Seasonal variation in near-surface seasonally thawed active layer and permafrost soil microbial communities
Understanding how soil microbes respond to permafrost thaw is critical to predicting the implications of climate change for soil processes. However, our knowledge of microbial responses to warming is mainly based on laboratory thaw experiments, and field sampling in warmer months when sites are more...
Published in: | Environmental Research Letters |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
IOP Publishing
2023
|
Subjects: | |
Online Access: | https://doi.org/10.1088/1748-9326/acc542 https://doaj.org/article/28c19747a8494951ae01889f96076aae |
id |
ftdoajarticles:oai:doaj.org/article:28c19747a8494951ae01889f96076aae |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:28c19747a8494951ae01889f96076aae 2023-09-05T13:22:27+02:00 Seasonal variation in near-surface seasonally thawed active layer and permafrost soil microbial communities Christopher C M Baker Amanda J Barker Thomas A Douglas Stacey J Doherty Robyn A Barbato 2023-01-01T00:00:00Z https://doi.org/10.1088/1748-9326/acc542 https://doaj.org/article/28c19747a8494951ae01889f96076aae EN eng IOP Publishing https://doi.org/10.1088/1748-9326/acc542 https://doaj.org/toc/1748-9326 doi:10.1088/1748-9326/acc542 1748-9326 https://doaj.org/article/28c19747a8494951ae01889f96076aae Environmental Research Letters, Vol 18, Iss 5, p 055001 (2023) permafrost soil microbial community cryosphere Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 article 2023 ftdoajarticles https://doi.org/10.1088/1748-9326/acc542 2023-08-13T00:36:58Z Understanding how soil microbes respond to permafrost thaw is critical to predicting the implications of climate change for soil processes. However, our knowledge of microbial responses to warming is mainly based on laboratory thaw experiments, and field sampling in warmer months when sites are more accessible. In this study, we sampled a depth profile through seasonally thawed active layer and permafrost in the Imnavait Creek Watershed, Alaska, USA over the growing season from summer to late fall. Amplicon sequencing showed that bacterial and fungal communities differed in composition across both sampling depths and sampling months. Surface communities were most variable while those from the deepest samples, which remained frozen throughout our sampling period, showed little to no variation over time. However, community variation was not explained by trace metal concentrations, soil nutrient content, pH, or soil condition (frozen/thawed), except insofar as those measurements were correlated with depth. Our results highlight the importance of collecting samples at multiple times throughout the year to capture temporal variation, and suggest that data from across the annual freeze-thaw cycle might help predict microbial responses to permafrost thaw. Article in Journal/Newspaper permafrost Alaska Directory of Open Access Journals: DOAJ Articles Environmental Research Letters 18 5 055001 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
permafrost soil microbial community cryosphere Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 |
spellingShingle |
permafrost soil microbial community cryosphere Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 Christopher C M Baker Amanda J Barker Thomas A Douglas Stacey J Doherty Robyn A Barbato Seasonal variation in near-surface seasonally thawed active layer and permafrost soil microbial communities |
topic_facet |
permafrost soil microbial community cryosphere Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 |
description |
Understanding how soil microbes respond to permafrost thaw is critical to predicting the implications of climate change for soil processes. However, our knowledge of microbial responses to warming is mainly based on laboratory thaw experiments, and field sampling in warmer months when sites are more accessible. In this study, we sampled a depth profile through seasonally thawed active layer and permafrost in the Imnavait Creek Watershed, Alaska, USA over the growing season from summer to late fall. Amplicon sequencing showed that bacterial and fungal communities differed in composition across both sampling depths and sampling months. Surface communities were most variable while those from the deepest samples, which remained frozen throughout our sampling period, showed little to no variation over time. However, community variation was not explained by trace metal concentrations, soil nutrient content, pH, or soil condition (frozen/thawed), except insofar as those measurements were correlated with depth. Our results highlight the importance of collecting samples at multiple times throughout the year to capture temporal variation, and suggest that data from across the annual freeze-thaw cycle might help predict microbial responses to permafrost thaw. |
format |
Article in Journal/Newspaper |
author |
Christopher C M Baker Amanda J Barker Thomas A Douglas Stacey J Doherty Robyn A Barbato |
author_facet |
Christopher C M Baker Amanda J Barker Thomas A Douglas Stacey J Doherty Robyn A Barbato |
author_sort |
Christopher C M Baker |
title |
Seasonal variation in near-surface seasonally thawed active layer and permafrost soil microbial communities |
title_short |
Seasonal variation in near-surface seasonally thawed active layer and permafrost soil microbial communities |
title_full |
Seasonal variation in near-surface seasonally thawed active layer and permafrost soil microbial communities |
title_fullStr |
Seasonal variation in near-surface seasonally thawed active layer and permafrost soil microbial communities |
title_full_unstemmed |
Seasonal variation in near-surface seasonally thawed active layer and permafrost soil microbial communities |
title_sort |
seasonal variation in near-surface seasonally thawed active layer and permafrost soil microbial communities |
publisher |
IOP Publishing |
publishDate |
2023 |
url |
https://doi.org/10.1088/1748-9326/acc542 https://doaj.org/article/28c19747a8494951ae01889f96076aae |
genre |
permafrost Alaska |
genre_facet |
permafrost Alaska |
op_source |
Environmental Research Letters, Vol 18, Iss 5, p 055001 (2023) |
op_relation |
https://doi.org/10.1088/1748-9326/acc542 https://doaj.org/toc/1748-9326 doi:10.1088/1748-9326/acc542 1748-9326 https://doaj.org/article/28c19747a8494951ae01889f96076aae |
op_doi |
https://doi.org/10.1088/1748-9326/acc542 |
container_title |
Environmental Research Letters |
container_volume |
18 |
container_issue |
5 |
container_start_page |
055001 |
_version_ |
1776202979653713920 |