Soil texture influences soil bacterial biomass in the permafrost-affected alpine desert of the Tibetan plateau
Under warm climate conditions, permafrost thawing results in the substantial release of carbon (C) into the atmosphere and potentially triggers strong positive feedback to global warming. Soil microorganisms play an important role in decomposing organic C in permafrost, thus potentially regulating t...
Published in: | Frontiers in Microbiology |
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Language: | English |
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2022
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Online Access: | https://curis.ku.dk/portal/da/publications/soil-texture-influences-soil-bacterial-biomass-in-the-permafrostaffected-alpine-desert-of-the-tibetan-plateau(bbff292c-45bb-4939-b220-d7d5ad1e9a67).html https://doi.org/10.3389/fmicb.2022.1007194 https://curis.ku.dk/ws/files/332119330/Soil_texture_influences_soil_bacterial.pdf |
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ftcopenhagenunip:oai:pure.atira.dk:publications/bbff292c-45bb-4939-b220-d7d5ad1e9a67 2024-06-09T07:48:56+00:00 Soil texture influences soil bacterial biomass in the permafrost-affected alpine desert of the Tibetan plateau Shao, Ming Zhang, Shengyin Niu, Bin Pei, Yu Song, Sen Lei, Tianzhu Yun, Hanbo 2022 application/pdf https://curis.ku.dk/portal/da/publications/soil-texture-influences-soil-bacterial-biomass-in-the-permafrostaffected-alpine-desert-of-the-tibetan-plateau(bbff292c-45bb-4939-b220-d7d5ad1e9a67).html https://doi.org/10.3389/fmicb.2022.1007194 https://curis.ku.dk/ws/files/332119330/Soil_texture_influences_soil_bacterial.pdf eng eng info:eu-repo/semantics/openAccess Shao , M , Zhang , S , Niu , B , Pei , Y , Song , S , Lei , T & Yun , H 2022 , ' Soil texture influences soil bacterial biomass in the permafrost-affected alpine desert of the Tibetan plateau ' , Frontiers in Microbiology , vol. 13 , 1007194 . https://doi.org/10.3389/fmicb.2022.1007194 alkaline permafrost regions climate warming microbial biomass soil organic carbon soil texture Tibetan plateau article 2022 ftcopenhagenunip https://doi.org/10.3389/fmicb.2022.1007194 2024-05-16T11:29:27Z Under warm climate conditions, permafrost thawing results in the substantial release of carbon (C) into the atmosphere and potentially triggers strong positive feedback to global warming. Soil microorganisms play an important role in decomposing organic C in permafrost, thus potentially regulating the ecosystem C balance in permafrost-affected regions. Soil microbial community and biomass are mainly affected by soil organic carbon (SOC) content and soil texture. Most studies have focused on acidic permafrost soil (pH < 7), whereas few examined alkaline permafrost-affected soil (pH > 7). In this study, we analyzed soil microbial communities and biomass in the alpine desert and steppe on the Tibetan plateau, where the soil pH values were approximately 8.7 ± 0.2 and 8.5 ± 0.1, respectively. Our results revealed that microbial biomass was significantly associated with mean grain size (MGS) and SOC content in alkaline permafrost-affected soils (p < 0.05). In particular, bacterial and fungal biomasses were affected by SOC content in the alpine steppe, whereas bacterial and fungal biomasses were mainly affected by MGS and SOC content, respectively, in the alpine desert. Combined with the results of the structural equation model, those findings suggest that SOC content affects soil texture under high pH-value (pH 8–9) and that soil microbial biomass is indirectly affected. Soils in the alpine steppe and desert are dominated by plagioclase, which provides colonization sites for bacterial communities. This study aimed to highlight the importance of soil texture in managing soil microbial biomass and demonstrate the differential impacts of soil texture on fungal and bacterial communities in alkaline permafrost-affected regions. Article in Journal/Newspaper permafrost University of Copenhagen: Research Frontiers in Microbiology 13 |
institution |
Open Polar |
collection |
University of Copenhagen: Research |
op_collection_id |
ftcopenhagenunip |
language |
English |
topic |
alkaline permafrost regions climate warming microbial biomass soil organic carbon soil texture Tibetan plateau |
spellingShingle |
alkaline permafrost regions climate warming microbial biomass soil organic carbon soil texture Tibetan plateau Shao, Ming Zhang, Shengyin Niu, Bin Pei, Yu Song, Sen Lei, Tianzhu Yun, Hanbo Soil texture influences soil bacterial biomass in the permafrost-affected alpine desert of the Tibetan plateau |
topic_facet |
alkaline permafrost regions climate warming microbial biomass soil organic carbon soil texture Tibetan plateau |
description |
Under warm climate conditions, permafrost thawing results in the substantial release of carbon (C) into the atmosphere and potentially triggers strong positive feedback to global warming. Soil microorganisms play an important role in decomposing organic C in permafrost, thus potentially regulating the ecosystem C balance in permafrost-affected regions. Soil microbial community and biomass are mainly affected by soil organic carbon (SOC) content and soil texture. Most studies have focused on acidic permafrost soil (pH < 7), whereas few examined alkaline permafrost-affected soil (pH > 7). In this study, we analyzed soil microbial communities and biomass in the alpine desert and steppe on the Tibetan plateau, where the soil pH values were approximately 8.7 ± 0.2 and 8.5 ± 0.1, respectively. Our results revealed that microbial biomass was significantly associated with mean grain size (MGS) and SOC content in alkaline permafrost-affected soils (p < 0.05). In particular, bacterial and fungal biomasses were affected by SOC content in the alpine steppe, whereas bacterial and fungal biomasses were mainly affected by MGS and SOC content, respectively, in the alpine desert. Combined with the results of the structural equation model, those findings suggest that SOC content affects soil texture under high pH-value (pH 8–9) and that soil microbial biomass is indirectly affected. Soils in the alpine steppe and desert are dominated by plagioclase, which provides colonization sites for bacterial communities. This study aimed to highlight the importance of soil texture in managing soil microbial biomass and demonstrate the differential impacts of soil texture on fungal and bacterial communities in alkaline permafrost-affected regions. |
format |
Article in Journal/Newspaper |
author |
Shao, Ming Zhang, Shengyin Niu, Bin Pei, Yu Song, Sen Lei, Tianzhu Yun, Hanbo |
author_facet |
Shao, Ming Zhang, Shengyin Niu, Bin Pei, Yu Song, Sen Lei, Tianzhu Yun, Hanbo |
author_sort |
Shao, Ming |
title |
Soil texture influences soil bacterial biomass in the permafrost-affected alpine desert of the Tibetan plateau |
title_short |
Soil texture influences soil bacterial biomass in the permafrost-affected alpine desert of the Tibetan plateau |
title_full |
Soil texture influences soil bacterial biomass in the permafrost-affected alpine desert of the Tibetan plateau |
title_fullStr |
Soil texture influences soil bacterial biomass in the permafrost-affected alpine desert of the Tibetan plateau |
title_full_unstemmed |
Soil texture influences soil bacterial biomass in the permafrost-affected alpine desert of the Tibetan plateau |
title_sort |
soil texture influences soil bacterial biomass in the permafrost-affected alpine desert of the tibetan plateau |
publishDate |
2022 |
url |
https://curis.ku.dk/portal/da/publications/soil-texture-influences-soil-bacterial-biomass-in-the-permafrostaffected-alpine-desert-of-the-tibetan-plateau(bbff292c-45bb-4939-b220-d7d5ad1e9a67).html https://doi.org/10.3389/fmicb.2022.1007194 https://curis.ku.dk/ws/files/332119330/Soil_texture_influences_soil_bacterial.pdf |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
Shao , M , Zhang , S , Niu , B , Pei , Y , Song , S , Lei , T & Yun , H 2022 , ' Soil texture influences soil bacterial biomass in the permafrost-affected alpine desert of the Tibetan plateau ' , Frontiers in Microbiology , vol. 13 , 1007194 . https://doi.org/10.3389/fmicb.2022.1007194 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3389/fmicb.2022.1007194 |
container_title |
Frontiers in Microbiology |
container_volume |
13 |
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1801380943719563264 |