Articles | Volume 12, issue 2
https://doi.org/10.5194/soil-12-757-2026
https://doi.org/10.5194/soil-12-757-2026
Original research article
 | 
13 Jul 2026
Original research article |  | 13 Jul 2026

Subsoil particulate organic matter is more responsive to  ∼ 10 years of whole-soil warming than mineral-associated organic matter in a temperate forest

Binyan Sun, Guido L. B. Wiesenberg, Elaine Pegoraro, Margaret S. Torn, Michael W. I. Schmidt, and Mike C. Rowley

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Short summary
Soil is the largest terrestrial carbon pool but vulnerable to loss under warming. Using a +4 °C whole-soil warming experiment at Blodgett Forest Research Station to 1 m depth, we investigated density fractions across depths. Below 50 cm, carbon quantity and composition shifted, mainly from losses of unprotected soil organic carbon. Soil carbon protected by minerals stayed largely stable, indicating organo-mineral protection buffers subsoil carbon loss.
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