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Updated: May 19, 2026
09:38
Single-throughput Complementary High-resolution Analytical Techniques for Characterizing Complex Natural Organic Matter Mixtures
Published on: January 7, 2019
The origin of litter chemical complexity during decomposition
Kyle Wickings1, A Stuart Grandy, Sasha C Reed
1Department of Natural Resources and the Environment, University of New Hampshire, Durham, NH, USA. k.wickings@unh.edu
Ecology Letters
|August 18, 2012
Summary
Plant litter decomposition drives soil carbon cycling. Decomposers, not just litter type, dictate chemical changes, leading to divergent litter chemistry and impacting soil organic matter formation and carbon stability.
Area of Science:
- Ecology
- Biogeochemistry
- Soil Science
Background:
- The chemical complexity of decomposing plant litter is crucial for the terrestrial carbon (C) cycle.
- The origins of this chemical complexity during decomposition are not fully understood and remain debated.
Purpose of the Study:
- To investigate how plant litter chemistry evolves during decomposition.
- To determine the role of decomposer communities in driving these chemical changes.
Main Methods:
- A long-term (730 days) litter decomposition experiment was conducted.
- Concurrent changes in decomposer community structure and function, and litter chemistry were tracked.
- High-resolution molecular techniques were employed to analyze litter chemistry.
Main Results:
- Litter chemistry diverged during decomposition, contrary to the convergence paradigm, due to decomposer activity.
- Identical litter types decomposed by different decomposer communities showed significant chemical differences, even after substantial mass loss (>90%).
Conclusions:
- Decomposer community characteristics are key regulators of litter chemistry changes during decomposition.
- These chemical alterations can influence the properties of litter-derived soil organic matter (SOM).
- Decomposition dynamics mediated by decomposers affect soil carbon turnover and stabilization.
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