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June 20, 2026GeodermaOpen Access

The roles of litter quality and microbial processing in shaping leachate chemodiversity during early decomposition

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Authors

DQDiana Sofia Contreras QuirozLLLaurel LynchTCTayyba Kanwal Choudhary

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Overview

Randomized trial examines how litter quality and microbial processing affect DOM diversity, highlighting its implications for carbon cycling.

Key Points

  • This research investigates the combined effects of litter quality, microbial activity, and decomposer community composition on dissolved organic matter (DOM) chemodiversity.
  • Varying litter quality and microbial processing across nine forest litter types in five-day incubations.
  • Manipulating microbial activity using sodium azide and comparing phyllosphere-only versus soil-inoculated decomposer sources.
  • Analyzing the quantity of DOM released and its chemodiversity under various conditions.
  • Initial litter chemistry strongly influenced DOM quantity released (234 – 508 mg C g⁻ 1 litter-C) but weakly predicted molecular chemodiversity.
  • Microbial activity reduced net DOM release in cold and warm water conditions (−11 – −31 %) but increased it under freeze–thaw conditions (+20 %).
  • Soil microbial inoculation changed decomposer composition and increased evenness, with only modest effects on chemodiversity.

Cite This Study

Quiroz et al. (2026) studied this question.

synapsesocial.com/papers/6a363123db0793dc1a53823ehttps://doi.org/10.1016/j.geoderma.2026.117897
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