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The soil microbiome governs the response of microbial respiration to warming across the globe

Author

Listed:
  • Tadeo Sáez-Sandino

    (Universidad Pablo de Olavide)

  • Pablo García-Palacios

    (Consejo Superior de Investigaciones Científicas
    University of Zurich)

  • Fernando T. Maestre

    (Universidad de Alicante
    Universidad de Alicante)

  • César Plaza

    (Consejo Superior de Investigaciones Científicas)

  • Emilio Guirado

    (Universidad de Alicante)

  • Brajesh K. Singh

    (Western Sydney University
    Western Sydney University)

  • Juntao Wang

    (Western Sydney University
    Western Sydney University)

  • Concha Cano-Díaz

    (Rua Escola Industrial e Comercial Nun’Álvares)

  • Nico Eisenhauer

    (German Centre for Integrative Biodiversity Research (iDiv) Halle–Jena–Leipzig
    Leipzig University)

  • Antonio Gallardo

    (Universidad Pablo de Olavide)

  • Manuel Delgado-Baquerizo

    (CSIC)

Abstract

The sensitivity of soil microbial respiration to warming (Q10) remains a major source of uncertainty surrounding the projections of soil carbon emissions to the atmosphere as the factors driving Q10 patterns across ecosystems have been assessed in isolation from each other. Here we report the results of a warming experiment using soils from 332 sites across all continents and major biomes to simultaneously evaluate the main drivers of global Q10 patterns. Compared with biochemical recalcitrance, mineral protection, substrate quantity and environmental factors, the soil microbiome (that is, microbial biomass and bacterial taxa) explained the largest portion of variation in Q10 values. Our work provides solid evidence that soil microbiomes largely govern the responses of soil heterotrophic respiration to warming and thus need to be explicitly accounted for when assessing land carbon–climate feedbacks.

Suggested Citation

  • Tadeo Sáez-Sandino & Pablo García-Palacios & Fernando T. Maestre & César Plaza & Emilio Guirado & Brajesh K. Singh & Juntao Wang & Concha Cano-Díaz & Nico Eisenhauer & Antonio Gallardo & Manuel Delgad, 2023. "The soil microbiome governs the response of microbial respiration to warming across the globe," Nature Climate Change, Nature, vol. 13(12), pages 1382-1387, December.
    • Handle: RePEc:nat:natcli:v:13:y:2023:i:12:d:10.1038_s41558-023-01868-1
    DOI: 10.1038/s41558-023-01868-1
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