafrost degradation releases a large amount of methane gas, and this part of flammable methane may increase the frequency of wildfires. To study the influence mechanism of methane emission on wildfires in degraded permafrost regions, we selected the northwest section of Xiaoxing’an Mountains in China as the study area, and combined with remote sensing data, we conducted long-term monitoring of atmospheric electric field, temperature, methane concentration, and other observation parameters, and further carried out indoor gas–solid friction tests. The study shows that methane gas (the concentration of methane at the centralized leakage point is higher than 10,000 ppm) in the permafrost degradation area will release rapidly in spring, and friction with soil, surface plant residues, and water vapor will accelerate atmospheric convection and generate electrostatic and atmospheric electrodischarge phenomena on the surface. The electrostatic and atmospheric electrodischarge accumulated on the surface will further ignite the combustibles near the surface, such as methane gas and plant residues. Therefore, the gradual release of methane gas into the air promotes the feedback mechanism of lightning–wildfire–vegetation, and increases the risk of wildfire in degraded permafrost areas through frictional electrification (i.e., electrostatic and atmospheric electrodischarge). |
format |
Article in Journal/Newspaper |
author |
Zhichao Xu Wei Shan Ying Guo Chengcheng Zhang Lisha Qiu |
author_facet |
Zhichao Xu Wei Shan Ying Guo Chengcheng Zhang Lisha Qiu |
author_sort |
Zhichao Xu |
title |
Swamp Wetlands in Degraded Permafrost Areas Release Large Amounts of Methane and May Promote Wildfires through Friction Electrification |
title_short |
Swamp Wetlands in Degraded Permafrost Areas Release Large Amounts of Methane and May Promote Wildfires through Friction Electrification |
title_full |
Swamp Wetlands in Degraded Permafrost Areas Release Large Amounts of Methane and May Promote Wildfires through Friction Electrification |
title_fullStr |
Swamp Wetlands in Degraded Permafrost Areas Release Large Amounts of Methane and May Promote Wildfires through Friction Electrification |
title_full_unstemmed |
Swamp Wetlands in Degraded Permafrost Areas Release Large Amounts of Methane and May Promote Wildfires through Friction Electrification |
title_sort |
swamp wetlands in degraded permafrost areas release large amounts of methane and may promote wildfires through friction electrification |
publisher |
MDPI AG |
publishDate |
2022 |
url |
https://doi.org/10.3390/su14159193 https://doaj.org/article/50181eab1d0b485a97966a251b5148a3 |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
Sustainability, Vol 14, Iss 9193, p 9193 (2022) |
op_relation |
doi:10.3390/su14159193 2071-1050 https://doaj.org/article/50181eab1d0b485a97966a251b5148a3 |
op_rights |
undefined |
op_doi |
https://doi.org/10.3390/su14159193 |
container_title |
Sustainability |
container_volume |
14 |
container_issue |
15 |
container_start_page |
9193 |
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1766163766290939904 |