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Abundant taxa enhanced stability of fungal communities according to reduced nitrogen fertilization.

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Title: Abundant taxa enhanced stability of fungal communities according to reduced nitrogen fertilization.
Authors: Han, Heming1 (AUTHOR), Zhang, Bo1 (AUTHOR), Liu, Hao1 (AUTHOR), Li, Yue1 (AUTHOR), Weidong, Xu1 (AUTHOR), Zhang, Liting1 (AUTHOR), Cao, Hui1 (AUTHOR) hcao@njau.edu.cn, Wang, Feng1,2 (AUTHOR) fwang82@163.com
Source: Soil & Tillage Research. Jul2025, Vol. 249, pN.PAG-N.PAG. 1p.
Subjects: Nitrogen fertilizers, Ecological niche, Ecological impact, Nitrogen in soils, Matthew effect, Fungal communities
Abstract: Excessive nitrogen fertilization has emerged as a significant focus of contemporary agricultural research. Reducing nitrogen fertilization is factually a process of decreasing soil nitrogen resource pulses, elucidating the environmental adaptations and ecological processes of soil fungal communities in this process, and contributions of different sub-communities in it, is a core but less known theme. We investigated soil fungal communities and subcommunities in response to reduction of nitrogen fertilization (fertilization rates were 100 %, 75 %, 50 %, and 0 %, respectively), based on a four-year field plot simulation experiment combining high-throughput sequencing technology. The diversity, community stability, environmental correlation, and co-occurrence network of soil fungal communities was analyzed, combined with concomitant alterations in soil nutrient content throughout the process of nitrogen fertilization reduction, aimed to compare the ecological impact of abundant and rare taxa on the whole soil fungal community. Our results showed that the nitrogen fertilization reduction decreased the diversity (Shannon index) and improved the stability of whole fungal communities. In addition, reduction in nitrogen fertilization leads to an improvement in soil pH (from 4.21 to 6.11) and a decrease in ammonium nitrogen and nitrate nitrogen (94.29 and 130.49 mg/kg, respectively), and abundant taxa showing higher sensitivity but less fluctuations in the breadth of the ecological niche to environmental changes. Reduced nitrogen fertilization resulted in a more complex and stable fungal network structure, while abundant taxa had less variability and higher contributions. These findings highlight the dominant role of abundant taxa in maintaining fungal community stability in facing nitrogen reduction strategies. [Display omitted] • Reduction in N fertilization increases the stability of soil fungal communities. • Abundant taxa showing less fluctuation in ecological niche width. • Abundant taxa enhanced stability of fungal networks. • Interactions within the fungal community exhibit a clear "Matthew effect". [ABSTRACT FROM AUTHOR]
Copyright of Soil & Tillage Research is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
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  Data: Abundant taxa enhanced stability of fungal communities according to reduced nitrogen fertilization.
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  Data: <searchLink fieldCode="AR" term="%22Han%2C+Heming%22">Han, Heming</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Bo%22">Zhang, Bo</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Hao%22">Liu, Hao</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Yue%22">Li, Yue</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Weidong%2C+Xu%22">Weidong, Xu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Liting%22">Zhang, Liting</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Cao%2C+Hui%22">Cao, Hui</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> hcao@njau.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Wang%2C+Feng%22">Wang, Feng</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> fwang82@163.com</i>
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  Data: <searchLink fieldCode="DE" term="%22Nitrogen+fertilizers%22">Nitrogen fertilizers</searchLink><br /><searchLink fieldCode="DE" term="%22Ecological+niche%22">Ecological niche</searchLink><br /><searchLink fieldCode="DE" term="%22Ecological+impact%22">Ecological impact</searchLink><br /><searchLink fieldCode="DE" term="%22Nitrogen+in+soils%22">Nitrogen in soils</searchLink><br /><searchLink fieldCode="DE" term="%22Matthew+effect%22">Matthew effect</searchLink><br /><searchLink fieldCode="DE" term="%22Fungal+communities%22">Fungal communities</searchLink>
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  Data: Excessive nitrogen fertilization has emerged as a significant focus of contemporary agricultural research. Reducing nitrogen fertilization is factually a process of decreasing soil nitrogen resource pulses, elucidating the environmental adaptations and ecological processes of soil fungal communities in this process, and contributions of different sub-communities in it, is a core but less known theme. We investigated soil fungal communities and subcommunities in response to reduction of nitrogen fertilization (fertilization rates were 100 %, 75 %, 50 %, and 0 %, respectively), based on a four-year field plot simulation experiment combining high-throughput sequencing technology. The diversity, community stability, environmental correlation, and co-occurrence network of soil fungal communities was analyzed, combined with concomitant alterations in soil nutrient content throughout the process of nitrogen fertilization reduction, aimed to compare the ecological impact of abundant and rare taxa on the whole soil fungal community. Our results showed that the nitrogen fertilization reduction decreased the diversity (Shannon index) and improved the stability of whole fungal communities. In addition, reduction in nitrogen fertilization leads to an improvement in soil pH (from 4.21 to 6.11) and a decrease in ammonium nitrogen and nitrate nitrogen (94.29 and 130.49 mg/kg, respectively), and abundant taxa showing higher sensitivity but less fluctuations in the breadth of the ecological niche to environmental changes. Reduced nitrogen fertilization resulted in a more complex and stable fungal network structure, while abundant taxa had less variability and higher contributions. These findings highlight the dominant role of abundant taxa in maintaining fungal community stability in facing nitrogen reduction strategies. [Display omitted] • Reduction in N fertilization increases the stability of soil fungal communities. • Abundant taxa showing less fluctuation in ecological niche width. • Abundant taxa enhanced stability of fungal networks. • Interactions within the fungal community exhibit a clear "Matthew effect". [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Soil & Tillage Research is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.still.2025.106501
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      – Code: eng
        Text: English
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        PageCount: 1
        StartPage: N.PAG
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      – SubjectFull: Nitrogen fertilizers
        Type: general
      – SubjectFull: Ecological niche
        Type: general
      – SubjectFull: Ecological impact
        Type: general
      – SubjectFull: Nitrogen in soils
        Type: general
      – SubjectFull: Matthew effect
        Type: general
      – SubjectFull: Fungal communities
        Type: general
    Titles:
      – TitleFull: Abundant taxa enhanced stability of fungal communities according to reduced nitrogen fertilization.
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            NameFull: Han, Heming
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            NameFull: Zhang, Bo
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            – D: 01
              M: 07
              Text: Jul2025
              Type: published
              Y: 2025
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              Value: 249
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