Data from: Positron-emitting radiotracers spatially resolve unexpected biogeochemical relationships linked with methane oxidation in Arctic soils ...

Arctic soils are marked by cryoturbic features, which impact soil-atmosphere methane (CH4) dynamics vital to global climate regulation. Cryoturbic diapirism alters C/N chemistry within frost boils by introducing soluble organic carbon and nutrients, potentially influencing microbial CH4 oxidation. C...

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Bibliographic Details
Main Authors: Schmidt, Michael, Mamet, Steven, Senger, Curtis, Schebel, Alixandra, Ota, Mitsuaki, Tian, Tony, Aziz, Umair, Stein, Lisa, Regier, Tom, Stanley, Kevin, Peak, Derek, Siciliano, Steven
Format: Dataset
Language:English
Published: Dryad 2022
Subjects:
Online Access:https://dx.doi.org/10.5061/dryad.jwstqjqbs
https://datadryad.org/stash/dataset/doi:10.5061/dryad.jwstqjqbs
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Summary:Arctic soils are marked by cryoturbic features, which impact soil-atmosphere methane (CH4) dynamics vital to global climate regulation. Cryoturbic diapirism alters C/N chemistry within frost boils by introducing soluble organic carbon and nutrients, potentially influencing microbial CH4 oxidation. CH4 oxidation in soils, however, requires a spatio-temporal convergence of ecological factors to occur. Spatial delineation of microbial activity with respect to these key microbial and biogeochemical factors at relevant scales is experimentally challenging in inherently complex and heterogeneous natural soil matrices. This work aims to overcome this barrier by spatially linking microbial CH4 oxidation with C/N chemistry and metagenomic characteristics. This is achieved by using positron-emitting radiotracers to visualize millimeter-scale active CH4 uptake areas in Arctic soils with and without diapirism. X-ray absorption spectroscopic speciation of active and inactive areas shows CH4 uptake spatially associates ...