Microbial Interactions and Climate Change in Soil Ecosystems

Soil ecosystems are sustained by intricate networks of microorganisms—bacteria, fungi, archaea and microeukaryotes—that interact with one another, with plant roots and with soil physicochemical parameters. These interactions regulate nutrient cycling, organic matter decomposition and the production or consumption of greenhouse gases such as carbon dioxide, methane and nitrous oxide. Climate change alters temperature regimes, soil moisture patterns and the frequency of extreme weather events, which in turn reshape microbial community composition, functional capacity and stability. Shifts in the abundance of key microbial taxa can destabilise biogeochemical cycles and feedback to climate through accelerated carbon release or altered nitrogen transformations. Conversely, resilient microbial networks and functional redundancy can buffer ecosystems against perturbation, supporting plant growth and soil health under changing conditions. Advances in molecular ecology and modelling have begun to unravel the dynamic responses of soil microbes to warming, drought and altered precipitation, revealing opportunities to harness beneficial microbial processes for carbon sequestration, enhanced nutrient use efficiency and sustainable land management.

Research from Nature Portfolio

A comprehensive survey across diverse soil types has demonstrated that trace metallic micronutrients such as iron, zinc and manganese strongly influence microbial community composition and the abundance of functional genes responsible for nutrient cycling. Experimental additions of iron and zinc were shown to shift microbial networks and indirectly enhance plant productivity through both direct nutrient supply and microbially mediated processes. In a foundational consensus statement, experts emphasised that microorganisms are central to both driving and mitigating climate change. This work highlighted that microbial feedbacks—including greenhouse-gas fluxes and responses to rising temperature and altered moisture—will determine the trajectory of ecosystem resilience and global carbon balance. Together, these studies underscore the critical need to integrate microbial dynamics into projections of soil ecosystem responses and to explore micronutrient management as a lever for climate-smart agriculture.

Microbial Interactions and Climate Change in Soil Ecosystems publication trend

The graph below shows the total number of articles in microbial interactions and climate change in soil ecosystems across all publications each year (not limited to Nature Index journals).

Technical terms

Biogeochemical cycles: Pathways by which elements such as carbon and nitrogen circulate between living organisms and the physical environment.

Functional redundancy: The extent to which multiple microbial taxa can perform similar ecological functions, enhancing system stability.

Resistance: The ability of a microbial community to remain unchanged when exposed to environmental disturbance.

Resilience: The capacity of a microbial community to recover its structure and function after a perturbation.

Rhizosphere: The zone of soil immediately surrounding plant roots, rich in microbial activity and chemical exchanges.

Metagenomics: The analysis of genetic material recovered directly from environmental samples to characterise microbial communities.

References

1. Metallic micronutrients are associated with the structure and function of the soil microbiome. Nature Communications (2023).
2. Scientists’ warning to humanity: microorganisms and climate change. Nature Reviews Microbiology (2019).
3. Soil Microbiomes Under Climate Change and Implications for Carbon Cycling. Annual Review of Environment and Resources (2020).
4. Short-Term Responses of Soil Microbial Communities to Changes in Air Temperature, Soil Moisture and UV Radiation. Genes (2022).
5. Soil Microbiome: A Treasure Trove for Soil Health Sustainability under Changing Climate. Land (2022).