Cited by 669Soil Carbon and Nitrogen DynamicsEnvironmental and biological studiesEcology and Vegetation Dynamics Studies

Understanding the dominant controls on litter decomposition

Open access
Bradford, Mark A., Berg, Björn, Maynard, Daniel S., Wieder, William R., Wood, Stephen A.·2016·Journal of Ecology

Abstract

Summary: Litter decomposition is a biogeochemical process fundamental to element cycling within ecosystems, influencing plant productivity, species composition and carbon storage. Climate has long been considered the primary broad‐scale control on litter decomposition rates, yet recent work suggests that plant litter traits may predominate. Both decomposition paradigms, however, rely on inferences from cross‐biome litter decomposition studies that analyse site‐level means. We re‐analyse data from a classical cross‐biome study to demonstrate that previous research may falsely inflate the regulatory role of climate on decomposition and mask the influence of unmeasured local‐scale factors. Using the re‐analysis as a platform, we advocate experimental designs of litter decomposition studies that involve high within‐site replication, measurements of regulatory factors and processes at the same local spatial grain, analysis of individual observations and biome‐scale gradients. Synthesis . We question the assumption that climate is the predominant regulator of decomposition rates at broad spatial scales. We propose a framework for a new generation of studies focused on factoring local‐scale variation into the measurement and analysis of soil processes across broad scales. Such efforts may suggest a revised decomposition paradigm and ultimately improve confidence in the structure, parameter estimates and hence projections of biogeochemical models.

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Crossref · 10.1111/1365-2745.12507

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79 of 79 references verified0 citation errors · 0 not checkable

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  • Only the averages of aggregated microenvironmental variables can support the hypothesis that climate is the primary control over decomposition rate.

    “only the averages of aggregated microenvironmental variables can support the hypothesis that climate is the primary control over decomposition rate (19).”

    From Substrate and climate determine terrestrial litter decomposition (2025) · cites this paper as [19]

    The “Grouped vs. individual data” section says site-level means can exaggerate climate’s apparent importance: mean annual temperature explains 86% of variation in grouped data, versus 71% in individual observations. But the claim’s “only” overstates the result, since individual observations still show a substantial climate association. The paper analyzes site-level climate measures, not averages of measured microenvironmental variables; the “The data set” section says climate was not measured at the litterbag scale. (LLM, conf=0.87)

    Experimental — accuracy not yet measured
  • Previous studies identified important and representative variables for litter decomposition.

    “The selection of variables is based on two main criteria: First, the conclusions proposed by previous studies (7, 19–21, 23), which identified important and representative variables; and second, the availability and reliability of data sources for these variables at global scale.”

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Research works printed but not linked: 2

  1. Ciais, P., Sabine, C., Bala, G., Bopp, L., Brovkin, V., Canadell, J. et al. (2013) Carbon and other biogeochemical cycles. Climate Change 2013: The Physi- cal Science Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change (eds T.F. Stocker, D. Qin, G.-K. Plattner, M. Tignor, S.K. Allen, J. Boschung, A. Nauels, Y. Xia, V. Bex & P.M. Midgley), pp. 465-570. Cambridge University Press, Cambridge, UK.
  2. IPCC (2013) Summary for policymakers. Climate Change 2013: The Physical Science Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change (eds T.F. Stocker, D. Qin, G.-K. Plattner, M. Tignor, S.K. Allen, J. Boschung, A. Nauels, Y. Xia, V. Bex & P.M. Midgley), pp. 3-29. Cambridge University Press, Cambridge, UK.

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Authors
Bradford, M. A., Berg, B., Maynard, D. S., Wieder, W. R., & Wood, S. A.
Affiliations
  • Yale University (US)
  • University of Helsinki (FI)
  • NSF National Center for Atmospheric Research (US)
Corresponding author
Bradford, Mark A.
Venue
Journal of Ecology
Publisher
Wiley
Published
2015-11-27
Volume
104
Issue
1
Pages
229-238
ISSN
  • 0022-0477 (ISSN-L)
  • 1365-2745
OpenAlex
W2108600602
Cited by
669
References
79
Citations by year
2026: 55 · 2025: 78 · 2024: 93 · 2023: 71 · 2022: 67 · 2021: 83 · 2020: 75 · 2019: 57 · 2018: 48 · 2017: 23 · 2016: 17
FWCI
40.26
Type
journal article
Language
en
Open access
Locations
Journal of Ecology (publishedVersion)
Funders
National Science Foundation (DEB‐1021098, DEB‐1457614)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
  • Physical Sciences › Environmental Science › Ecology › Environmental and biological studies
  • Physical Sciences › Environmental Science › Nature and Landscape Conservation › Ecology and Vegetation Dynamics Studies
Keywords
litter decomposition, climate control, spatial grain, soil biogeochemistry, carbon cycle, decomposition model

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