Elevated moisture stimulates carbon loss from mineral soils by releasing protected organic matter.
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ABSTRACT:
SUBMITTER: Huang W
PROVIDER: S-EPMC5701196 | biostudies-literature | 2017 Nov
REPOSITORIES: biostudies-literature
Publications
Elevated moisture stimulates carbon loss from mineral soils by releasing protected organic matter.
Huang Wenjuan W Hall Steven J SJ
Nature communications 20171124 1
Moisture response functions for soil microbial carbon (C) mineralization remain a critical uncertainty for predicting ecosystem-climate feedbacks. Theory and models posit that C mineralization declines under elevated moisture and associated anaerobic conditions, leading to soil C accumulation. Yet, iron (Fe) reduction potentially releases protected C, providing an under-appreciated mechanism for C destabilization under elevated moisture. Here we incubate Mollisols from ecosystems under C<sub>3</ ...[more]
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