Soil texture and microorganisms dominantly determine the subsoil carbonate content in the permafrost-affected area of the Tibetan Plateau
Under climate warming conditions, storage and conversion of soil inorganic carbon (SIC) play an important role in regulating soil carbon (C) dynamics and atmospheric CO2 content in arid and semi-arid areas. Carbonate formation in alkaline soil can fix a large amount of C in the form of inorganic C,...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-03-01
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| Series: | Frontiers in Microbiology |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmicb.2023.1125832/full |
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| author | Ming Shao Ming Shao Shengyin Zhang Yu Pei Yu Pei Sen Song Sen Song Tianzhu Lei Hanbo Yun Hanbo Yun Hanbo Yun |
| author_facet | Ming Shao Ming Shao Shengyin Zhang Yu Pei Yu Pei Sen Song Sen Song Tianzhu Lei Hanbo Yun Hanbo Yun Hanbo Yun |
| author_sort | Ming Shao |
| collection | DOAJ |
| description | Under climate warming conditions, storage and conversion of soil inorganic carbon (SIC) play an important role in regulating soil carbon (C) dynamics and atmospheric CO2 content in arid and semi-arid areas. Carbonate formation in alkaline soil can fix a large amount of C in the form of inorganic C, resulting in soil C sink and potentially slowing global warming trends. Therefore, understanding the driving factors affecting carbonate mineral formation can help better predict future climate change. Till date, most studies have focused on abiotic drivers (climate and soil), whereas a few examined the effects of biotic drivers on carbonate formation and SIC stock. In this study, SIC, calcite content, and soil microbial communities were analyzed in three soil layers (0–5 cm, 20–30 cm, and 50–60 cm) on the Beiluhe Basin of Tibetan Plateau. Results revealed that in arid and semi-arid areas, SIC and soil calcite content did not exhibit significant differences among the three soil layers; however, the main factors affecting the calcite content in different soil layers are different. In the topsoil (0–5 cm), the most important predictor of calcite content was soil water content. In the subsoil layers 20–30 cm and 50–60 cm, the ratio of bacterial biomass to fungal biomass (B/F) and soil silt content, respectively, had larger contributions to the variation of calcite content than the other factors. Plagioclase provided a site for microbial colonization, whereas Ca2+ contributed in bacteria-mediated calcite formation. This study aims to highlight the importance of soil microorganisms in managing soil calcite content and reveals preliminary results on bacteria-mediated conversion of organic to inorganic C. |
| first_indexed | 2024-04-09T23:31:54Z |
| format | Article |
| id | doaj.art-7bc7ef251eae42599775ed4eb332f141 |
| institution | Directory Open Access Journal |
| issn | 1664-302X |
| language | English |
| last_indexed | 2024-04-09T23:31:54Z |
| publishDate | 2023-03-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Microbiology |
| spelling | doaj.art-7bc7ef251eae42599775ed4eb332f1412023-03-21T05:13:16ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2023-03-011410.3389/fmicb.2023.11258321125832Soil texture and microorganisms dominantly determine the subsoil carbonate content in the permafrost-affected area of the Tibetan PlateauMing Shao0Ming Shao1Shengyin Zhang2Yu Pei3Yu Pei4Sen Song5Sen Song6Tianzhu Lei7Hanbo Yun8Hanbo Yun9Hanbo Yun10Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences (CAS), Lanzhou, ChinaUniversity of Chinese Academy of Sciences, Beijing, ChinaNorthwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences (CAS), Lanzhou, ChinaNorthwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences (CAS), Lanzhou, ChinaUniversity of Chinese Academy of Sciences, Beijing, ChinaNorthwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences (CAS), Lanzhou, ChinaUniversity of Chinese Academy of Sciences, Beijing, ChinaNorthwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences (CAS), Lanzhou, ChinaState Key Laboratory of Frozen Soil Engineering, BeiLu’He Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences (CAS), Lanzhou, ChinaDepartment of Geosciences and Natural Resource Management, Center for Permafrost (CENPERM), University of Copenhagen, Copenhagen, DenmarkDepartment of Earth, Atmospheric and Planetary Sciences, Purdue University, West Lafayette, IN, United StatesUnder climate warming conditions, storage and conversion of soil inorganic carbon (SIC) play an important role in regulating soil carbon (C) dynamics and atmospheric CO2 content in arid and semi-arid areas. Carbonate formation in alkaline soil can fix a large amount of C in the form of inorganic C, resulting in soil C sink and potentially slowing global warming trends. Therefore, understanding the driving factors affecting carbonate mineral formation can help better predict future climate change. Till date, most studies have focused on abiotic drivers (climate and soil), whereas a few examined the effects of biotic drivers on carbonate formation and SIC stock. In this study, SIC, calcite content, and soil microbial communities were analyzed in three soil layers (0–5 cm, 20–30 cm, and 50–60 cm) on the Beiluhe Basin of Tibetan Plateau. Results revealed that in arid and semi-arid areas, SIC and soil calcite content did not exhibit significant differences among the three soil layers; however, the main factors affecting the calcite content in different soil layers are different. In the topsoil (0–5 cm), the most important predictor of calcite content was soil water content. In the subsoil layers 20–30 cm and 50–60 cm, the ratio of bacterial biomass to fungal biomass (B/F) and soil silt content, respectively, had larger contributions to the variation of calcite content than the other factors. Plagioclase provided a site for microbial colonization, whereas Ca2+ contributed in bacteria-mediated calcite formation. This study aims to highlight the importance of soil microorganisms in managing soil calcite content and reveals preliminary results on bacteria-mediated conversion of organic to inorganic C.https://www.frontiersin.org/articles/10.3389/fmicb.2023.1125832/fullsoil carbon dynamicsoil texturemicroorganismspedogenic carbonate mineralsalkaline permafrost regionsTibetan Plateau |
| spellingShingle | Ming Shao Ming Shao Shengyin Zhang Yu Pei Yu Pei Sen Song Sen Song Tianzhu Lei Hanbo Yun Hanbo Yun Hanbo Yun Soil texture and microorganisms dominantly determine the subsoil carbonate content in the permafrost-affected area of the Tibetan Plateau Frontiers in Microbiology soil carbon dynamic soil texture microorganisms pedogenic carbonate minerals alkaline permafrost regions Tibetan Plateau |
| title | Soil texture and microorganisms dominantly determine the subsoil carbonate content in the permafrost-affected area of the Tibetan Plateau |
| title_full | Soil texture and microorganisms dominantly determine the subsoil carbonate content in the permafrost-affected area of the Tibetan Plateau |
| title_fullStr | Soil texture and microorganisms dominantly determine the subsoil carbonate content in the permafrost-affected area of the Tibetan Plateau |
| title_full_unstemmed | Soil texture and microorganisms dominantly determine the subsoil carbonate content in the permafrost-affected area of the Tibetan Plateau |
| title_short | Soil texture and microorganisms dominantly determine the subsoil carbonate content in the permafrost-affected area of the Tibetan Plateau |
| title_sort | soil texture and microorganisms dominantly determine the subsoil carbonate content in the permafrost affected area of the tibetan plateau |
| topic | soil carbon dynamic soil texture microorganisms pedogenic carbonate minerals alkaline permafrost regions Tibetan Plateau |
| url | https://www.frontiersin.org/articles/10.3389/fmicb.2023.1125832/full |
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