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Antagonistic interactive effects of CO2 and nitrogen on microbial community enhance the persistence of soil C storage

ABSTRACT: To study long-term elevated CO2 and enriched N deposition interactive effects on microbial community and soil ecoprocess, here we investigated soil microbial community in a grassland ecosystem subjected to ambient CO2 (aCO2, 368 ppm), elevated CO2 (eCO2, 560 ppm), ambient nitrogen deposition (aN) or elevated nitrogen deposition (eN) treatments for a decade. There exist antagonistic CO2×N interactions on microbial functional genes associated with C, N, P S cycling processes. More strong antagonistic CO2×N interactions are observed on C degradation genes than other genes. Remarkably antagonistic CO2×N interactions on soil microbial communities could enhance soil C accumulation.

ORGANISM(S): soil metagenome Archaea Eukaryota Bacteria Viruses

PROVIDER: GSE98512 | GEO | 2018/05/01

REPOSITORIES: GEO

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