Effects of Permafrost Degradation on Soil Carbon and Nitrogen Cycling in Permafrost Wetlands
Climate change is one of the greatest threats to high-latitude permafrost and leads to serious permafrost degradation. However, few attention has been paid to whether peat soil carbon or nitrogen is sensitive to permafrost degradation. This study has selected three typical sample areas (MoHe-continu...
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Online Access: | http://dx.doi.org/10.3389/feart.2022.911314 https://www.frontiersin.org/articles/10.3389/feart.2022.911314/full |
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crfrontiers:10.3389/feart.2022.911314 2024-02-11T10:07:46+01:00 Effects of Permafrost Degradation on Soil Carbon and Nitrogen Cycling in Permafrost Wetlands Wang, Di Zang, Shuying Wang, Lingyan Ma, Dalong Li, Miao 2022 http://dx.doi.org/10.3389/feart.2022.911314 https://www.frontiersin.org/articles/10.3389/feart.2022.911314/full unknown Frontiers Media SA https://creativecommons.org/licenses/by/4.0/ Frontiers in Earth Science volume 10 ISSN 2296-6463 General Earth and Planetary Sciences journal-article 2022 crfrontiers https://doi.org/10.3389/feart.2022.911314 2024-01-26T09:57:21Z Climate change is one of the greatest threats to high-latitude permafrost and leads to serious permafrost degradation. However, few attention has been paid to whether peat soil carbon or nitrogen is sensitive to permafrost degradation. This study has selected three typical sample areas (MoHe-continuous permafrost, TaHe-Island-shaped melting permafrost, Jagdaqi-Island-shaped melting permafrost) as research object to compare the response rate and degree of peat soil carbon and nitrogen under permafrost degradation. The results show that soil organic carbon and nitrogen contents are the highest in 0–10 cm soil and permafrost regions show obvious surface aggregation. The carbon content of different types of frozen soil decreases with the depth of soil layer, and the differences are significant ( p < 0.01). The distribution pattern of total nitrogen content in each soil layer among different permafrost types is Mohe < Tahe < Jagedaqi. And when it is getting vertically deeper than the surface layer, there is no significant difference between the soil layers in soil profile. The study also focuses on the variations of carbon and nitrogen content in different soil layers of peatland in typical permafrost regions. The results show that soil carbon responds faster to the degradation of frozen soil than soil nitrogen. Moreover, the accumulation degree of soil carbon is also significantly higher than soil nitrogen. Under climate change and for better permafrost conservation, it is necessary to study how the peatland’s soil carbon and the nitrogen are influenced by the permafrost degradation in high latitude. Article in Journal/Newspaper permafrost Frontiers (Publisher) Frontiers in Earth Science 10 |
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topic |
General Earth and Planetary Sciences |
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General Earth and Planetary Sciences Wang, Di Zang, Shuying Wang, Lingyan Ma, Dalong Li, Miao Effects of Permafrost Degradation on Soil Carbon and Nitrogen Cycling in Permafrost Wetlands |
topic_facet |
General Earth and Planetary Sciences |
description |
Climate change is one of the greatest threats to high-latitude permafrost and leads to serious permafrost degradation. However, few attention has been paid to whether peat soil carbon or nitrogen is sensitive to permafrost degradation. This study has selected three typical sample areas (MoHe-continuous permafrost, TaHe-Island-shaped melting permafrost, Jagdaqi-Island-shaped melting permafrost) as research object to compare the response rate and degree of peat soil carbon and nitrogen under permafrost degradation. The results show that soil organic carbon and nitrogen contents are the highest in 0–10 cm soil and permafrost regions show obvious surface aggregation. The carbon content of different types of frozen soil decreases with the depth of soil layer, and the differences are significant ( p < 0.01). The distribution pattern of total nitrogen content in each soil layer among different permafrost types is Mohe < Tahe < Jagedaqi. And when it is getting vertically deeper than the surface layer, there is no significant difference between the soil layers in soil profile. The study also focuses on the variations of carbon and nitrogen content in different soil layers of peatland in typical permafrost regions. The results show that soil carbon responds faster to the degradation of frozen soil than soil nitrogen. Moreover, the accumulation degree of soil carbon is also significantly higher than soil nitrogen. Under climate change and for better permafrost conservation, it is necessary to study how the peatland’s soil carbon and the nitrogen are influenced by the permafrost degradation in high latitude. |
format |
Article in Journal/Newspaper |
author |
Wang, Di Zang, Shuying Wang, Lingyan Ma, Dalong Li, Miao |
author_facet |
Wang, Di Zang, Shuying Wang, Lingyan Ma, Dalong Li, Miao |
author_sort |
Wang, Di |
title |
Effects of Permafrost Degradation on Soil Carbon and Nitrogen Cycling in Permafrost Wetlands |
title_short |
Effects of Permafrost Degradation on Soil Carbon and Nitrogen Cycling in Permafrost Wetlands |
title_full |
Effects of Permafrost Degradation on Soil Carbon and Nitrogen Cycling in Permafrost Wetlands |
title_fullStr |
Effects of Permafrost Degradation on Soil Carbon and Nitrogen Cycling in Permafrost Wetlands |
title_full_unstemmed |
Effects of Permafrost Degradation on Soil Carbon and Nitrogen Cycling in Permafrost Wetlands |
title_sort |
effects of permafrost degradation on soil carbon and nitrogen cycling in permafrost wetlands |
publisher |
Frontiers Media SA |
publishDate |
2022 |
url |
http://dx.doi.org/10.3389/feart.2022.911314 https://www.frontiersin.org/articles/10.3389/feart.2022.911314/full |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
Frontiers in Earth Science volume 10 ISSN 2296-6463 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3389/feart.2022.911314 |
container_title |
Frontiers in Earth Science |
container_volume |
10 |
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1790606478378270720 |