Unveiling the Role of Edaphic Microalgae in Soil Carbon Sequestration: Potential for Agricultural Inoculants in Climate Change Mitigation

Agampodi Gihan S. D. De Silva, Z K. Hashim, Wogene Solomon, Jun-Bin Zhao, Györgyi Kovács, István M. Kulmány and Zoltán Molnár ()
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Agampodi Gihan S. D. De Silva: Agricultural and Food Research Centre, Széchenyi István University, 9200 Mosonmagyaróvár, Hungary
Z K. Hashim: Agricultural and Food Research Centre, Széchenyi István University, 9200 Mosonmagyaróvár, Hungary
Wogene Solomon: Department of Plant Sciences, Albert Kázmér Faculty of Agricultural and Food Sciences, Széchenyi István University, 9200 Mosonmagyaróvár, Hungary
Jun-Bin Zhao: Department of Terrestrial Ecology, Division of Environment and Natural Resources, Norwegian Institute of Bioeconomy Research, 1431 Ås, Norway
Györgyi Kovács: Institute of Water and Environmental Management, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, 4032 Debrecen, Hungary
István M. Kulmány: Agricultural and Food Research Centre, Széchenyi István University, 9200 Mosonmagyaróvár, Hungary
Zoltán Molnár: Department of Plant Sciences, Albert Kázmér Faculty of Agricultural and Food Sciences, Széchenyi István University, 9200 Mosonmagyaróvár, Hungary

Agriculture, 2024, vol. 14, issue 11, 1-33

Abstract: Agricultural soil has great potential to address climate change issues, particularly the rise in atmospheric CO 2 levels. It offers effective remedies, such as increasing soil carbon content while lowering atmospheric carbon levels. The growing interest in inoculating soil with live microorganisms aims to enhance agricultural land carbon storage and sequestration capacity, modify degraded soil ecosystems, and sustain yields with fewer synthetic inputs. Agriculture has the potential to use soil microalgae as inoculants. However, the significance of these microorganisms in soil carbon sequestration and soil carbon stabilization under field conditions has yet to be fully understood. Large-scale commercial agriculture has focused on the development and use of inoculation products that promote plant growth, with a particular emphasis on enhancing yield attributes. Gaining more profound insights into soil microalgae’s role in soil carbon cycling is necessary to develop products that effectively support soil carbon sequestration and retention. This review comprehensively explores the direct and indirect mechanisms through which soil microalgae contribute to soil carbon sequestration, highlighting their potential as microbial inoculants in agricultural settings. This study underlines the need for more research to be conducted on microalgae inoculation into agricultural soil systems aimed at mitigating carbon emissions in the near future.

Keywords: biochar-based inoculants; biological soil carbon sequestration; cyanobacteria; green algae; microbial inoculants; soil carbon dioxide emissions (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2024
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