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Abstract

Summary

Each year, roughly one-sixth of atmospheric carbon (115 Pg C) is cycled through terrestrial vegetation, channeled into the soils below, and respired back to CO2 ( ). However, predicting the reactivity and CO2 buffering capacity of soil systems and thus the carbon-climate feedback in terrestrial ecosystems is limited by poor understanding of the accessibility and turnover of “recalcitrant” organic matter in soils ( ). As major decomposers in soil ecosystems, fungi are among the few organisms on the planet that can feed on chemically stable forms of organic C ( ) but are also known to directly access recently produced plant photosynthate ( ). This study improves quantification of substrate utilization by different fungal ecotypes in order to help define the rates and controls of fungal production and the cycling of soil organic matter.

EAGE Publications BV © 2021 The Authors © European Association of Geoscientists and Engineers
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/content/papers/10.3997/2214-4609.202134043
2021-09-12
2024-04-16

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