Evaluation of Microbe-Driven Soil Organic Matter Quantity and Quality by Thermodynamic Theory.

ABSTRACT: Microbial communities, coupled with substrate quality and availability, regulate the stock (formation versus mineralization) of soil organic matter (SOM) in terrestrial ecosystems. However, our understanding of how soil microbes interact with contrasting substrates influencing SOM quantity and quality is still very superficial. Here, we used thermodynamic theory principles and Fourier transform ion cyclotron resonance mass spectrometry (FTICR-MS) to evaluate the linkages between dissolved organic matter (DOM [organic substrates in soil that are readily available]), thermodynamic quality, and microbial communities. We investigated soils from subtropical paddy ecosystems across a 1,000-km gradient and comprising contrasting levels of SOM content and nutrient availability. Our region-scale st

SUBMITTER: Zhang J 

PROVIDER: S-EPMC8545108 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature