Soil Microbial Resource Limitations and Community Assembly Along a Camellia oleifera Plantation Chronosequence

Understanding soil microbial element limitation and its relation with the microbial community can help in elucidating the soil fertility status and improving nutrient management of planted forest ecosystems. The stand age of a planted forest determines the aboveground forest biomass and structure an...

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Autores principales: Qiao, Hang, Chen, Longsheng, Hu, Yajun, Deng, Chenghua, Sun, Qi, Deng, Shaohong, Chen, Xiangbi, Mei, Li, Wu, Jinshui, Su, Yirong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8675945/
https://www.ncbi.nlm.nih.gov/pubmed/34925257
http://dx.doi.org/10.3389/fmicb.2021.736165
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author Qiao, Hang
Chen, Longsheng
Hu, Yajun
Deng, Chenghua
Sun, Qi
Deng, Shaohong
Chen, Xiangbi
Mei, Li
Wu, Jinshui
Su, Yirong
author_facet Qiao, Hang
Chen, Longsheng
Hu, Yajun
Deng, Chenghua
Sun, Qi
Deng, Shaohong
Chen, Xiangbi
Mei, Li
Wu, Jinshui
Su, Yirong
author_sort Qiao, Hang
collection PubMed
description Understanding soil microbial element limitation and its relation with the microbial community can help in elucidating the soil fertility status and improving nutrient management of planted forest ecosystems. The stand age of a planted forest determines the aboveground forest biomass and structure and underground microbial function and diversity. In this study, we investigated 30 plantations of Camellia oleifera distributed across the subtropical region of China that we classified into four stand ages (planted <9 years, 9–20 years, 21–60 years, and >60 years age). Enzymatic stoichiometry analysis showed that microbial metabolism in the forests was mainly limited by C and P. P limitation significantly decreased and C limitation slightly increased along the stand age gradient. The alpha diversity of the soil microbiota remained steady along stand age, while microbial communities gradually converged from scattered to clustered, which was accompanied by a decrease in network complexity. The soil bacterial community assembly shifted from stochastic to deterministic processes, which probably contributed to a decrease in soil pH along stand age. Our findings emphasize that the stand age regulated the soil microbial metabolism limitation and community assembly, which provides new insight into the improvement of C and P management in subtropical planted forest.
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spelling pubmed-86759452021-12-17 Soil Microbial Resource Limitations and Community Assembly Along a Camellia oleifera Plantation Chronosequence Qiao, Hang Chen, Longsheng Hu, Yajun Deng, Chenghua Sun, Qi Deng, Shaohong Chen, Xiangbi Mei, Li Wu, Jinshui Su, Yirong Front Microbiol Microbiology Understanding soil microbial element limitation and its relation with the microbial community can help in elucidating the soil fertility status and improving nutrient management of planted forest ecosystems. The stand age of a planted forest determines the aboveground forest biomass and structure and underground microbial function and diversity. In this study, we investigated 30 plantations of Camellia oleifera distributed across the subtropical region of China that we classified into four stand ages (planted <9 years, 9–20 years, 21–60 years, and >60 years age). Enzymatic stoichiometry analysis showed that microbial metabolism in the forests was mainly limited by C and P. P limitation significantly decreased and C limitation slightly increased along the stand age gradient. The alpha diversity of the soil microbiota remained steady along stand age, while microbial communities gradually converged from scattered to clustered, which was accompanied by a decrease in network complexity. The soil bacterial community assembly shifted from stochastic to deterministic processes, which probably contributed to a decrease in soil pH along stand age. Our findings emphasize that the stand age regulated the soil microbial metabolism limitation and community assembly, which provides new insight into the improvement of C and P management in subtropical planted forest. Frontiers Media S.A. 2021-12-02 /pmc/articles/PMC8675945/ /pubmed/34925257 http://dx.doi.org/10.3389/fmicb.2021.736165 Text en Copyright © 2021 Qiao, Chen, Hu, Deng, Sun, Deng, Chen, Mei, Wu and Su. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Microbiology
Qiao, Hang
Chen, Longsheng
Hu, Yajun
Deng, Chenghua
Sun, Qi
Deng, Shaohong
Chen, Xiangbi
Mei, Li
Wu, Jinshui
Su, Yirong
Soil Microbial Resource Limitations and Community Assembly Along a Camellia oleifera Plantation Chronosequence
title Soil Microbial Resource Limitations and Community Assembly Along a Camellia oleifera Plantation Chronosequence
title_full Soil Microbial Resource Limitations and Community Assembly Along a Camellia oleifera Plantation Chronosequence
title_fullStr Soil Microbial Resource Limitations and Community Assembly Along a Camellia oleifera Plantation Chronosequence
title_full_unstemmed Soil Microbial Resource Limitations and Community Assembly Along a Camellia oleifera Plantation Chronosequence
title_short Soil Microbial Resource Limitations and Community Assembly Along a Camellia oleifera Plantation Chronosequence
title_sort soil microbial resource limitations and community assembly along a camellia oleifera plantation chronosequence
topic Microbiology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8675945/
https://www.ncbi.nlm.nih.gov/pubmed/34925257
http://dx.doi.org/10.3389/fmicb.2021.736165
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