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Importance of Microbial Diversity in Soil Health and Ecological Function - A Review

Received: 12 June 2026     Accepted: 5 September 2026     Published: 27 September 2026
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Abstract

Soil microbial diversity is a fundamental component of global biodiversity and plays an important role in sustainable agriculture, environmental protection, and human health. Soil microorganisms, including bacteria, fungi, and actinomycetes, contribute to soil health through organic matter decomposition, nutrient cycling, nitrogen fixation, and phosphorus solubilization. These microbial processes improve nutrient availability, support plant growth, suppress diseases, and maintain ecosystem stability. However, intensive agriculture, pollution, and land-use changes threaten soil microbial diversity and the ecosystem services it provides. This review synthesizes current knowledge on the ecological functions of soil microorganisms and evaluates their applications in sustainable agriculture and environmental monitoring. Recent scientific literature, case studies, and technological advances related to biofertilizers, plant growth-promoting microorganisms, and microbial biosensors were reviewed. Particular attention was given to beneficial microorganisms, especially nitrogen-fixing and phosphate-solubilizing bacteria, which can improve nutrient availability, reduce dependence on synthetic fertilizers, enhance soil fertility, and strengthen soil resilience. The potential of microbial biosensors as innovative tools for detecting environmental pollutants and supporting pollution assessment and waste management was also examined. The findings indicate that integrating beneficial microorganisms and microbial-based technologies can improve soil health, enhance agricultural productivity, reduce chemical inputs, and promote environmentally sustainable farming practices. Microbial biosensors also offer promising approaches for environmental monitoring and early pollutant detection. Overall, conserving and effectively utilizing soil microbial diversity is essential for sustainable agriculture, food security, and environmental conservation. Promoting beneficial microbial communities and advancing microbial biotechnology can contribute to resilient agricultural systems and help address growing global environmental challenges.

Published in American Journal of Ecology (Volume 1, Issue 1)
DOI 10.11648/j.ajoe.20260101.12
Page(s) 10-19
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2026. Published by Science Publishing Group

Keywords

Bio-fertilizer, Soil Health, Microbial Biosensor

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Cite This Article
  • APA Style

    Gebre, T. T., Legesse, Y. G. (2026). Importance of Microbial Diversity in Soil Health and Ecological Function - A Review. American Journal of Ecology, 1(1), 10-19. https://doi.org/10.11648/j.ajoe.20260101.12

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    ACS Style

    Gebre, T. T.; Legesse, Y. G. Importance of Microbial Diversity in Soil Health and Ecological Function - A Review. Am. J. Ecol. 2026, 1(1), 10-19. doi: 10.11648/j.ajoe.20260101.12

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    AMA Style

    Gebre TT, Legesse YG. Importance of Microbial Diversity in Soil Health and Ecological Function - A Review. Am J Ecol. 2026;1(1):10-19. doi: 10.11648/j.ajoe.20260101.12

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  • @article{10.11648/j.ajoe.20260101.12,
      author = {Tesfaye Tadesse Gebre and Yitagesu Girma Legesse},
      title = {Importance of Microbial Diversity in Soil Health and Ecological Function - A Review},
      journal = {American Journal of Ecology},
      volume = {1},
      number = {1},
      pages = {10-19},
      doi = {10.11648/j.ajoe.20260101.12},
      url = {https://doi.org/10.11648/j.ajoe.20260101.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajoe.20260101.12},
      abstract = {Soil microbial diversity is a fundamental component of global biodiversity and plays an important role in sustainable agriculture, environmental protection, and human health. Soil microorganisms, including bacteria, fungi, and actinomycetes, contribute to soil health through organic matter decomposition, nutrient cycling, nitrogen fixation, and phosphorus solubilization. These microbial processes improve nutrient availability, support plant growth, suppress diseases, and maintain ecosystem stability. However, intensive agriculture, pollution, and land-use changes threaten soil microbial diversity and the ecosystem services it provides. This review synthesizes current knowledge on the ecological functions of soil microorganisms and evaluates their applications in sustainable agriculture and environmental monitoring. Recent scientific literature, case studies, and technological advances related to biofertilizers, plant growth-promoting microorganisms, and microbial biosensors were reviewed. Particular attention was given to beneficial microorganisms, especially nitrogen-fixing and phosphate-solubilizing bacteria, which can improve nutrient availability, reduce dependence on synthetic fertilizers, enhance soil fertility, and strengthen soil resilience. The potential of microbial biosensors as innovative tools for detecting environmental pollutants and supporting pollution assessment and waste management was also examined. The findings indicate that integrating beneficial microorganisms and microbial-based technologies can improve soil health, enhance agricultural productivity, reduce chemical inputs, and promote environmentally sustainable farming practices. Microbial biosensors also offer promising approaches for environmental monitoring and early pollutant detection. Overall, conserving and effectively utilizing soil microbial diversity is essential for sustainable agriculture, food security, and environmental conservation. Promoting beneficial microbial communities and advancing microbial biotechnology can contribute to resilient agricultural systems and help address growing global environmental challenges.},
     year = {2026}
    }
    

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  • TY  - JOUR
    T1  - Importance of Microbial Diversity in Soil Health and Ecological Function - A Review
    AU  - Tesfaye Tadesse Gebre
    AU  - Yitagesu Girma Legesse
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    DO  - 10.11648/j.ajoe.20260101.12
    T2  - American Journal of Ecology
    JF  - American Journal of Ecology
    JO  - American Journal of Ecology
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    EP  - 19
    PB  - Science Publishing Group
    UR  - https://doi.org/10.11648/j.ajoe.20260101.12
    AB  - Soil microbial diversity is a fundamental component of global biodiversity and plays an important role in sustainable agriculture, environmental protection, and human health. Soil microorganisms, including bacteria, fungi, and actinomycetes, contribute to soil health through organic matter decomposition, nutrient cycling, nitrogen fixation, and phosphorus solubilization. These microbial processes improve nutrient availability, support plant growth, suppress diseases, and maintain ecosystem stability. However, intensive agriculture, pollution, and land-use changes threaten soil microbial diversity and the ecosystem services it provides. This review synthesizes current knowledge on the ecological functions of soil microorganisms and evaluates their applications in sustainable agriculture and environmental monitoring. Recent scientific literature, case studies, and technological advances related to biofertilizers, plant growth-promoting microorganisms, and microbial biosensors were reviewed. Particular attention was given to beneficial microorganisms, especially nitrogen-fixing and phosphate-solubilizing bacteria, which can improve nutrient availability, reduce dependence on synthetic fertilizers, enhance soil fertility, and strengthen soil resilience. The potential of microbial biosensors as innovative tools for detecting environmental pollutants and supporting pollution assessment and waste management was also examined. The findings indicate that integrating beneficial microorganisms and microbial-based technologies can improve soil health, enhance agricultural productivity, reduce chemical inputs, and promote environmentally sustainable farming practices. Microbial biosensors also offer promising approaches for environmental monitoring and early pollutant detection. Overall, conserving and effectively utilizing soil microbial diversity is essential for sustainable agriculture, food security, and environmental conservation. Promoting beneficial microbial communities and advancing microbial biotechnology can contribute to resilient agricultural systems and help address growing global environmental challenges.
    VL  - 1
    IS  - 1
    ER  - 

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