NGEE Arctic and EMSL collaborate to provide molecular-scale insights into SOM degradation

September 12th, 2018
The Science: 

Determine chemical composition during degradation of soil organic matter (SOM) in controlled incubation studies

The Impact: 

Fourier transform ion cyclotron resonance mass spectrometry (FTICR-MS) was used to assess SOM molecular composition. Amino sugars, peptides, and carbohydrate-like compounds are disproportionately more susceptible to microbial degradation than others in the Arctic soil under warming. 

Summary: 

Biochemical composition is proposed to improve process-based models of SOM degradation and climate feedbacks

Molecular-scale investigations reveal the susceptibility of organic carbon stored in Arctic permafrost to microbial degradation with increases in temperature