Functional Diversity of Soil Microorganisms in Taiga Forests in the Middle and Late Stages of Restoration after Forest Fires
Fire can significantly affect the structure and function of forest soil microorganisms. Therefore, it is important to study the effects of different fire intensities on soil microbial carbon source utilization capacity in cold-temperate larch forests to protect and utilize forest ecosystems. In this...
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MDPI AG
2024
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Online Access: | https://doi.org/10.3390/f15071220 https://doaj.org/article/4201e9e86a9e4b78b444aa134900a5ea |
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ftdoajarticles:oai:doaj.org/article:4201e9e86a9e4b78b444aa134900a5ea 2024-09-09T20:11:22+00:00 Functional Diversity of Soil Microorganisms in Taiga Forests in the Middle and Late Stages of Restoration after Forest Fires Zhichao Cheng Mingliang Gao Hong Pan Xiaoyu Fu Dan Wei Xinming Lu Song Wu Libin Yang 2024-07-01T00:00:00Z https://doi.org/10.3390/f15071220 https://doaj.org/article/4201e9e86a9e4b78b444aa134900a5ea EN eng MDPI AG https://www.mdpi.com/1999-4907/15/7/1220 https://doaj.org/toc/1999-4907 doi:10.3390/f15071220 1999-4907 https://doaj.org/article/4201e9e86a9e4b78b444aa134900a5ea Forests, Vol 15, Iss 7, p 1220 (2024) cold-temperate Larix gmelinii forest middle- and late-stage fire recovery fire-burned sites soil microorganisms carbon source utilization capacity Biolog-Eco microplate technology Plant ecology QK900-989 article 2024 ftdoajarticles https://doi.org/10.3390/f15071220 2024-08-05T17:48:50Z Fire can significantly affect the structure and function of forest soil microorganisms. Therefore, it is important to study the effects of different fire intensities on soil microbial carbon source utilization capacity in cold-temperate larch forests to protect and utilize forest ecosystems. In this study, we investigated the effects of different burning intensities on the carbon utilization capacity of soil microorganisms in fire sites from 2010 and 2000 using Biolog-Eco technology. Our findings revealed that (1) fire significantly increased soil pH, AN (available nitrogen), and AK (available potassium) ( p < 0.05); (2) fire significantly increased the average color change rate (AWCD) of soil microorganisms ( p < 0.05); (3) the Shannon index of soil microorganisms increased significantly, whereas the Simpson index and the McIntosh index decreased significantly after the fire—however, the McIntosh index in the 10M site was not altered; (4) the metabolic functions of soil microbial communities differed significantly among different fire intensities—MC (moisture content), TN (total nitrogen), and AK were the most influential soil environmental factors in the soil microbial community; and (5) mid-term fire restoration significantly increased microbial responses to carbohydrates, amino acids, esters, alcohols, amines, and acids, while late-fire burn sites significantly increased the microbial utilization intensity of amino acids, esters, and acids. In conclusion, fire significantly altered the functional diversity of soil microorganisms and microbial activities related to carbon source substrate utilization. Additionally, the ability of microorganisms to utilize a single carbon source substrate was also altered. Article in Journal/Newspaper taiga Directory of Open Access Journals: DOAJ Articles McIntosh ENVELOPE(168.683,168.683,-77.517,-77.517) Forests 15 7 1220 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
cold-temperate Larix gmelinii forest middle- and late-stage fire recovery fire-burned sites soil microorganisms carbon source utilization capacity Biolog-Eco microplate technology Plant ecology QK900-989 |
spellingShingle |
cold-temperate Larix gmelinii forest middle- and late-stage fire recovery fire-burned sites soil microorganisms carbon source utilization capacity Biolog-Eco microplate technology Plant ecology QK900-989 Zhichao Cheng Mingliang Gao Hong Pan Xiaoyu Fu Dan Wei Xinming Lu Song Wu Libin Yang Functional Diversity of Soil Microorganisms in Taiga Forests in the Middle and Late Stages of Restoration after Forest Fires |
topic_facet |
cold-temperate Larix gmelinii forest middle- and late-stage fire recovery fire-burned sites soil microorganisms carbon source utilization capacity Biolog-Eco microplate technology Plant ecology QK900-989 |
description |
Fire can significantly affect the structure and function of forest soil microorganisms. Therefore, it is important to study the effects of different fire intensities on soil microbial carbon source utilization capacity in cold-temperate larch forests to protect and utilize forest ecosystems. In this study, we investigated the effects of different burning intensities on the carbon utilization capacity of soil microorganisms in fire sites from 2010 and 2000 using Biolog-Eco technology. Our findings revealed that (1) fire significantly increased soil pH, AN (available nitrogen), and AK (available potassium) ( p < 0.05); (2) fire significantly increased the average color change rate (AWCD) of soil microorganisms ( p < 0.05); (3) the Shannon index of soil microorganisms increased significantly, whereas the Simpson index and the McIntosh index decreased significantly after the fire—however, the McIntosh index in the 10M site was not altered; (4) the metabolic functions of soil microbial communities differed significantly among different fire intensities—MC (moisture content), TN (total nitrogen), and AK were the most influential soil environmental factors in the soil microbial community; and (5) mid-term fire restoration significantly increased microbial responses to carbohydrates, amino acids, esters, alcohols, amines, and acids, while late-fire burn sites significantly increased the microbial utilization intensity of amino acids, esters, and acids. In conclusion, fire significantly altered the functional diversity of soil microorganisms and microbial activities related to carbon source substrate utilization. Additionally, the ability of microorganisms to utilize a single carbon source substrate was also altered. |
format |
Article in Journal/Newspaper |
author |
Zhichao Cheng Mingliang Gao Hong Pan Xiaoyu Fu Dan Wei Xinming Lu Song Wu Libin Yang |
author_facet |
Zhichao Cheng Mingliang Gao Hong Pan Xiaoyu Fu Dan Wei Xinming Lu Song Wu Libin Yang |
author_sort |
Zhichao Cheng |
title |
Functional Diversity of Soil Microorganisms in Taiga Forests in the Middle and Late Stages of Restoration after Forest Fires |
title_short |
Functional Diversity of Soil Microorganisms in Taiga Forests in the Middle and Late Stages of Restoration after Forest Fires |
title_full |
Functional Diversity of Soil Microorganisms in Taiga Forests in the Middle and Late Stages of Restoration after Forest Fires |
title_fullStr |
Functional Diversity of Soil Microorganisms in Taiga Forests in the Middle and Late Stages of Restoration after Forest Fires |
title_full_unstemmed |
Functional Diversity of Soil Microorganisms in Taiga Forests in the Middle and Late Stages of Restoration after Forest Fires |
title_sort |
functional diversity of soil microorganisms in taiga forests in the middle and late stages of restoration after forest fires |
publisher |
MDPI AG |
publishDate |
2024 |
url |
https://doi.org/10.3390/f15071220 https://doaj.org/article/4201e9e86a9e4b78b444aa134900a5ea |
long_lat |
ENVELOPE(168.683,168.683,-77.517,-77.517) |
geographic |
McIntosh |
geographic_facet |
McIntosh |
genre |
taiga |
genre_facet |
taiga |
op_source |
Forests, Vol 15, Iss 7, p 1220 (2024) |
op_relation |
https://www.mdpi.com/1999-4907/15/7/1220 https://doaj.org/toc/1999-4907 doi:10.3390/f15071220 1999-4907 https://doaj.org/article/4201e9e86a9e4b78b444aa134900a5ea |
op_doi |
https://doi.org/10.3390/f15071220 |
container_title |
Forests |
container_volume |
15 |
container_issue |
7 |
container_start_page |
1220 |
_version_ |
1809945914722222080 |