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Exploring the overflow tap theory: linking forest soil CO2 fluxes and individual mycorrhizosphere components to photosynthesis
The study analyzed soil CO2 efflux (Rs) in a south east England oak forest, finding that autotrophic respiration (Ra) contributes 56% of the total flux, with mycorrhizal hyphae (Rm) accounting for 18%. While soil temperature primarily drives daily Rs variation, root (Rr) and mycorrhizal (Rm) fluxes are linked to gross primary productivity (GPP), with Rm acting as a carbon "overflow tap" that may influence long-term soil organic carbon sequestration.
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Document type: Research paper
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